83 low pressure lockout

Feb 14, 2021 · I have a Carrier Infinity Greenspeed heat pump, installed in July-2015, that has a "System Fault" message: "83-Low Pressure Lockout For 4" We are in the middle of a pretty serious snowstorm here in Ma … read more

83 low pressure lockout. Customer: ***** ***** Bruno. My Carrier Infinity message is "83-low pressure lockout 4 h". We are in the middle of that Atlantic blizzard with lots of snow. I cleared the snow from the unit outside, b … read more

46 83 Low pressure lockout 84 High pressure lockout Brown out (24V) 53 Outside Temp Sensor FLASH CODE FAULT DEFINITION Thermal Cutout Contactor Shorted 74 No 230V at Compressor 32 Low Pressure Switch 55 Coil Temp Sensor 1. Compressor damage may occur if system is over charged. 2. This unit is factory charged with R-410A in accordance with the ...

Advertisement ­C­lusters are now being used on a smaller scale for sensors. For instance, a traditional pressure sensor contains a device that outputs a varying voltage depending o...We need to protect system when Low Ambient time bypasses the existing control. System has lock out relay, but when clock shuts down at night and turns unit on in morning, LO resets. Need to keep it off if ever a leak occurs. It is CHEAER and more intelligent if you use the existing LPS and factory lock-out circuit.We have received a system fault a couple of times: 83-low. ... 83-low pressure lockout 4. ... and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent. Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified ...Ignition Lockout: Check the gas supply and pilot light; consult a qualified engineer if unresolved. F2: Flame Loss: Check the gas supply and pilot light; ensure the gas valve is open. F1: Low Water Pressure: Check and refill the boiler to 1.5 bars; repair any leaks. L6: False Flame Lockout: Reset the boiler; check the flame detection mechanism.Turn the gas valve switch to the "OFF" position. Use a ruler to measure the distance from the base of the fan to the end of the air shutter (FIG. 2-7). Compare this distance to the specified "A" dimension for the pool heater in Table 2B. Turn all gas valve knobs and the manual gas cock to the "OFF" position.Good morning. My name is ***** ***** I will be working with you today.The low pressure lock out can be caused by a couple of things. One being low on refrigerant, another being low air flow across the indoor coil and the last being a restriction such as a TXV metering device sticking shut.Factory FIT RLC; 80, 100, 120, 140 & 150: Kashima coated upper tubes, 1.5" tapered steerer, 1 1/8" steerer, low-speed compression, lever actuated lockout, lockout force adjust, air spring pressure, rebound. Factory FIT Terralogic®; 80, 100, 120: Kashima coated upper tubes, 1.5" tapered steerer, 1 1/8" steerer, Terralogic® threshold, air spring pressure, reboundUnit 8 years old. I took cover off and saw Code 83 low pressure on indicator light, so I expect it has a leak somewhere. Service tec was here last week and tried to sell me a new unit before even checking for leaks or verifying low pressure. ... The other zone is not working. I checked the status and it says "Code 83 - low pressure lockout - 4 ...

Fault Code 71- Thermal cutout in Low Stage occurs when trying to start up in Low Stage. Fault Code 81 - Thermal lockout in Low Stage 4 Hours occurs due to overheat These Infinity systems are not always easy to troubleshoot. In looking at some technical info I see several problems listed..... 1) problem with control boardOctober 22, 2023 by GEGCalculators. The heat pump lockout temperature typically ranges between 30-40°F (-1 to 4°C) in mild climates, 20-30°F (-6 to -1°C) in moderate climates, 10-20°F (-12 to -6°C) in cold climates, and below 10°F (-12°C) in very cold climates. This temperature represents the point at which a heat pump switches to a ...Carrier infinity heatpump gives fault code 83 low pressure. carrier infinity heatpump gives fault code 83 low pressure lockout for 4 hours. ...Back online, Like I mentioned before, low pressure may be low refrigerant ( to check that requires refrigerant gauges ) Or unsurficient air flow from inside unit ( to check that, check for cloged furnace filter, or dirty coil, or dirty blower wheel, or defective indoor blower motor not turning fast enough). These are all the posibilities, I would start with filter...I dont know if it helps any but im almost positive its giving the low pressure lockout any time it gets down to the tens or single digits. Right now its back up in the 30s and 40s and has been working smoothly. The part number RHE47-10-05-43-04 minus the dashes or 47100543046792 minus the 6792. Hopefully that works.

My thermostat has a system malfunction message - 84 high pressure lockout. Well, does not seem to be cooling as - Answered by a verified HVAC Technician. We use cookies to give you the best possible experience on our website. ... My systems says fault code 83, heat pump, low pressure.Customer: ***** ***** Bruno. My Carrier Infinity message is "83-low pressure lockout 4 h". We are in the middle of that Atlantic blizzard with lots of snow. I cleared the snow from the unit outside, b … read moreRan into a Lennox xp14 heat pump with matching 4 ton cased coil. Kicking out on low pressure fault. Pressure tested the indoor coil and lineset, then the condesor. Held at 400 psi hours. Charged the system back with 410a, and ran in cooling, was getting around 20-30 on the suction side and about 180-190 on liquid side. And the indoor was starting to freeze up past the expansion valve.Description. The P70, P72, and P170 Controls for low pressure applications are designed primarily for low pressure cut-out control, pump-down control, and capacity control on commercial refrigeration and air conditioning applications. These controls are available in several pressure ranges and are compatible with most common refrigerants.

Jalisco's in buda.

My house has two zones. Carrier units, less than 2 years old. One of the zones is fine. The other zone is not working. I checked the status and it says "Code 83 - low pressure lockout - 4 hours". Mode … read moreOct 23, 2023 · Carrier infinity system has code 83 low pressure and code 74 are these related in anyway. Technician ordered parts for code 74 but, I am concerned that won’t solve the total issue. Contractor's Assistant: I understand that you're experiencing code 83 low pressure and code 74 on your Carrier Infinity system. Is that correct? Code 82 -- Thermal lockout in high stage -- 4 hrs. Code 83 -- Low Pressure Lockout -- 4 hrs. Code 84 -- High Pressure Lockout -- 4 hrs. Code 85 -- Low contactor open Code …The compressor lockout is designed to protect the compressor from damage due to low oil levels. When the engine is started, the oil pressure sensor sends a signal to the controller. If the oil pressure is insufficient, the controller will activate the compressor lockout. This prevents the compressor from turning on and protects it from damage. The compressor lockout is designed to protect the compressor from damage due to low oil levels. When the engine is started, the oil pressure sensor sends a signal to the controller. If the oil pressure is insufficient, the controller will activate the compressor lockout. This prevents the compressor from turning on and protects it from damage.

This manual is also suitable for: View and Download Carrier 25VNA service manual online. Infinity Variable Speed Heat Pump with Greenspeedt Intelligence 2 to 5 Nominal Tons. 25VNA heat pump pdf manual download. Also for: 25vna24, 25vna36, 25vna48, 25vna60.Fixed defect where a shutdown in cooling and subsequent startup in low ambient heating could fail to switch the reversing valve to the heating position. Forced outdoor fan off until pressure differential recovers and valve switches. Symptom of this problem is (61-13) or (61-53) “Reversing Valve Timeout Lockout”.Thread: Carrier infinity 25hna - code 83 low pressure lockout 4 hours - cooling mode only. Thread Tools. Show Printable Version; 05-23-2014, 08:34 PM #1. Eric Séguin. View Profile View Forum Posts View Forum Threads New Guest Join Date May 2014 Location Mirabel, Canada Posts 1 Post LikesCarrier infinity heatpump gives fault code 83 low pressure. carrier infinity heatpump gives fault code 83 low pressure lockout for 4 hours. ... carrier infinity gaspack that calls for heat the inducer try to engage and fails in the sequence then get the #32 code low pressure switch is open.The high pressure switch is also open an ...Low Stage Thermal Lockout : 82: Suction over Temperature Lockout (Elevated from Fault Code 72 after 3 occurrences) 83: Low Pressure Lockout for 4 hours (Elevated from fault code 32 after 3 occurrences) 84: High Pressure Lockout for 4 Hours (Elevated from fault code 31 after stage (speed) can no longer be lowered) 85Carrier Infinity System, Code 83-Low Pressure Lockout, Technician cleaned outside and inside coils, replaced filter, and put more freon in it. Problem recurred within 10 days …When it comes to building a deck, there are many options available. One of the most popular places to shop for decking boards is at Lowes. Lowes has a wide selection of decking boa...The most common reason for a heat pump high-pressure lockout is a restricted refrigerant flow. This can be caused by kinked refrigerant lines, clogged liquid lines, or dirty air filters. If there is a restriction, the pressure in the system will increase, triggering the high-pressure lockout.Hepatic ischemia is a condition in which the liver does not get enough blood or oxygen. This causes injury to liver cells. Hepatic ischemia is a condition in which the liver does n...

Low Ambient Lockout. Issue: What is Low Ambient Lockout? Resolution: This is a user enabled feature that prevents a unit from starting whenever the ambient temperature is below a specific setpoint. The factory default of the feature is "Disabled", and the setpoint range is between -20 (20 below zero) and 40 F. The factory default is 20 F.

83: Low Pressure Lockout: Amber: 84: High Pressure Lockout: When to Get a Technician for KeepRite Air Conditioner Repairs. Although you may be able to effectively diagnose the source of your KeepRite air conditioner's problem, it's typically considered more advisable to contact a certified HVAC technician when it comes to performing the ...Low Pressure Lockout = Code 3. The low pressure switch must be open and remain open for 30 continuous seconds during "on" cycle to be recognized as a low pressure fault. If the low pressure switch is open for 30 seconds prior to compressor power up it will be considered a low pressure (loss of charge) fault. The low pressure switch input is ...Trunnion-style 83 and H83 series ball valves provide durable service in high- and low-pressure applications. They feature a compact, maximum-flow design, low operating torque, and wide temperature range, and can be ordered with ECE R110-type approval. ... Features: Limits access to manually actuated valves; Lockout accessory enables compliance ...Manual Reset Lockout Option Provides "trip-free" low pressure lockout that cannot be overridden or reset until pressure returns to specified level Limited Knob Adjustment Option Restricts control adjustment ranges and deters tampering and over-adjustment P70, P72, and P170 Controls for Low Pressure ApplicationsCustomer: ***** ***** Bruno. My Carrier Infinity message is "83-low pressure lockout 4 h". We are in the middle of that Atlantic blizzard with lots of snow. I cleared the snow from the unit outside, b … read moreHIGH PRESSURE SWITCH LOW PRESSURE SWITCH THERMISTOR (OUTDOOR AIR) THERMISTOR COIL OUTDOOR FAN RELAY OUTDOOR FAN START CAPACITOR START RELAY START THERMISTOR 1. Compressor damage may occur if system is over charged. 2. This unit is factory charged with R-410A in accordance with the amount shown on the rating plate. The charge is adequate forSave up to $286 with NordVPN coupons. 31 NordVPN discount codes verified today! PCWorld’s coupon section is created with close supervision and involvement from the PCWorld deals te...It is a carrier infinity 80 model number: cnpvp3617ataacaa Fault code 83 low pressure lock out. I've changed the filter and the system seems to have kicked back on but on the menu is says "gas heat low" do I just need to give it time to get back to normal? Answered in 17 hours by:

Cheap gas medford oregon.

Craigslist fort collins colorado cars.

Was out combining yesterday and still getting low pressure lockout. So I added another 0.8 lbs yet my gauges still show 20 psi/125 psi at 80f and so seems to indicate more freon needed. ... Case 2388 air conditioning low pressure - School Of Hard Knock: 8/8/2021 23:32; RE: Case 2388 air conditioning low pressure - SDman: 8/8/2021 23:41; RE ...45 82 Thermal lockout Control Fault 46 83 Low pressure lockout 53 Outside Temp Sensor Brown out (24V) 84 High pressure lockout FLASH CODE FAULT DEFINITIONOUTDOOR COIL THERMISTOR Thermal Cutout AUXR Contactor Shorted No 230V at Compressor 32 Low Pressure Switch 55 Coil Temp Sensorto add, ours looks like a normal skimmer cap but when you open it there is a float valve for filling when it is low and an outgoing pipe for draining when it is high. ... 83-low pressure lockout 4 hours. See more posts like this in r/pools. subscribers . Top Posts Reddit . reReddit: Top posts of May 13, 2022.When it's cold outside, I have wary low hot air pressure. Is that's normal? Last night outside temperature was 10 degree Faraingait, and system stop working and give me the message that "System malfunction, call technician" and I have to turn my oil heat on. ... 83-Low Pressure Lockout 4 Hours (1 ewent) 32-Low Pressure swith open (2 ...Carrier Infinity System, Code 83-Low Pressure Lockout, - YouTube. JustAnswer-Q&A. 8.27K subscribers. Subscribed. 1. 2.2K views 2 years ago. From https://www.justanswer.com/ythi JustAnswer...to add, ours looks like a normal skimmer cap but when you open it there is a float valve for filling when it is low and an outgoing pipe for draining when it is high. ... 83-low pressure lockout 4 hours. See more posts like this in r/pools. subscribers . Top Posts Reddit . reReddit: Top posts of May 13, 2022.Gainers Fast Radius, Inc. (NASDAQ:FSRD) shares surged 106.3% to close at $0.21 on Wednesday after dipping around 48% on Tuesday. Fast Radius est... Indices Commodities Currencies...Insufficient Refrigerant Charge. One of the major reasons for low-pressure lockout in heat pump systems is low refrigerant level. Low Refrigerant Affects the Heat Pump functionality, which includes poor exchange of heat throughout the home, causing the pressure to drop and triggering the lockout mechanism. A refrigerant leak is the main …I am getting a low-pressure lockout on my XP14-036-230-02. Could you guys give me some advice on how to troubleshoot this problem? Please correct me if I'm wrong, but I can see two root failures that could lead to this problem: A) Malfunctioning pressure sensor. B) Leak on refrigerant line. How would you troubleshoot this problem? ….

I have cleaned/pressure washed the coils, ... 26,621 satisfied customers. our system says system malfunction alert 83 / low pressure. our system says system malfunction alert 83 / low pressure lockout 4hrs 3 events active. and the word active is flashing how do we fix it? ...After this turn the power Off, and then On again. Press the manual reset button on the boiler control, open the manual gas valve, and allow the unit to light. While the unit is operating, all manuals gas valves need to be closed and the power in the main gas valve should be cut off. 17.I have a low pressure switch lockout code my my York ac. System only 1 year old. Fan blowing but outside unit is totally off. Contractor's Assistant: Do you know the model of your York AC unit? When did you last replace the air filter? Just changed indoor filters. Think it's an affinity. Paid over $10000 for AC and furnace systemLockout P70AB-12 MICRO-SETTM Low Pressure Control. The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office. ... 83 13/16 20 2-13/16 71 1-11/16 1-3/4 43 44 p70_low_NEMA1_dims.eps Dimensions for Low Pressure ... Low refrigerant charge could cause it. If you're running it in cool mode, a bad blower or dirty filter could cause it. Only thing I can advise you to do it turn off the breakers for the indoor and outdoor units for a few minutes, turn it back on, and see if the issue goes away. 1. High Pressure: High refrigerant pressure in your HVAC system can trigger compressor lockout. This typically occurs when the system is overcharged with refrigerant or when the condenser coils are dirty or blocked, hindering proper heat exchange. 2. Low Pressure: On the flip side, low refrigerant pressure can also lead to compressor lockout.While there is no specific number for low blood pressure, most experts say blood pressure is too low when it causes symptoms or drops suddenly. In general, though, low blood pressure can be considered anything under 90/60. More information about a blood pressure reading of 83/55. A blood pressure reading of 83/55 is pronounced "83 over 55."Suction Over Temp Lockout: 83: 4 Hours: Low Pressure Lockout for 4 hours: 84: 4 Hours: High Pressure Lockout for 4 hours: 85: 15: Fan Inverter Temp Lockout: 86: 15:We have a lockout code 82 on out A/C system. The unti is not blowing cold air and it is heating up in the house. It is 94 degrees outside. Contractor's Assistant: Did you double-check the thermostat's settings? And what about the filters? What settings? yes, the "clean return filter" light is on. 83 low pressure lockout, Carrier Infinity System, Code 83-Low Pressure Lockout, Technician cleaned outside and inside coils, replaced filter, and put more freon in it. Problem recurred within 10 days …, 45 82 Thermal lockout Control Fault 46 83 Low pressure lockout 53 Outside Temp Sensor Brown out (24V) 84 High pressure lockout FLASH CODE FAULT DEFINITIONOUTDOOR COIL THERMISTOR Thermal Cutout AUXR Contactor Shorted No 230V at Compressor 32 Low Pressure Switch 55 Coil Temp Sensor, What does a blood pressure reading of 83/50 mean? Readings at or below 83/50 usually indicate low blood pressure or what is called Hypotension. What this means is the blood pressure in your arteries is lower than what is considered normal. However, there's usually no need to be concerned about low blood pressure unless you're experiencing ..., My thermostat showing system fault 82-Thermal lockout in. my thermostat showing system fault 82-Thermal lockout in high stage 4 … read more. airheatman. HVAC Technician. 6 years college. 19,130 satisfied customers. What does 82 thermal Lockout mean. Carrier infinity About 12. I have not tried anything , I seen it before but it seems to …, Unit is a geothermal setup which has been having winter issues since install 5-6 years ago. It would get low pressure lockouts on very cold/freezing days. A tech replaced the low pressure sensor and it worked like a champ all winter, the most efficient it's ever run. Now with warmer weather and switching to cooling and it essentially locks out ..., 1. Check Low Pressure Switch. At the defrost board, check for 24VAC between each "LO-PS" terminal and "C". Power on Both Terminals = Switch Closed → …, The most common reason these stop working is a low refrigerant charge. The unit will typically be going off on a low pressure safety and will need to be pressure checked and re charged. The technician can also add refrigerant dye if the unit is leaking and this will aid in finding the leak as well., 45 82 Thermal lockout Control Fault 46 83 Low pressure lockout 53 Outside Temp Sensor Brown out (24V) 84 High pressure lockout FLASH CODE FAULT DEFINITIONOUTDOOR COIL THERMISTOR Thermal Cutout AUXR Contactor Shorted No 230V at Compressor 32 Low Pressure Switch 55 Coil Temp Sensor, In this video, Tim Smith demonstrates the proper procedure for diagnosing a faulty low pressure cutout (or low pressure switch) on a residential AC.Is the in..., Description. The P70, P72, and P170 Controls for low pressure applications are designed primarily for low pressure cut-out control, pump-down control, and capacity control on commercial refrigeration and air conditioning applications. These controls are available in several pressure ranges and are compatible with most common refrigerants., The # 83 is a low pressure hard lockout for 4 hours and "in the event of a low pressure trip or low pressure lockout, check the refrigerant charge and indoor airflow in cooling and outdoor fan and coil in heating mode., 46 83 Low pressure lockout 84 High pressure lockout Brown out (24V) 53 Outside Temp Sensor FLASH CODE FAULT DEFINITION Thermal Cutout Contactor Shorted 74 No 230V at Compressor 32 Low Pressure Switch 55 Coil Temp Sensor 1. Compressor damage may occur if system is over charged. 2. This unit is factory charged with R-410A in accordance with the ..., Trunnion-style 83 and H83 series ball valves provide durable service in high- and low-pressure applications. They feature a compact, maximum-flow design, low operating torque, and wide temperature range, and can be ordered with ECE R110-type approval. ... Features: Limits access to manually actuated valves; Lockout accessory enables compliance ..., Low-Pressure Control. When the LPC is opened for 1 continuous second, the compressor for that circuit is turned off immediately. The compressor will not be allowed to restart for a minimum of 3 minutes. If four consecutive open conditions occur during an active call for cooling, the compressor will be locked out, a diagnostic generated, if ..., Readings at or below 83/58 usually indicate low blood pressure or what is called Hypotension. What this means is the blood pressure in your arteries is lower than what is considered normal. However, there's usually no need to be concerned about low blood pressure unless you're experiencing dizziness, fainting, nausea or fatigue., Held button on side for three seconds now says malfunction alert f=fault low pressure lockout 4 hours 17 events active. Any suggestions brrr it's 4 degrees would hate for it to quit especially w holiday coming up ... our system says system malfunction alert 83 / low pressure lockout 4hrs 3 events active. and the word active is flashing how do ..., It is also possible that there is a refrigerant leak causing the low pressure trip to trip. You need a set of refrigeration service gauges to determine the correct refrigerant charge. You could however start the system now, if it resets, and feel the largest copper tube that goes into the AC unit, if that runs cool the system refrigerant charge ..., Thermal Lockout. 82. Thermal cutout occurs in three consecutive high/low stage cycles. High. stage locked out for 4 hours or until 24v power recycled. Low---Pressure. Lockout. 83. Low pressure switch trip has occurred during 3 consecutive cycles. Unit. operation locked out for 4 hours or until 24v power recycled. High---Pressure. Lockout. 84, My technical question is whether the "Code 83 Low Pressure Lockout 4 Hours" alert could be triggered by a leaky or faulty compressor unit on the Heat Pump itself. Any details you can give would be helpful as I further my troubleshooting before I need to call a Bryant technical resource., A957_O Low Refrigerant Pressure System has tripped the low pressure threshold 3 times in one call. Unit will be locked out for one hour Check Refrigerant Charge Check for Restrictions in liquid or suction lines, drier, strainers etc. T958_O High Refrigerant Pressure System High pressure switch has opened., Code 81- Thermal Lockout in Low Stage- 4 Hrs; Code 82- Thermal Lockout in High Stage-4 Hrs; Code 83- Low Pressure Lockout- 4 Hrs; Code 84- High Pressure …, measured liquid service valve pressure. 7. To obtain the required subcooling temperature at specific liquid line pressure, add refrigerant if liquid line temperature is higher than indicated. When adding refrigerant, charge in liquid form using a flow restricting device into suction service port. Recover refrigerant if temperature is lower., Carrier infinity heatpump gives fault code 83 low pressure. carrier infinity heatpump gives fault code 83 low pressure lockout for 4 hours. ..., The Low Pressure Control is an auto-reset type that opens at approximately 7 psig and closes at approximately 22 psig. COOLING LOCKOUT: If the Low Pressure control opens 3 times during a single call for cooling, the defrost control will enter a Hard Lockout. LOCKOUT RESET: Cycle Low Voltage Power to the Defrost Control., The lockout board works as such - the low and high lockout switches have an upper and lower range. The lockout board makes a flashing led indication when the psi measurements are within the upper/lower psi ranges on the switches. On the low level switch, if it gets to 25, the low cutoff will come on and lock out the board, until you do a …, There are several reasons; 1. Pressure Switch is too Old. Yes, the pressure switch can become old and weak. Remember that that switch comprises several delicate parts, including a rubber diaphragm and spring wire. These parts can become worn and unresponsive over time., The service manual states that the high pressure cut off switch opens at 425 PSI and doesn't re-close until the pressure drops below 250 PSI. Check out the R134a temperature/pressure chart. 300 PSI is over 132 degrees F (unless is actually is 132 degrees where you live)., October 22, 2023 by GEGCalculators. The heat pump lockout temperature typically ranges between 30-40°F (-1 to 4°C) in mild climates, 20-30°F (-6 to -1°C) in moderate climates, 10-20°F (-12 to -6°C) in cold climates, and below 10°F (-12°C) in very cold climates. This temperature represents the point at which a heat pump switches to a ..., I have a 288ANA heat pump and started up the air conditioning for the 1st or 2nd time this year. I was walking by the thermostat and all of a sudden it said it has a system malfunction and these fault codes were listed: 32 - Low Pressure Switch Open - 3 events. 71 - Thermal Cutout in Low Stage - 1 event. 83 - Low Pressure Lockout 4 hours - 1 event., A high pressure lockout on a heat pump occurs when the system detects excessive pressure within the refrigerant circuit, which can be caused by several factor: 1. Dirty or blocked condenser coil: A dirty or blocked coil restricts airflow, causing the refrigerant temperature and pressure to rise. Regular cleaning and maintenance can …, 32-55 Compressor Low Suction Lockout (Code: 32) What does this mean Share Add a Comment. ... BHollandCCHAC • Could be a few things. If it's a heat pump and it's really cold, that may cause it. Low refrigerant charge could cause it. If you're running it in cool mode, a bad blower or dirty filter could cause it. ... Low airflow will tank your ..., CODE: 46. RESULT: Brown Out (230v). FIX: Line voltage < 187v for at least 4 seconds. CODE: 47. RESULT: No 230v at Unit Measured at L1 and L2 on circuit board. FIX: There is no 230v at the contactor when indoor unit is powered and cooling/heating demand exists. CODE: 53. RESULT: Outdoor Air Temp Sensor Fault., CODE: 47. RESULT: No 230v at Unit Measured at L1 and L2 on circuit board. FIX: There is no 230v at the contactor when indoor unit is powered and cooling/heating demand exists. CODE: 53. RESULT: Outdoor Air Temp Sensor Fault. FIX: Outdoor air sensor not reading or out of range. CODE: 55.