Comfort-Aire brand came into being in 1955 and has since then been the benchmark for quality and innovation. With headquarters in Jackson, Michigan the company has created a legacy that is hard to match. It was one of the few corporations in the US that become a household brand in the 1095s offering customers the best there was to offer.
Today Comfort-Aire is regarded as one of the best producers of cooling, heating, and dehumidification products. Owned by MARS the company has still been able to stand out from the crowd while taking complete advantage of its parent companies’ access. MARS is currently the leading supplier of HVACR components and motors and even acquired a heat controller in 2013.
Error codes are a common issue you may face with various appliances in your house or workplace. Rather than panicking, we suggest you grab a pen and paper and note down the code rather than pressing various buttons. This can commonly result in prolonging the issue or even causing more issues in the long run. So why risk damaging your appliance any further, when you will be able to find out the exact issue using the common error code list for comfort Aire ac error codes listed below. Once you know the exact issue you can easily call in a professional, or fix the issue yourself.
Codes List
Some issues can be resolved without any maintenance to the unit, check the chart below to see if there is a suggested solution to the problem before calling for service.
| Error Codes | Meaning |
|---|---|
| E1 | High Pressure Protection |
| E2 | Shutdown for Whole Unit AntiFreeze Protection |
| E3 | Low Pressure Protection |
| E4 | High Discharge Temp Protection |
| E6 | Communication Error |
| E9 | Indoor Unit Water Full Error |
| Fo | Refrigerant Recovery Mode |
| F3 | Outdoor Ambient Temp Sensor Error |
| F4 | Outdoor Mid-Coil Temp Sensor Error |
| F5 | Outdoor Discharge Air Temp Sensor Error |
| F7 | Oil Return for Cooling |
| H1 | Forced Defrosting |
| H2 | Oil Return for Heating or Defrosting |
| H3 | Compressor Overheat Protection |
| H5 | IPM Protection |
| H7 | Motor Desynchronizing |
| Hc | PFC Error |
| Lc | Startup Failure |
| LA | DC Fan motor Error |
| Ld | Phase Loss |
| LE | Compressor Stalling |
| LF | Over-Speed |
| P0 | IPM Reset |
| P5 | Compressor Current Protection |
| P6 | Communication Error between the Inverter Drive and the Main Controller |
| P7 | Radiator Temp Sensor Error |
| P8 | Radiator Overheat Protection |
| P9 | AC Contactor Protection |
| Pc | Current Sensor Error |
| Pd | Sensor Connection Protection |
| PH | Over Voltage Protection |
| PL | Low Voltage Protection |
| PE | Temp Drift Protection |
| PF | Drive Board Ambient Temp Sensor Error |
| PA | AC Current Protection |
| PU | Charging Circuit Error |
| PP | AC Input Voltage Anomaly |
Troubleshooting
Before calling for service, review this list. It may save you time and expense. This list includes common occurrences that are not the result of defective workman-ship or materials in this appliance.
Problem: The unit will not operate at all.
Cause:
- Blown Fuse or tripped circuit breaker
- Power Failure
- Remote Control batteries are low
- Signal from remote control is not being sent
Solution:
- Check the fuse or circuit breaker. Replace the blown fuse or reset the circuit breaker.
- Wait until the power is restored to restart the unit. If you experience brown out conditions, contact an electrician or your local utility.
- Replace the batteries. Be sure not to mix old and new batteries, as well as different brands/types
- Be sure that you are not using the remote control too far away from the indoor unit’s control panel.
Problem: The unit runs and then stops immediately
Cause: Air inlets and/or outlets are blocked
Solution: Remove any obstacles from the air inlets/outlets/Clean the air filter, louvers, and inlet grille.
Problem: Abnormal heating or cooling
Cause:
- Air inlets and/or outlets are blocked
- Improper temperature is set
- Check the fan speed
- Improper louver adjustment
- Be sure that there are no other sources of heat/steam in the area being cooled
- Conditioned air might be escaping
Solution:
- Remove any obstacles from the air inlets/outlets-Clean the air filter, louvers, and inlet grille.
- Ensure that the proper mode and temperature is set on the unit. Try to adjust the set point temperature on the thermostat to a better operating temperature
- Adjust the fan speed to see if that improves the conditions.
- Try to adjust the louver position to ensure it is open enough.
- Remove or turn off other appliances producing heat or steam.
- Ensure that any doors or windows in the area being heated/cooled are closed
Problem: Air from unit does not feel cold enough
Solution:
- Room temperature below 62 F(17 C ). Cooling may not occur until room temperature O O rises above 62 F(17 C).
- Temperature sensing behind air filter element touching cold coil. Keep it from the cold coil.
- Set to a Lower temperature.
- Compressor stopped when changing modes. Wait for 3 minutes after set to the COOL mode.
Manual Pdf
COMFORT-AIRE BG-81P Owner’s Manual PDF
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*If you can't find the code you're looking for on our site, please let us know, and we'll update our database as soon as possible.
Getting a E6 error code. Communication error. How do I fix this? Just installed unit.
In heat mode all my units work but after a week or two they shutdown and start flashing the heat symbol
Did you get an answer on this?? My unit does the same thing. Please repond.
what does E3 on the indoor unit display mean?
E3 code is indoor blower has been out of control/not responding. I’m still getting E3 code after changing out board and motor. I’m in contact with TEC support at Comfort Aire and so far they don’t know what is going on. Possibly new board is bad. If I receive anymore information I will let you know.
Its reading be not sure but not turning on
Br I ment
Has anybody else experienced alot of problems with these units circuitboards? Im getting an E1 error code on a brand new system I installed today, but high pressure protection doesnt make any sense as the outdoor unit wont even turn on. Ive had to change out boards 3 times in the last year so Im thinking that may be my problem here today. Anybody have any experience with these systems & an E1 error code?
Wondering if you checked communication wires ell1andell 2 corectlly matched with indoor and gg outdoor?just double check in case
Did you ever get an answer or have this fixed? We’ve had our units for a year and they have always gone to E1 after a few hours of whatever fix comfort aire told us to do. We’ve changed all circuit boards, wires and adjusted the freon.
Installed one today started it up and also got an e1 error code the condenser never did start all the wireing checked ok it’s a 208v system also is the e1 code different on 208v it is on the 110v units one e1 code is telling me high psi the outher e1 code shoes miscommunication