Comfort Air AC Error Codes 

Comfort Air AC Error Codes 

Comfort Air AC Error Codes , Some issues can be resolved without maintenance of the unit, check the chart below to see suggested solutions to the problem before calling for service.

Glossary of error codes and their meanings:
Error code meaning

E1 High Pressure Protection

E2 shutdown for whole unit antifreeze protection

E3 low pressure protection

E4 High Discharge Temporary 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 Security

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 inverter drive and main controller

P7 radiator temporary sensor error

P8 Radiator Overheat Protection

P9 AC Contact Security

Pc current sensor error

PD sensor connection protection

PH over voltage protection

PL low voltage protection

PE Floating Drift Protection

PF drive board ambient temp sensor error

PA AC Current Protection

PU charging circuit error

PP AC input voltage discrepancy

Comfort Air AC Error Codes 

Troubleshooting

Problem: The unit will not working at all.
reason:
1. Blown fuse or tripped circuit breaker
2. power failure
3. Remote control batteries are low
4. The signal is not being sent by remote control
Solution:
1. Check fuse or circuit breaker. reset circuit breaker or Replace the blown fuse.
2. Wait until power is restored to restart the unit. If you experience brown out condition, contact electrician or your nearest utility.
3. Change the battery. Make sure not to mix different brands / types with old and new batteries.
4. Ensure that you are not using a remote control far away from the control panel of the indoor unit.

Problem: The unit runs and then immediately shuts down
Reason: Air inlets and / or outlets are blocked
Solution: Remove any obstruction from the air inlets / outlets / clean the air filter, louvre and inlet grill.

Problem: Abnormal heating or cooling
reason:
1. Air inlet and / or outlet are blocked
2. improper temperature is set
3. Check fan speed
4. Improper louver adjustment
5. Ensure that there are no other sources of heat / steam in the cooling zone
6. Air-conditioned air can escape
Solution:
1. Remove any obstruction from the air inlets / outlets- clean the air filters, louvers and inlet grills.
2. Ensure that the appropriate mode and temperature is set to the unit. Try adjusting the set point temperature on the thermostat to a better operating temperature
3. Adjust the fan speed to see if the situation improves.
4. Try to adjust the position of the louver to ensure that it is open enough.
5. Remove or turn off other devices that produce heat or steam.
6. Ensure that any doors or windows in the hot / cold area are closed

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