Electriq air conditioners may display various error codes to indicate specific issues or malfunctions. Here are some common Electriq AC error codes and their meanings:
Most Common Codes
| Error Codes | Meaning |
|---|---|
| F0 | Abnormal zero passage of PG motor |
| F1 | Abnormal communication between indoor unit and outdoor unit |
| F2 | Open circuit or short circuit of Tr sensor |
| F3 | Open circuit or short circuit of Tp sensor |
| F4 | Malfunction of indoor fan |
| E9 | Open circuit or short circuit of PM 2.5 sensor |
| F5 | Malfunction of outdoor module |
| F6 | Open circuit or short circuit of outdoor temp sensor |
| F7 | Open circuit or short circuit of outdoor coil temp sensor |
| F8 | Open circuit or short circuit of compressorsuction temp sensor |
| F9 | Open circuit or short circuit of compressorextraction temp sensor |
| FA | Malfunction of current and potential transformer |
| FC | Malfunction of compressor drive |
| FD | Power phase sequence fault or open phase fault |
| FE | Open circuit or short circuit of air return sensor |
| FH | Malfunction of outdoor DC fan |
| Fb | Multi-split mode conflict protection |
Outdoor Board Fault Codes
| Error Codes | Meaning |
|---|---|
| EEA | EEPROM fault |
| EEB | EEPROM fault |
| E0 | Fault of communication between coordination board and driver board |
| EC | Fault of communication between variable frequency module and outdoor unit |
| E0A | 1# indoor communication fault |
| E0B | 2# indoor communication fault |
| E0C | 3# indoor communication fault |
| E0D | 4# indoor communication fault |
| E0E | 5# indoor communication fault |
| E10 | Weak current communication fault |
| E9 | Variable frequency drive/module fault |
| EP | Compressor shell roof switch fault |
| EU | Voltage sensor fault |
| E3 | T3 temperature sensor fault |
| E7 | T4 temperature sensor fault |
| E8 | Exhaust temperature sensor fault |
| EH | Air return temperature sensor fault |
| EtA | 1#T2B1 temperature sensor fault |
| EtB | 2#T2B2 temperature sensor fault |
| EtC | 3#T2B3 temperature sensor fault |
| EtD | 4#T2B4 temperature sensor fault |
| EtE | 5#T2B5 temperature sensor fault |
| P0 | IPM module protection |
| P9 | Compressor drive fault protection |
| P9 | HP dial setting fault |
| P1 | Low-voltage protection |
| P2 | Compressor current protection |
| P4 | Exhaust gas high temperature protection |
| H1 | High-voltage switch protection |
| H2 | Low-voltage switch protection |
| P6 | Refrigerator T3 overheat protection |
Troubleshooting
Trouble: The unit does not work
Reason:
- No power supply
- Water-full indicator illuminated
- Timer function is active
- Room temperature too low or too high
Solution:
- Power-on and turn on the unit
- Drain the internal water tank
- Cancel Timer function
- Use only in ambient temperatures between 7-35℃
Trouble: The unit does not seem to perform
Reason:
- In direct sunlight
- Windows or doors open. Large amount of people or a heat source in the room
- Filter is very dirty
- Air inlet or air outlet is blocked
- Room temperature is lower than setting temperature
Solution:
- Draw the curtains, UV affects RC
- Close windows and turn on another air conditioner
- Clean or change the air filter
- Clear out debris
- Change the setting temperature
Trouble: The unit loud
Reason: The unit is not put on flat surface
Solution: Put the unit on flat and hard surface
Trouble: Compressor does not work
Reason: Overheating protection is active
Solution:
- Check venting.
- Restart the unit after 5 minutes when compressor has cooled
Trouble: Remote control doesn’t work
Reason:
- Operating distance is too far.
- Control panel has not received the signal from remote control.
- The batteries are flat
Solution:
- Move remote control closer to the unit and make sure it aims at the air-outlet grille
- Replace the batteries
Wiring Diagram
Manual
HVAC Expert at acerrorcode.com
Regarding error and fault codes, we believe sharing knowledge is the best way to help everyone. That is why we established ACErrorCode.com, to give you every bit of info you need as a customer. HVAC Expert Contact: dannyreese@acerrorcode.com Call: 916-954-2677
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Hi I have h-2 on the condensing unit it says low voltage protection where is this switch what do I do help please
Hi Glenn I have the same fault did you solve this issue ?
Anyone know what it means if one of the indoor units on a dual split system shows F6, but the other is working fine?
F6 is supposed to be “Open circuit or short circuit of outdoor temp sensor”
The code should have been DF as this is the same as what my unit of the same model does. It stands for Defrost. When the unit stops and displays this error the outside unit coils are covered in ice so the unit stops and defrosts the coils and then restarts about 5 to 10 mins later this is normal operation. My unit will work in very cold conditions but the efficiency is greatly reduced.
What does this mean Abnormal zero passage of PG motor what do you do to get rid of this
We have had our eIQ-12WMINV IN-V2 air conditioning unit on for 6 hours when it started to display FD code we had the unit on 32* it was very cold outside and windy. after displaying FD it turned its self off and re started 5 mins later in normal mode displaying the temp of 32* before it did it again when it re stared up again we let it run a couple of mins then we turned the unit off . do you think we may be pushing it to hard, we have not re started it yet we will do tonight and we think it will be ok , i am going to clean the filter first before a turn it on, we dont use it for heating normaly but our boiler packed in at the weekend,we have had this unit about 18 months, i would appreciate any sugestions as to the cause and or solution to the matter.
Yours Sincerly
Mark Lythgoe