E6
Frigidaire
Communication Error Between Display Board and Main PCB / Remote Receiver Fault
Frigidaire air conditioner displays E6 and may not respond correctly to the remote control.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Loose wiring harness between display and main board, failed display PCB, failed main control board, defective IR receiver module
How to Fix / Troubleshooting
Safety: Unplug the unit before removing any control panel covers.
Steps:
- 1. Try local controls: If the remote does not work but the front panel buttons do, replace the remote batteries and test again. If E6 persists, continue.
- 2. Inspect control panel: Remove the front bezel to access the display/control PCB. Check for moisture, corrosion, or insect damage.
- 3. Reseat connectors: Locate the ribbon cable or harness between the display board and the main control board. Disconnect and reconnect firmly to ensure good contact.
- 4. Check for broken traces: Examine the display PCB for cracks or burnt components. If damaged, replace the display/control board assembly.
- 5. Evaluate main board: If wiring and display board appear good but E6 remains, the main PCB may have a communication fault and require replacement.
Note: Handle circuit boards by the edges and avoid static discharge. If you are not comfortable working with electronics, seek professional service.
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Repair Difficulty
Medium
3/5
Required Part
Display Control Board
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