E6
Hotpoint Communication Error Between Display Panel and Main Control Board

Unit displays E6 and may not respond correctly to remote control commands; sometimes buttons on the panel still work.

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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 or oxidized communication harness, Damaged display PCB, Faulty main control PCB

How to Fix / Troubleshooting

Safety: Unplug the air conditioner before accessing internal electronics.

Steps:

  • Check remote first: Replace remote batteries and ensure there is a clear line of sight to the receiver. Confirm the remote is set to the correct mode.
  • Inspect front control panel: Remove the front bezel to access the display/control PCB. Look for moisture damage, corrosion, or burnt components.
  • Reseat ribbon cable: Locate the ribbon or multi-wire harness connecting the display PCB to the main PCB. Unplug and firmly reconnect both ends to clear oxidation or poor contact.
  • Check for pinched wires: Ensure the harness is not pinched by plastic covers or metal brackets.
  • Test operation: Reassemble the front panel, restore power, and test both panel buttons and remote. If E6 clears, the issue was likely a loose connection.

If E6 persists: Either the display PCB or the main control PCB is likely defective. Replacement usually requires ordering the exact Hotpoint part number and may be best handled by a technician.

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Repair Difficulty

Hard 4/5

Required Part

Display Control PCB
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