Er
Danby
General Control Error / Firmware Fault
Display shows Er or generic error; unit may not respond to controls
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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
Corrupted control memory, Voltage spike, Loose control connectors, Failed main control PCB
How to Fix / Troubleshooting
Safety: Unplug the unit before accessing the control area.
- Hard reset: Disconnect power for at least 15 minutes to fully discharge the control board. Plug back in and see if the error clears.
- Inspect control housing: Remove the control panel or rear cover to access the main PCB. Check for moisture, corrosion, or burnt components.
- Reseat connectors: Unplug and reconnect all harnesses to the board to ensure solid electrical contact.
- Environment check: Ensure the cooler is not installed in an area with extreme humidity or temperature that could affect electronics.
- Replace control board: If Er persists after reset and inspection, replace the main control PCB with the correct Danby part.
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Repair Difficulty
Medium
3/5
Required Part
Main Control PCB
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