Error Code 41Er
Communication between main control board and display panel broken
Moderate
Address soon - your appliance may not work properly
Also displayed as: 41Er with alarm on panel
What This Means
MICOM to Panel communication line issue; Main PCB communication chip failure; Panel PCB communication chip failure; Loose or damaged communication cable; Power supply to communication circuit
What actually causes this:
Communication cable disconnected, main board or panel circuit failed, or connector corrosion broke control signals
First Thing to Check
Reseat the communication cable between main PCB and panel
Parts Involved
How to Fix
- 1
Check communication cable between Main and Panel PCB
- 2
Verify both PCBs are powered
- 3
Inspect connector pins for damage or corrosion
- 4
Test cable continuity if available
- 5
Check for swollen capacitors on both boards