Error Code IO_EXPANDER_COMM
Internal IO expander chip on main board has failed
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: Blinks on display
What This Means
MAIN PCB internal IC failure; Soldering defect on MAIN PCB
What actually causes this:
An internal chip on the main circuit board used to manage multiple inputs and outputs has stopped communicating.
First Thing to Check
Power cycle the unit once. If the error returns immediately, the main PCB needs replacement.
Parts Involved
How to Fix
- 1
Replace MAIN PCB
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