Samsung M9900 - Electronic Control and Ignition Errors

Error items and Diagnostic Codes
Error Display
Trigger Action Taken
Delicate
Dryer
Tumble
Dryer
- 9C1 Electronic control problem (Invalid
Voltage).
- Check the PCB and wire harness.
- Check if power is supplied properly.
1 AC AC
Electronic control problem
[Invalid Communication (SUB
PBA↔Main PBA)]
- First check the PCB and wire harness.
- Replace the PCB if the problem persists.
1 HC HC
Invalid heating temp in running the
dryer.
- Check the PCB and Thermistor.
1 AC7 -
Electronic Control Problem [Invalid
Communication (Delicate Dryer MAIN
PBA ↔Tumble Dryer MAIN PBA)]
- First check the PCB and wire harness.
- Replace the PCB if the problem persists.
- HC2 Gas ignition fails.
- Make sure the gas valve is unlocked.
- Make sure the filter is unclogged.
- Make sure the plumbing is not disconnected or
clogged.
5. Test Mode & Error Check
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