Troubleshooting SiBE01-829
52 Service Diagnosis
4.7 Hardware Error (Tact Switch Pin Short)
Remote
Controller
Display
UA
Method of
Malfunction
Detection
The ON/OFF button is continuously pressed during power ON.
Malfunction
Decision
Conditions
The error is caused when the plastic casing is not properly installed and pressing the switch, or
the switch has quality problem.
Supposed
Causes
The casing is not installed properly and pressing the switch.
Faulty switch
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Check if the casing is touching the
ON/OFF swich or not
(R8641)
NO
YES
Replace the indoor unit PCB.
Install the casing properly.
Is it touching?
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