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Troubleshooting by Remote Controller
Si20-701_B
117
∗
2. Method to check transmission part of indoor unit
PCB.
1
Turn OFF the power and remove the connecter
X70A of indoor unit PCB.
2
Short circuit X70A.
3
After turning ON the power, check below numbers
under local setting remote control. (Confirmation:
Second code No. at the condition of first code No.
21 on mode No. 41)
↓
∗
After confirmation, turn OFF the power, take off the
short circuit and connect X70A back to original
condition.
Determination 01: Normal
Other than 01: Transmission defect
on indoor unit PCB