Gree GWC12ATCXB-K6DNA1B - 9.2 Procedure of Troubleshooting

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Installation and Maintenance
Service Manual
9.2 Procedure of Troubleshooting
1. Troubleshooting for jumper cap
Main check points:
(1) jumper cap (2) control board of indoor unit
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Display shows “C5”
Check whether the main
board of controller is inserted with
jumper cap.
Insert the equipped
jumper cap
Insert the jump cap
tightly again
Check whether the
jumper cap is not inserted
well.
Replace the jumper
cap with a new one
Eliminate
malfunction
Eliminate
malfunction
Eliminate
malfunction
It's the malfunction of
main board. Replace
the main board with
the a new one.
End