Gree GWH18AC-D3DNA1B Service Manual page 47

DIAGNOSTIC CHARTS (CONT.)
Check wiring and Check wiring and
connection between connection between
receiver and ID board. Ok? receiver and ID board. Ok?
Yes Yes
Check input and output Check input and output
on ID and receiver on ID and receiver
boards. Ok? boards. Ok?
Yes Yes
Replace remote control Replace remote control
Fig. 40 – Receiver Board
No No
Fix wiring or Fix wiring or
connection connection
No No
Replace receiver board Replace receiver board
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