Si20-701_B Troubleshooting by Remote Controller
226
Remote Controller Display
H3
Applicable Model
R(Y)125 • 140LU
Method of Error Detection
The protection device circuit checks for the continuity in
the high pressure switch.
Error Decision Conditions
When the high pressure switch has no continuity during
the compressor stops operating.
Possible Causes
îš„ Defective high pressure switch
îš„ Disconnection in harness of high pressure switch
îš„ Defective connection of high pressure switch
connector
îš„ Defective outdoor unit PCB
îš„ Disconnection in lead wire
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