Troubleshooting by Remote Controller Si20-701_B
229
3.42
H3
High Pressure Switch
System Abnormality
Remote Controller Display
H3
Applicable Models
RZQ-K/H, RZQ(S)-B/C, RZQG, RZR-KU/HU
Method of Error Detection
The protection device circuit checks continuity in the high
pressure switch.
Error Decision Conditions
When there is no continuity in the high pressure switch
during compressor stops operating.
Supposed Causes
îš„ Incomplete high pressure switch
îš„ Disconnection in high pressure switch harness
îš„ Defective connection of high pressure switch
connector
îš„ Defective outdoor unit PCB
îš„ Disconnected lead wire
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