H3 High Pressure Switch System Abnormality - Daikin R71FUV1 Service Manual

Troubleshooting by Remote Controller
H3
3.42
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
Incomplete high pressure switch
Disconnection in high pressure switch harness
Defective connection of high pressure switch
connector
Defective outdoor unit PCB
Disconnected lead wire
High Pressure Switch
Si20-701_B
229