Troubleshooting by Indication on the Remote Controller SiUS39-602
176 Troubleshooting
2.44
“
U2
”
Outdoor Unit: Power Supply Insufficient or
Instantaneous Failure
Remote
Controller
Display
U2
Applicable
Models
REYQ72M, 96M
Method of
Malfunction
Detection
Detection of voltage of main circuit capacitor built in the inverter and power supply voltage.
Malfunction
Decision
Conditions
When the capacitor above only has a voltage of 190 V or less.
Supposed
Causes
Power supply insufficient
Instantaneous failure
Open phase
Defect of inverter PC board
Defect of outdoor control PC board
Defect of K1M.
Main circuit wiring defect
To Next Page
Loading...
