P1" Outdoor Unit: Inverter Over-Ripple Protection - Daikin RTSQ20PY1 Service Manual

SiBE31-801_C
P1
4.41 " " Outdoor Unit: Inverter Over-Ripple Protection
P1
Remote
Controller
Display
Applicable RTSQ8P~16P (Outdoor Unit), BTSQ20P (Function Unit)
Models
Method of Imbalance in supply voltage is detected in PCB.
Malfunction
Detection
Malfunction When the resistance value of thermistor becomes a value equivalent to open or short circuited
status.
Decision
★
Conditions
Supposed
Causes
Troubleshooting
Malfunction is not decided while the unit operation is continued.
P1
" " will be displayed by pressing the inspection button.
Open phase
Voltage imbalance between phases
Defect of main circuit capacitor
Defect of inverter PCB
Defect of K2 relay in inverter PCB
Improper main circuit wiring
Troubleshooting by Indication on the Remote Controller
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