Inverter Unit Refrigerant System Check; Rotation Pulse Check On The Outdoor Unit Pcb - Daikin CTX Series Service Manual

Actuator Check
5.5

Inverter Unit Refrigerant System Check

Check No.14
5.6

Rotation Pulse Check on the Outdoor Unit PCB

Check No.16
Outdoor fan motor.
Check if the sinusoidal voltage is generated between pins 1 -3 and 3 - 5 when the fan motor is
manually rotated once.
88
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Caution
Refrigerant system check
Is the discharge pipe
thermistor disconnected from
the holder?
NO
Check for refrigerant leakage.
See the section on refrigerant
shortage detection.
PCB
S70
5
Free
4
3
2
Free
1
YES
Phase W
Phase V
Phase U
Applicable for CTX07/09/12
DAMA-SM-21-003
Reconnect the thermistor.
Replace the refrigerant.
(R24900)
Service Diagnosis