Capacitor Voltage Check; Inverter Units Refrigerant System Check - Daikin F-Series Service Manual

Check

5.1.10 Inverter Units Refrigerant System Check

Check No.11

5.1.11 Capacitor Voltage Check

Check No.12 Before this checking, be sure to check the main circuit for short-circuit.
" Checking the capacitor voltage
! With the circuit breaker still on, measure the voltage according to the drawing. Be careful
152
Refrigerant system check
Is the
discharge
thermister disconnected
from the
ho
NO
Is the
temperature of
the four way valve suction
pipe abnormaly
high?
NO
Is any
moisture found in sight
glass?
NO
Check for gas leaks.
See the section on insufficient gas
detection.
never to touch any live parts.
DB1
LED5
S90
Thermistor
lead wire
YES
YES
YES
Conduct the check after operating the
equipment for a sufficient length of time.
LED A
S70 S80
Fan motor
Four way valve
lead wire lead wire
SiEN12-710A
Correct the problem.
Four way valve defective.
Replace the four way valve.
Conduct vacuum drying.
Replace the refrigerant.
(R7160)
Multi meter
(DC. voltage
range)
S20
Electronic
expansion
valve coil
(R6027)
Service Diagnosis