Damper Motor - Daikin VAM 500EJ Service Manual

Si-93

1.19 Damper Motor

Error Detection
Check damper motor and limit switch when damper motor does not operate.
Method
Error Generating
Conditions
Possible Causes
Troubleshooting
Check resistance and voltage — DAMPER MOTOR
Troubleshooting
Place tester probes
at connectors of limit
switch, and check
continuity while
moving switch by
hand.
Is
measured
value 0 Ω
NO
when limit switch
turns on, and
infinity when
it turns
off?
YES
Place tester probes
on connectors of
damper motor and
check resistance.
Is
measured
NO
value of EJ type
approx. 17 kΩ?
YES
Damper motor is
normal.
Troubleshooting
Limit switch is faulty.
Damper motor is faulty.
(HF017)
(HL038)
49