Equipment Does Not Operate - Daikin Skyair FHC35K Service Manual

Troubleshooting Based on Equipment Condition
3.2

Equipment does not Operate

Applicable Model
All models of Skyair series
Error Detection
Method
Error Generating
Condition
„ Fuse blown or disorder of contact in operation circuit
Possible Causes
„ Faulty operation switch or contact point
„ Faulty high pressure switch
„ Faulty magnetic switch for fan motor
„ Activation or fault of overcurrent relay for fan motor
„ Faulty overcurrent relay for compressor
„ Faulty compressor protection thermostat
„ Insufficient insulation in electric system
„ Faulty contact point of magnetic switch for compressor
„ Malfunction of compressor
Troubleshooting
82
switch OFF or fuse
for remote switch
Is operation
YES
switch pressed
repeatedly?
NO
Is thermostat
YES
changed and reset
again?
NO
Is outdoor
unit operating in
NO
individual operation
mode?
YES
Is equipment
YES
in automatic
operation?
NO
Does remote
controller indicate
YES
"other unit in cooling
operation" or "other
unit in heating
operation"?
NO
Is power
YES
blown?
NO
Is there
YES
power outage?
NO
Is operation
YES
lamp on LCD
remote controller
flashing?
NO
Wireless
remote controller
Is operation lamp YES
on indoor unit signal
receiving section
flashing?
NO
Possibly faulty electric
component
Previous operation
mode is still in effect.
Not all units are in the
same operation mode.
Si-71A
Turn on power switch or replace fuse.
Wait until power returns.
Normal. Equipment starts operation 3
minutes later (3-min standby).
Diagnose based on error code on
remote controller.
Normal. Equipment starts operation 3
minutes later (3-min standby).
Diagnose based on error code on
remote controller.
Check electric system.
Normal.
Normal. Set units to the same
operation mode.
(SF031)
Troubleshooting