Daikin VRV EMERION RXYQ-AATJA Service Manual page 320

Troubleshooting by Error Code
Troubleshooting
Reference
CHECK 3 Refer to page 374.
Reference
CHECK 11 Refer to page 381.
313
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Connect the Service Checker.
Reset the system operation,
and then restart it.
CHECK 11
Are the
characteristics of the
discharge pipe and
compressor surface
temperature
thermistors
normal?
YES
Service Checker
Connect the Service Checker, and then make a
comparison between discharge pipe temperature (or
compressor surface temperature and low pressure
checked by the Service Checker and the
measurements of discharge pipe surface temperature
(or compressor surface temperature.)
Is the
temperature
checked by the
Service Checker same as the
measurement of the
temperature?
YES
• All thermistors are normal, and temperature detection
with the outdoor unit main PCB is also normal.
• The discharge pipe temperature (or compressor surface
temperature) has really become high.
CHECK 3 : Eliminate the causes of superheat operation.
NO
NO
SiUS342303E
Replace the relevant thermistor.
Replace the outdoor unit main
PCB (A1P).
Part 6 Service Diagnosis