Daikin Aurora Series, Руководство по обслуживанию

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Troubleshooting by Error Code SiUS341802E
221 Service Diagnosis
Troubleshooting
Note:
∗
1. Thermistors
Refer to page 285.
Refer to page 294.
NO
Is the
“temperature”
checked by the
Service Checker same as
the measurement of the
temperature?
NO
Replace the relevant thermistor.
Replace the outdoor unit main
PCB (A1P).
YES
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.”)
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?
(
∗
1)
• All thermistors are normal, and temperature detection
with the control PCB is also normal.
• The discharge pipe temperature (or compressor surface
temperature) has really become high.
CHECK 3 : Eliminate the causes of superheat operation.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Applicable Thermistor Electric symbol Connector
Discharge pipe thermistor for M1C R21T
X19A
(Group connector)
Compressor body thermistor R14T
CHECK 3
CHECK 11