Daikin VRV III, Руководство по обслуживанию, Страница: 388 / 567

SiUS34-801A_b Troubleshooting by Indication on the Remote Controller
Troubleshooting 373
Troubleshooting
∗
Refer to “Thermistor Resistance / Temperature Characteristics” table on P529.
NO
NO
Replace discharge pipe thermister.
Replace main PC board ( A1P).
Connect the service checker.
Press reset and start operation
again.
Check if
discharge pipe
thermister property is
normal.
(
∗
1)
Check if
temperature of
discharge pipe by using
service checker is the same with
actual measurement value
of discharge pipe
thermister.
YES
· Discharge pipe thermister is normal and the temperature
detection of the main PC board is also normal.
· Actually the temperature of discharge p ipe is high.
Check 3 Remove the factor of overheat operation
referring to P462.
Service Checker
Connect the service checker to compare the
temperature of discharge pipe by using service
checker with actual measurement value of discharge
pipe thermister (Refer to
∗
1).
∗
1: Compare the resistance value of discharge pipe thermister and the value based on the surface
thermometer.
(Refer to P532 for the temperature of thermister and the resistance property)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.