Daikin altherma 3 M Service Manual page 258

3 | Components
Repair procedures
To remove the thermistor
Service manual
258
Does the measured resistance of the
thermistor match with the
temperature determined resistance?
No
For thermistors connected to an intermediate connector
Does the measured resistance of the
thermistor match with the
temperature determined resistance?
Yes
No
7 Disconnect the thermistor from the intermediate connector and measure the
resistance of the thermistor (between the appropriate pins of the connector).
Does the measured resistance of the
thermistor match with the
temperature determined resistance?
Yes
No
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
1 Locate the thermistor that needs to be removed.
2 Cut the tie straps that fix the insulation and the thermistor wire.
a
a
Then
Replace the specific thermistor, see
"Repair procedures" [
Action
Thermistor is OK. Return to the
troubleshooting of the specific error
and continue with the next procedure.
Continue with the next step.
Action
Correct the wiring between the
thermistor connector on the PCB and
the intermediate connector, see
"6.2 Wiring
Replace the specific thermistor, see
"Repair procedures" [
"3.17 Plate
c b
4
258].
4
diagram" [ 314].
4
258].
4
work" [ 230].
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03