Other Thermistors - Daikin altherma 3 M Service Manual

3.20.3 Other thermistors

Checking procedures
To perform a mechanical check of the external thermistor
To perform an electrical check of the external thermistor
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
WARNING
When reconnecting a connector to the PCB, make sure to connect it on the correct
location and do NOT apply force, as this may damage the connector or connector
pins of the PCB.
Is the problem solved?
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.
2 Remove the insulation if needed. Check that the thermistor is correctly
installed and that there is thermal contact between the thermistor and the
piping or ambient.
Is the thermistor correctly installed
(thermal contact between the
thermistor and the piping or ambient)?
Yes
No
Prerequisite: First perform a mechanical check of the thermistor, see
4
procedures" [ 261].
1 Locate the thermistor:
INFORMATION
Remove the thermistor from its holder if not reachable with a contact thermometer.
2 Measure the temperature using a contact thermometer.
Name Symbol
External R6T
indoor or
outdoor
ambient
thermistor
Action
No further actions required.
Return to the troubleshooting of the
specific error and continue with the
next procedure.
"3.17 Plate
Action
Perform an electrical check of the
specific thermistor, see
procedures" [
Correctly install the thermistor, see
"Repair procedures" [
Location Connector
(PCB) (pins)
Hydro X22A: 1‑2
3 Components
|
4
work" [ 230].
"Checking
4
261].
4
266].
"Checking
Unit Referen
terminal ce
(wires) (table)
X5M: 8-7 A
Service manual
261