Daikin EBLA04E V Series Service Manual page 164

4 | Components
To perform an operation check of the expansion valve
Service manual
164
draft – 31/05/2022 15:53
▪ Connector pin 1‑5,
▪ Connector pin 2‑5,
▪ Connector pin 3‑5,
▪ Connector pin 4‑5.
a
1 2 3 4 5
a Connector
▪ Connector pin 1‑6,
▪ Connector pin 2‑6,
▪ Connector pin 3‑6,
▪ Connector pin 4‑6.
a
a Connector
3 Check the insulation resistance of the coil by measuring the resistance
between the pins of each phase (1, 2, 3, 4) and GND on the unit.
Result: None of the measurements should be short‑circuit.
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 measured resistance correct?
Yes
No
Prerequisite: First perform an electrical check of the expansion valve, see
"4.9.1 Checking procedures" [
1 Turn ON the power of the unit.
1
5
3
2 4
Action
Perform an operation check of the
expansion valve, see
procedures" [
Replace the expansion valve coil,
"4.9.2 Repair
4
162].
"4.9.1 Checking
4
162].
4
procedures" [ 166].
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05