Daikin EBLA11DAV3 - Repair Procedures; Refrigerant Pressure Sensor; Checking Procedures

3 | Components
Service manual
244
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
5 Measure the inductance of the reactor using an LCR meter.
Result: The inductance MUST be as follows:
Measuring points Inductance
d‑e 104~116µH
Is the inductance measurement
correct?
Action
Yes Return to the troubleshooting of the
specific error and continue with the
next step.
No Replace the reactor, see "3.18.2Repair
procedures"[4244].
3.18.2 Repair procedures
As the reactors are part of the main PCB, replace the complete main PCB. See
"3.14Main PCB"[4171].
3.19 Refrigerant pressure sensor
3.19.1 Checking procedures
To perform an electrical check of the refrigerant pressure sensor
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see "3.17Plate work"[4230].
1 Turn ON the power of the unit.
2 Connect a pressure gauge to the gas service port. Read the pressure.
3 Using the graphic below, determine the expected sensor output voltage based
on the pressure obtained in the previous step.
-0.5
-0.5 0 0.5 1 1.5 2 2.5 3 3.5 4
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
a
b