Daikin VAM350J8VEB, Руководство по обслуживанию

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3 | Troubleshooting
Service manual
42
VAM350~200 EKVDX32~100A2VEB
VRV system air conditioner
ESIE22-07 – 2022.02
3.2.30 CH-01 – R32 leak detection sensor failure or disconnected
EKVDX-A units
Trigger Effect Reset
The R32 sensor NOT
connected to indoor unit
main PCB. Unit will stop operating. Set field setting 25‑14‑01
to 02 on the remote
controller of the faulty
indoor unit.
R32 sensor PCB failure
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check wiring (insertion and continuity) on connector X41A on the indoor unit
main PCB and connector CN1 on the PCB of the R32 leak detection sensor. See
"5.2 Wiring diagram" [ 4 63].
Possible cause: Faulty or damaged wiring between indoor unit main PCB and
R32 leak detection sensor.
2 Check the error history for error code A0-11, see "3 Troubleshooting" [
4
19]. If
A0-11 is found, R32 leak detection sensor was replaced after this error and
power reconnected. Check if field setting 25-14=02. Correct if needed, see
"5.8 Field settings" [
4
83].
Possible cause: R32 leak detection sensor was replaced without adjusting
field setting 25-14.
3 Perform a check of the R32 leak detection sensor of the faulty indoor unit. See
R32 leak detection sensor.
Possible cause: Faulty R32 leak detection sensor.
4 Check if any external (foreign) vapor substance influenced the functioning of
the R32 leak detection sensor. Repair as needed.
Possible cause: External (foreign) vapor substance reacted with R32 leak
detection sensor.
5 Perform a check of the indoor unit main PCB. See Indoor unit PCB.
Possible cause: Faulty indoor unit main PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
draft – 07/02/2022 15:12