Daikin VRV IV+ Service Manual page 25

2.3.6 E3-01-03-05 – Actuation of high pressure switch
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
INFORMATION
Main, Sub 1 and Sub 2 indications are relevant in multiple outdoor unit
configurations. Main outdoor unit is the unit to which F1‑F2 IN transmission line is
connected. Main, Sub 1 and Sub 2 outdoor units can be identified by field setting
1‑00.
Trigger
Main PCB detects open
circuit on connector
X101A.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check that connector X101A is correctly connected to the main PCB. See
4
"3.11 Main PCB" [
Possible cause: Open circuit on connector X101A.
2 Perform a check of the current sensor. See
Possible cause: Faulty current sensor.
3 Perform a check of the main PCB. See
Possible cause: Faulty main PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Main error code
E3
INFORMATION
Main, Sub 1 and Sub 2 indications are relevant in multiple outdoor unit
configurations. Main outdoor unit is the unit to which F1‑F2 IN transmission line is
connected. Main, Sub 1 and Sub 2 outdoor units can be identified by field setting
1‑00.
Effect
Unit will stop operating.
290].
"3.11 Main
Sub error code
01
03
05
2 Troubleshooting
|
Reset
Manual reset via user
interface.
4
"3.5 Current sensor" [ 237].
4
PCB" [ 290].
Unit
Main
Sub 1
Sub 2
Service manual
25