Daikin VRV IV+ Service Manual page 85

2.3.64 J3-59-60-61 – Discharge thermistor crosswired
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check
"3.21 Thermistors" [
Possible cause: Faulty discharge pipe thermistor or connector fault.
2 Perform a check of the lower heat exchanger expansion valve. See
"3.7 Expansion valve" [
Possible cause: Faulty lower heat exchanger expansion valve.
3 Perform a check of the upper heat exchanger expansion valve. See
"3.7 Expansion valve" [
Possible cause: Faulty upper heat exchanger expansion valve.
4 Perform a check of the subcool expansion valve. See
4
valve" [ 244].
Possible cause: Faulty subcool expansion valve.
5 Perform a check of the expansion valve(s) of the indoor unit(s). See service
manual of the respective indoor unit(s) for more information.
Possible cause: Faulty indoor unit expansion valve.
6 Perform a check of the main PCB. See
Possible cause: Faulty main PCB.
7 Check if the refrigerant circuit is correctly charged. See
4
circuit" [ 363].
Possible cause: Refrigerant shortage.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Main error code
J3
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.
of the discharge
4
348].
4
244].
4
244].
"3.11 Main
Sub error code
59
60
61
2 Troubleshooting
|
pipe thermistor.
"3.7 Expansion
4
PCB" [ 290].
"4.2 Refrigerant
Unit
Main
Sub 1
Sub 2
Service manual
See
85