Daikin VRV IV+ Service Manual page 94

2 | Troubleshooting
2.3.76 J9-08-09-10 – Gas thermistor R6T abnormality
Service manual
94
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
Gas thermistor R6T after
subcool heat exchanger
short/open circuit.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check of the gas pipe thermistor of the subcool heat exchanger. See
"3.21 Thermistors" [
Possible cause: Faulty gas pipe thermistor of the subcool heat exchanger.
2 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
J9
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
Gas thermistor R6T after
subcool heat exchanger is
out of range.
Effect
Unit will stop operating.
4
348].
"3.11 Main
Sub error code
08
09
10
Effect
Unit will stop operating.
Reset
Manual reset via user
interface.
Automatic reset when
thermistor read-out is
within range.
4
PCB" [ 290].
Unit
Main
Sub 1
Sub 2
Reset
Manual reset via user
interface.
Automatic reset when
thermistor read-out is
within range.
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05