Daikin VRV IV+ Service Manual page 159

2.3.153 U3-07 – Transmission abnormality on test run
2.3.154 U3-08 – Transmission abnormality on test run
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
Trigger
Test run could NOT start
or abort due to
transmission issues.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check if communication between outdoor unit and indoor units is initialised.
Check field setting 1‑10 for count of indoor units, see
4
settings" [ 455]. If less indoor units shown than expected, communication
between 1 or more indoor unit(s) and outdoor unit is NOT correct. Check the
F1‑F2 transmission line between the indoor unit and outdoor unit, see
"4.1 Electrical circuit" [
Possible cause: Faulty or interruption in transmission line between indoor
units and outdoor unit.
2 Check the F1‑F2 transmission line between the indoor units and outdoor unit.
See "4.1 Electrical circuit" [
Possible cause: Faulty or interruption in transmission line between indoor
units and outdoor unit.
3 Perform a test run from the outdoor unit. See installer reference guide for
more information.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Test run could NOT start
or abort due to
transmission issues.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check if communication between outdoor unit and indoor units is initialised.
Check field setting 1‑10 for count of indoor units, see
4
settings" [ 455]. If less indoor units shown than expected, communication
between 1 or more indoor unit(s) and outdoor unit is NOT correct. Check the
F1‑F2 transmission line between the indoor unit and outdoor unit, see
"4.1 Electrical circuit" [
Possible cause: Faulty or interruption in transmission line between indoor
units and outdoor unit.
Effect
Unit will NOT operate.
4
356].
4
356].
Effect
Unit will NOT operate.
4
356].
2 Troubleshooting
|
Reset
Restart test run.
"6.9 Field
Reset
Restart test run.
"6.9 Field
Service manual
159