Daikin VRV IV+ Service Manual page 179

2.3.187 UA-39 – Combination abnormality - Incorrect combination
2.3.188 UA-43 – Combination abnormality - Incorrect combination
2.3.189 UA-49 – Combination abnormality - Wrong unit combination
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Main PCB on main
outdoor unit detects
compatibility issues.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check for improper combination of units. See the combination table in the
Databook for more information. Change the installation with ONLY compatible
type units.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Main PCB on main
outdoor unit detects
compatibility issues.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check for improper combination of units. See the combination table in the
Databook for more information. Change the installation with ONLY compatible
type units.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Main PCB on main
outdoor unit detects
compatibility issues.
Effect
Forced stop.
Effect
Forced stop.
Effect
Forced stop.
2 Troubleshooting
|
Reset
Automatic reset after re-
initialization detects
compatible units.
Reset
Automatic reset after re-
initialization detects
compatible units.
Reset
Automatic reset after re-
initialization detects
compatible units.
Service manual
179