Malfunction Of System - Daikin Emura RXJ20A5V1B Service Manual

3 | Troubleshooting
3.5.35 UH-00 – Malfunction of system
Service manual
44
Trigger
In case of connection with
multi indoor units, when
error UA, U0 or A5 occurs
in other indoor unit.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check all other indoor units for the following error codes. If found, see
"3.5 Error based troubleshooting" [
▪ A5-00 – Outdoor unit: High pressure peak cut / freeze protection problem
▪ U0-00 – Outdoor unit: Shortage of refrigerant
▪ UA-00 – Indoor unit, outdoor unit mismatching problem
Possible cause: Error on other indoor unit.
2 Perform a check of the indoor unit main PCB. See
4
PCB" [ 103].
Possible cause: Faulty indoor unit main PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Effect
Unit will stop operating.
4
19] to solve the specific error.
Reset
Auto reset.
"4.9 Indoor unit main
RXJ20~50A + FTXJ-A(W)(S)(B)
Split Emura 3 R32
ESIE22-04B – 2022.08