Anti-Icing Function In Other Rooms / Unspecified Voltage (Between Indoor And Outdoor Units); Voltage (Between Indoor And Outdoor Units) - Daikin F-Series Service Manual

Troubleshooting
4.23 Anti-icing Function in Other Rooms / Unspecified

Voltage (between Indoor and Outdoor Units)

UA, UH
Remote Control
Display
Method of
A wrong connection is detected by checking the combination of indoor and outdoor units on the
Malfunction microcomputer.
Detection
Malfunction " Operation halt due to the anti-icing function in other rooms
Decision " Operation halt due to unspecified voltage between indoor and outdoor units
Conditions
Supposed
" Operation halt due to the anti-icing function in other rooms
Causes " Wrong connections at the indoor unit
" PCB wrongly connected
Troubleshooting
142
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Error-
displaying air-conditioner
running?
YES
Supply voltage as specified?
YES
Check the model number.
Normal?
YES
Check the combination of all the
models being connected.
NO
NO
NO
SiEN12-710A
The anti-icing function is
activated in other rooms.
Refer to A5.
Correct.
Reconnect.
(R7151)
Service Diagnosis