Uf Mis-Connection Of Field Wiring - Daikin R71FUV1 Service Manual

Troubleshooting by Remote Controller
UF
3.105
Wiring
Remote Controller Display
UF
Applicable Models
Cooling Only model
R-FU
Method of Error Detection
Judgement by circuit of the PCB to detect wrong wiring.
Supposed Causes
Power supply wiring is broken or disconnected.
Mis-connection of field wiring
Troubleshooting
Caution
Turn OFF the power
supply and turn the
power ON.
UF
Is "
displayed on the
remote controller?
YES
Mis-connection of Field
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
"
NO
Si20-701_B
External factor
(Noise, etc.)
Connect field
wiring exactly.
447