Daikin R71FUV1 Service Manual page 430

Skyair series service diagnosis
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Troubleshooting by Remote Controller
A
The
U4
"
" code
blinks in the
remote controller of
the other unit in the
same refrigerant
circuit.
NO
YES
Si20-701_B
U4
Go on to the "
troubleshooting
U5
Go on to the "
troubleshooting
423
"
"

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