Uh Malfunction Of System, Refrigerant System Address Undefined - Daikin RXYQ96PYDN Service Manual

Troubleshooting by Indication on the Remote Controller
UH
3.57 Malfunction of System, Refrigerant System Address
Undefined
UH
Remote
Controller
Display
Applicable
All models of indoor units
Models RXYQ72P~240PYDN, PTJU
REYQ72P~240PYDN, PTJU
Method of Detect an indoor unit with no address setting.
Malfunction
Detection
Malfunction The malfunction decision is made as soon as the abnormality aforementioned is detected.
Decision
Conditions
Supposed
Causes
444
Improper connection of transmission wiring between indoor-outdoor units and outdoor-outdoor
units
Defect of indoor unit PC board
Defect of outdoor unit main PC board (A1P or A3P)
SiUS34-801A_b
Troubleshooting