Uh" Malfunction Of System, Refrigerant System Address Undefined - Daikin RTSQ20PY1 Service Manual

Troubleshooting by Indication on the Remote Controller
UH
4.57 " " Malfunction of System, Refrigerant System
Address Undefined
UH
Remote
Controller
Display
Applicable All models of indoor units
RTSQ8P~16P (Outdoor Unit)
Models
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
321
Improper connection of transmission wiring between indoor-outdoor units and outdoor-
outdoor units
Defect of indoor unit PCB
Defect of outdoor unit main PCB (A1P or A3P)
SiBE31-801_C
Troubleshooting