Specifications

Troubleshooting by Indication on the Remote Controller SiUS39-602
192 Troubleshooting
2.55
“
UH
”
Malfunction of System, Refrigerant System Address
Undefined
Remote
Controller
Display
UH
Applicable
Models
All models of indoor units
REYQ72M, 96M
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes

Improper connection of transmission wiring between indoor-outdoor unit and outdoor-
outdoor unit

Defect of indoor unit PC board

Defect of outdoor unit PC board (A1P)