Specifications

Troubleshooting by Indication on the Remote Controller SiUS34-907
178 Troubleshooting
3.38 “U3” Check Operation is not Executed
Remote
Controller
Display
U3
Applicable
Models
RXYMQ36 · 48PVJU
Method of
Malfunction
Detection
Check operation is executed or not
Malfunction
Decision
Conditions
Malfunction is decided when the unit starts operation without check operation.
Supposed
Causes
 Check operation is not executed.
Troubleshooting
Press and hold BS4 on the
outdoor master PCB for 5
seconds or more, or turn ON the
local setting mode 2-3 to
conduct a check operation.
Has the
check operation
performed on Outdoor
unit PCB?
Performs the check operation
again and completes the check
operation.
When a leakage detection
function is needed, normal
operation of charging refrigerant
must be completed. Then
start once again and complete a
check operation.
NO
YES
Caution
Be sure to turn off the power switch before connecting or disconnecting the connector, or parts may be damaged.