Troubleshooting by Error Code
4.56 Incorrect Gas Furnace Connecting Number
UA
Error Code
Applicable
CXTQ-TA
Models
Outline
Two or more "CXTQ + gas furnace" and other indoor units other than CXTQ are connected.
Error Decision
Check that two or more "CXTQ + gas furnace" and other indoor units other than CXTQ are not
Conditions
connected.
Operation After
Error Codes
Decided
233
The error code UA is displayed on the remote controller.
Change to be the system that one "CXTQ + gas furnace" and other indoor units other than
CXTQ are connected.
SiUS331708EA
Service Diagnosis