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Error Codes
Electronic Control Error Code Diagnostics and Test Mode
Error Code Diagnostics
corrected.
Error Codes and Alarm Status
Unit Control Panel
above these two digits indicate the current state of
display contains a maintenance icon (wrench) that will
illuminate to indicate when the unit needs maintenance.
Check Error Codes:
Clear History Counters:
Error
Problem
Code
2
3
5
Outdoor coil temperature sensor is open or shorted
6
7
minutes
8
Room freeze protection
Wall stat problem or connection issue
Not applicable
High pressure limit switch is open
Not applicable
Heat pump error
Not applicable
Not applicable
Not applicable
Not applicable
22
minutes
23
Not applicable
Not applicable
49-5000431 Rev. 1
Error State
Enter
Button
Action
Unit stops, open all relays until voltage is back within specs then resumes operation
tinue to operate.
outdoor temperature allows.
times, the severity is increased and the unit operation is locked out.
Only use if Electric Heat is available. Run High Speed and Electric Heat until room
Not applicable
Not applicable
electric heat to satisfy the heating demand.
error code will remain on until the temperature reaches the operating range and then the
unit will return to normal operation.
Not applicable
Not applicable
Not applicable
Not applicable
Unit will use electric heat to satisfy heating demands until the temperature equals or
Not applicable
Not applicable
Error
History
Code
Counter
OFF ON
ENTER
SCROLL
Maintenance
Required
Scroll
Button
-
-
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