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Error Message
Description
SETUP MENU SAVE ERROR
The thermostat failed to read the Programmable Settings from memory
and has reloaded the factory default settings. The thermostat stops
normal operation until all Programmable Settings are checked except
to provide freeze protection.
Room
ROOM SENSOR OPEN CIRCUIT ERROR
The built-in air temperature sensor has an open circuit fault. Do not
confuse this error with the auxiliary room sensor short circuit error.
This error cannot be field repaired. Contact your wholesaler or MrPEX
Systems sales representative for details on repair procedures.
Room
ROOM SENSOR SHORT CIRCUIT ERROR
The built-in air temperature sensor has a short circuit fault. Do not
confuse this error with the auxiliary room sensor short circuit error.
This error cannot be field repaired. Contact your wholesaler or MrPEX
Systems sales representative for details on repair procedures.
AUxILIARy SENSOR OPEN CIRCUIT ERROR
The auxiliary sensor has an open circuit. Check for loose or damaged
wires. Locate and repair the problem as described in the Sensor
Testing section of this brochure. The error clears after the auxiliary
sensor fault is corrected. If the auxiliary sensor was intentionally
removed, power the thermostat down and up to clear the error.
AUxILIARy SENSOR SHORT CIRCUIT ERROR
The auxiliary sensor has a short circuit. Check for damaged wires.
Locate and repair the problem as described in the Sensor Testing
section of this brochure. The error clears after the auxiliary sensor
fault is corrected.
Troubleshooting
Error Messages