18
IOM-T-560 2145
© 2021 tekmar
Description
MEMORY ERROR
The thermostat memory settings are corrupted. To clear, load the factory defaults in the Toolbox
menu. The thermostat will not operate any heating equipment while this error message is present.
INTERNAL ROOM SENSOR FAULT
Due to an open or short circuit, the thermostat is unable to read the internal room temperature sen-
sor. If sensor 1 or 2 is set to room the thermostat continues to operate, otherwise operation stops.
The error cannot be field repaired. Contact your tekmar sales representative for warranty or repair
procedures.
SENSOR 1 FAULT
Due to an open or short circuit, the thermostat is unable to read the sensor wired to S1 and Com.
The thermostat stops normal operation if sensor 1 is the only active room or floor sensor or if a floor
maximum temperature has been set.
Check the auxiliary sensor wire for short circuits according to the sensor installation manual. It may
be necessary to replace the auxiliary sensor. Once the error has been corrected, the error message
automatically clears.
SENSOR 2 FAULT
Due to an open or short circuit, the thermostat is unable to read the sensor wired to S2 and Com.
The thermostat stops normal operation if sensor 2 is the only active room or floor sensor or if a floor
maximum temperature has been set.
Check the auxiliary sensor wire for short circuits according to the sensor installation manual. It may
be necessary to replace the auxiliary sensor. Once the error has been corrected, the error message
automatically clears.
ROOM HOT WARNING
The room temperature is above the Room Hot Warning setting in the Alerts menu. The warning will
automatically clear once the room temperature falls below the setting.
ROOM COLD WARNING
The room temperature is below the Room Cold Warning setting in the Alerts menu. The warning will
automatically clear once the room temperature rises above the setting.
Error icon will appear on the home screen when an error is present.
Error Messages