tekmar 552 Thermostat Installation - Manual (Page 39)

© 2014 552_D - 09/14
39 of 44 A Watts Water Technologies Company
Error Message Description
ROOM SENSOR SHORT CIRCUIT ERROR
Due to a short circuit, the thermostat is unable to read the built-
in room temperature sensor. If Sensor 1 or 2 is set to Room, or
the thermostat is connected to a tekmarNet
® system control, the
thermostat continues to operate, otherwise operation stops.
The error cannot be field repaired. Contact your tekmar
® sales
representative for repair procedures.
ROOM SENSOR OPEN CIRCUIT ERROR
Due to an open circuit, the thermostat is unable to read the built-
in room temperature sensor. If Sensor 1 or 2 is set to Room, or
the thermostat is connected to a tekmarNet
® system control, the
thermostat continues to operate, otherwise operation stops.
The error cannot be field repaired. Contact your tekmar
® sales
representative for repair procedures.
SENSOR 1 SHORT CIRCUIT ERROR
Due to a short circuit, the thermostat is unable to read auxiliary
Sensor 1. 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 1 OPEN CIRCUIT ERROR
Due to an open circuit, the thermostat is unable to read auxiliary
Sensor 1. 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.
If the auxiliary sensor 1 has been intentionally removed, set the
Sensor 1 setting in the Setup menu to Off.
SENSOR 2 SHORT CIRCUIT ERROR
Due to a short circuit, the thermostat is unable to read auxiliary
Sensor 2. 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.
Error Messages (3 of 5)