tekmar 654 Snow Melting Control Installation - Manual (Page 40)

© 2013 654_D - 06/13 40 of 44
Error Message Description
BOILER RETURN SENSOR SHORT CIRCUIT ERROR
Due to a short circuit, the control is unable to read the Boiler Return Sensor 082. The control continues
operation but does not provide any boiler return protection.
Check the boiler return sensor wire for short circuits according to the sensor installation manual. It may
be necessary to replace the boiler return sensor. Once the error has been corrected, the error message
automatically clears.
BOILER RETURN SENSOR OPEN CIRCUIT ERROR
Due to an open circuit, the control is unable to read the Boiler Return Sensor 082. The control continues
operation but does not provide any boiler return protection.
Check the boiler return sensor wire for open circuits according to the sensor installation manual. It may
be necessary to replace the boiler return sensor. Once the error has been corrected, the error message
automatically clears.
SLAB SENSOR SHORT CIRCUIT ERROR
Due to a short circuit, the control is unable to read the Slab Sensor 072 or 073. Idling and Storm are
disabled and energy saving features such as Warm Weather Shut Down (WWSD) and Cold Weather
Cut Out (CWCO) are operate using the outdoor temperature only.
Check the slab sensor wire for short circuits according to the sensor installation manual. It may be
necessary to replace the slab sensor. Once the error has been corrected, the error message automatically
clears.
SLAB SENSOR OPEN CIRCUIT ERROR
Due to an open circuit, the control is unable to read the Slab Sensor 072 or 073. Idling and Storm are
disabled and energy saving features such as Warm Weather Shut Down (WWSD) and Cold Weather
Cut Out (CWCO) are operate using the outdoor temperature only.
Check the slab sensor wire for open circuits according to the sensor installation manual. It may be
necessary to replace the slab sensor. Once the error has been corrected, the error message automatically
clears.
If the slab sensor has been intentionally removed, set the slab sensor setting in the System menu to
Off.
YELLOW WIRE OPEN CIRCUIT ERROR
Due to an open circuit, the control is unable to read the yellow wire connected to the Snow / Ice Sensor
090 or 094, or the Snow Sensor 095. The control can no longer automatically detect snow or ice but
manual start of the snow melting system is still available.
Check the Snow / Ice Sensor or Snow Sensor yellow and black wires and any wire splices for open
circuits according to the sensor installation manual. It may be necessary to replace the sensor. Once
the error has been corrected, the error message automatically clears.
BLUE WIRE SHORT CIRCUIT ERROR
Due to a short circuit, the control is unable to read the blue wire connected to the Snow / Ice Sensor
090 or 094, or the Snow Sensor 095. The control can no longer automatically detect snow or ice but
manual start of the snow melting system is still available.
First check the Snow / Ice Sensor or Snow Sensor for dirt or debris. The ring structure of the sensor
may need cleaning with hot soapy water and a nylon brush. Rinse with water. Secondly, check the Snow
/ Ice Sensor or Snow Sensor blue and black wires and any wire splices for short circuits according to
the sensor installation manual. It may be necessary to replace the sensor. Once the error has been
corrected, the error message automatically clears.
BLUE WIRE OPEN CIRCUIT ERROR
Due to an open circuit, the control is unable to read the blue wire connected to the Snow / Ice Sensor
090 or 094, or the Snow Sensor 095. The control can no longer automatically detect snow or ice but
manual start of the snow melting system is still available.
Check the Snow / Ice Sensor or Snow Sensor blue and black wires and any wire splices for open circuits
according to the sensor installation manual. It may be necessary to replace the sensor. Once the error
has been corrected, the error message automatically clears.
BROWN WIRE SENSOR OPEN CIRCUIT ERROR
Due to an open circuit, the control is unable to read the brown wire connected to the Snow / Ice Sensor
090 or 094. Idling and Storm is disabled and energy saving features such as Warm Weather Shut Down
(WWSD) and Cold Weather Cut Out (CWCO) are operate using the outdoor temperature only.
Check the Snow / Ice Sensor brown and black wires for open circuits according to the sensor installation
manual. It may be necessary to replace the sensor. Once the error has been corrected, the error message
automatically clears.
Error Messages (3 of 4)