tekmar 374 Universal Reset Control - Manual (Page 35)

35 of 36 © 2009 D 374 - 03/09
Error Messages (2 of 2)
The control is no longer able to read the boiler sensor due to an open circuit. When there is a demand, the
control will not control the boiler(s), but will provide a boiler enable to the boiler’s aquastat or boiler control
until the sensor is repaired. The control will not operate the boiler contact if the Boil Minimum setting is
less than 100°F (38°C). Locate and repair the problem as described in the Data Brochure D 070. To clear
the error message from the control after the sensor has been repaired, press any button.
If the Boiler Sensor has been intentionally removed, the Boiler Sensor Return / Supply DIP switch
should be set to Return, and the control must be powered down and then re-powered.
The control has an internal sensor that monitors the temperature inside the enclosure. The internal
sensor has a short circuit that is not field repairable. Contact your tekmar sales representative for
details on the repair procedures if this error occurs.
Note: The control will continue to operate normally with this error present
The control has an internal sensor that monitors the temperature inside the enclosure. The internal
sensor has an open circuit that is not field repairable. Contact your tekmar sales representative for
details on the repair procedures if this error occurs.
Note: The control will continue to operate normally with this error present.
The control has an internal sensor that monitors the temperature inside the enclosure. The internal
temperature of the control is too hot. The control will shut off both variable speed outputs until the
control has cooled off. Make sure the ambient temperature is less than 120°F (50°C). To clear the error
message from the control after the control has cooled off, press any button.