tekmar 157 Difference Setpoint Control - Manual (Page 15)

15 of 16 © 2010 D 157 - 06/10
Error Messages
EEPROM READ ERROR
The control was unable to read a piece of information from its EEPROM. This error can be
caused by a noisy power source. The control will load the factory defaults and stop operation
until all the settings are verified. To clear, view all items in the ADJUST menu.
STORAGE SENSOR ERROR
The control is no longer able to read the Storage Sensor due to an open or short circuit.
Locate and repair the problem as described in the Data Brochure D 070. The relays will
remain off until the error is cleared and the 5 minute minimum off time has elapsed.
SOURCE SENSOR ERROR
The control is no longer able to read the Source Sensor due to an open or short circuit.
Locate and repair the problem as described in the Data Brochure D 085. The relays will
remain off until the error is cleared and the 5 minute minimum off time has elapsed. If freeze
protection is enabled, the relays will remain on as a fail safe.
AUXILIARY SENSOR ERROR
The control is no longer able to read the Auxiliary Sensor due to an open or short circuit.
Locate and repair the problem as described in the Data Brochure D 070. The relays will
remain off until the error is cleared. If the sensor was connected then deliberately removed
after power up, power cycle the control to clear the error.
All errors are latching. If the error condition has been repaired, the control will continue to operate normally. The error
message can be manually cleared by pressing the item button.