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25
Error Messages
The control was unable to read a piece of information stored in its memory. Because of this, the
control was required to reload the factory settings into all of the items in the ADJUST menu. The
control will stop operation until all of the items in the ADJUST menu of the control have been
checked by the user or installer.
Note: The Installer / Adv DIP Switch must be set to Adv in order to clear the error.
The control is no longer able to read the outdoor sensor due to a short circuit. In this case the
control assumes an outdoor temperature of 32˚F (0˚C) and continues operation. Locate and repair
the problem. To clear the error message from the control after the sensor has been repaired, press
either the Menu or Item button.
This error message only occurs if the External Input/Stand Alone DIP switch is set to Stand Alone.
The control is no longer able to read the outdoor sensor due to an open circuit. In this case the
control assumes an outdoor temperature of 32˚F (0˚C) and continues operation. Locate and repair
the problem. To clear the error message from the control after the sensor has been repaired, press
either the Menu or Item button.
This error message only occurs if the External Input/Stand Alone DIP switch is set to Stand Alone.
The control is no longer able to read the boiler supply sensor due to a short circuit. The control will
not operate the boiler(s) until the sensor is repaired. Locate and repair the problem. To clear the
error message from the control after the sensor has been repaired, press either the Menu or Item
button.
The control is no longer able to read the boiler supply sensor due to an open circuit. The control
will not operate the boiler(s) until the sensor is repaired. Locate and repair the problem. To clear
the error message from the control after the sensor has been repaired, press either the Menu or
Item button.
The control is no longer able to read the boiler return sensor due to a short circuit. The control will
continue to operate normally. Locate and repair the problem. To clear the error message from the
control after the sensor has been repaired, press either the Menu or Item button.
The control is no longer able to read the boiler return sensor due to an open circuit. The control
will continue to operate normally. Locate and repair the problem. To clear the error message from
the control after the sensor has been repaired, press either the Menu or Item button.
If the boiler return sensor was deliberately removed from the control, remove power from the con-
trol and repower the control to clear the error message.
SC-3 Controller
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