Boiler out
The control is no longer able to read the boiler supply sensor due to an open circuit. If the boiler inlet sensor is present and operational, the boiler will continue to operate using the boiler inlet sensor.
Boiler in
The control is no longer able to read the boiler return sensor due to an open circuit. The boiler will continue to operate.
Boilsup
The control is no longer able to read the system supply sensor due to an open circuit. If the boiler outlet sensor is present and operational, the control will operate based on the boiler outlet sensor.
Outdr
The control is no longer able to read the outdoor sensor due to an open circuit. The boiler will continue to operate based on an assumed outdoor temperature of 32ºF (0ºC).
Boiler out
Check the wiring to the boiler supply sensor. If no problem is found, replace the sensor.
Boiler in
Check the wiring to the boiler supply sensor. If no problem is found, replace the sensor.
Boilersup
Check the wiring to the boiler supply sensor. If no problem is found, replace the sensor.
Outdr
Check the wiring to the boiler supply sensor. If no problem is found, replace the sensor.
