Brivis Error Code 35 Supply Air Thermistor Fault: The supply-air thermistor has been detected as either open or short circuited for at least the supply-air thermistor fault time.
For Heater Repair Tech Only
Reason: No_S-A_THM means the thermistor circuit is open circuit, and the NG-2 has not received the supply air thermistor sensor signal. Operation Mode: The heater still operates with this error present, though the operation does not give the maximum or best performance. The fan will be timed ON and OFF, operated at the installer set RPM, and the gas valve will be force to the minimum rate. The fan ON time = 45 seconds from when the gas valve is energised at the start of the heating cycle. The fan OFF time = 60 seconds from when the gas valve closes at the end of the heating cycle. Service Check List: • Check the supply air thermistor has been installed, and that the loom and/or plug have been connected to the thermistor. • Check the supply air thermistor wire loom has not been damaged. • Check the thermistor is not faulty, check that the resistance is approx 10 kΩ @ 20oC.