Water Furnace Thermostat Flashing Fault

The light will come on if the temperature is above 130 f 54 c.

Water furnace thermostat flashing fault.

On the face of the unit proper the 2nd led water flow read more. If 3 consecutive faults occur without satisfying the thermostat. 3 programmed fan fan follows the program set in the program menu screen programmable models only pg. If the light remains continuously on or off call your waterfurnace dealer.

I came home from travels tonight to find fault and the set temperature blinking on the thermostats for my 5 yr old envision series ndv049. Fault flash faults are communicated via light flash. Almost all waterfurnace thermostats support programmable schedules. Cooling mode about your waterfurnace system cooling mode during cooling a geothermal system rejects the heat from the indoor air into the earth loop.

The heating cycle starts as cold liquid refrigerant passes through the water to refrigerant heat exchanger coax and also the evaporator during heating. Fault retry in the fault condition the control will stage off the outputs and then try again to satisfy the thermostat y input call. Once the thermostat input calls are satisfied the control will continue on as if no fault occurred. If you are already in a heating or cooling mode then skip to step 5.

All support 3 heating and 2 cooling stages and auto changeover. Before you can adjust the temperature a mode must be selected. The fault light has come on my geothermal water furnace system. Turn off all power to the unit including auxiliary heat and then turn it back on.

Thermostat operation adjusting temperature temporary override in programmable models 1. Dual fuel thermostat automatically switches from geothermal to a supplemental heating source if needed. 2 08 05 8 45 am outdoor fan auto 33 heat stg 1 73 auto humidity setpoint 43. Auto on only during heating and cooling calls on always on intermittent cycles fan pg.

The light indicates it is a water flow problem. Dhw limit a sensor monitors the temperature of the water leaving the unit. Waterfurnace offers a wide range of thermostat options including communicating and programmable thermostats for the most temperature control possible.