I have a master temp 300 when I apply power it says on the display screen 128 then flashes are 13 then flashes the temperature of 85°, then for a second or two service heater and heating light come on immediately shuts off
On the control panel in my house it says flush with shorted on this unit I don't find a pressure / water flow switch but I do see an air flow switch round pneumatically actuated switch from the blower unit it is supposed to be on/shorted when it senses the correct pressure at the inlet of the blower when I cycle power it repeatedly does the same thing
On the control panel in my house it says flush with shorted on this unit I don't find a pressure / water flow switch but I do see an air flow switch round pneumatically actuated switch from the blower unit it is supposed to be on/shorted when it senses the correct pressure at the inlet of the blower when I cycle power it repeatedly does the same thing
