Water Heater Pressure Switch Problem

Too small water distribution lines and too many sharp bends between the hot water heater.

Water heater pressure switch problem.

Because most people will deal with pressure switches in their air conditioner systems a common problem that comes from a bad pressure switch is when your air conditioner is frequently cutting off tries to start again or doesn t work at all. One of those is your shut off valve. If the shut off valve leading to the water heater is partially closed water pressure from the unit drops. The most common reasons for replacing the pressure switch are when the water heater won t light or won t heat.

If the pump is not creating enough pressure to signal the switch to turn off it is possible the pump could need to be replaced. This video provides step by step repair instructions for replacing the pressure switch on an ao smith gas water heater. As the air flows through the draft inducer assembly it closes a vacuum switch to signal that proper air flow is present. Switch won t turn on.

If your switch won t turn on this could be a sign your tank pressure is above your switch s cut in pressure. All of the information for this pressure switch replacement video is applicable to the following brands. Verify that your pump is creating enough pressure to signal the pressure switch to turn off. You can also try gently tapping on the pressure gauge the switch and the tank.

Try running some water elsewhere in the building to reduce pressure below the cut in level. The draft inducer fan motor draws air into the burner and then exhausts it out the flue. Loosen the locking nut and using quarter turn increments turn the screw counter clockwise to the left to decrease water pressure and clockwise to the right to increase water pressure. The regulator will have a screw or bolt and a locking nut system.

Pressure switch not turning off. Your shut off valve is.