Water Heater Pressure Switch Failed Open

Water heaters ao smith water heater pressure circuit switch remaining open my husband and i got an ao smith 50 gal model gpvh 50 100 water heater installed a little over a year ago and have had.
Water heater pressure switch failed open. This video provides step by step repair instructions for replacing the pressure switch on an ao smith gas water heater. Step 2 inspect the pressure switch. The most common reasons for replacing the pressure switch are when the water heater won t light or won t heat. If the pressure reading reaches the activation pressure or is higher but the switch contacts did not close the switch is defective and must be replaced.
Ao water heater model gs650yrvit showing code for pressure switch failed open. Unit has been installed for 19 months no problems. Ao smith tools used. We have a 40 gallon hot water tank model gpvt 40 200.
Is this for gas or air where is it can it be replaced or do i need to replace the blower unit. First turn the power of the furnace off. Use an ohmmeter to check if the pressure switch is opening or closing properly when heat is called for. Now use the ohmmeter to check whether the pressure switch is functioning properly.
Pressure switch failed open. Inch socket needle nose pliers. Problems with new water heater. Do not replace it if the closed switch contacts got open during the operation first check the pipe length and look for possible obstructions.
John wood gas water heater started but soon as main gas kicked in it runs for few seconds and stops using honeywell wv4464b1037 controller. All of the information for this pressure switch replacement video is applicable to the following brands. The most common reasons for replacing.