Step 2 inspect the pressure switch.
Water heater pressure switch open.
Unit has been installed for 19 months no problems.
Came home to no heat.
I recently moved into a newly built home and we ve been running into some issues with the hot water and a few other things.
Upon turning on the switch you should immediately here the blower for the powervent kick on.
Also noticed the control board was blinking red.
If your furnace is showing a pressure switch error it can be concerning.
Next take off one of the power hoses and blow on it.
This is fixed in my prior video.
The proper degree of negative pressure differential is necessary to maintain furnace operation.
Pressure switch failed open.
The circuit must be closed at all time during the heating cycle.
The switch activates in response to the pressure ex.
Ao water heater model gs650yrvit showing code for pressure switch failed open.
Pressure change due to blockage so it opens or closes the circuit sending the impulse to the circuit board for further action.
Turn on the switch for the water heater.
When your heater is displaying water switch open it does not always require the pressure switch to be adjusted.
The good news is that usually an open pressure switch error isn t an extremely extensive or expensive fix.
Problems with new water heater.
Possible reasons your furnace pressure switch is stuck open include.
First turn the power of the furnace off.
The furnace was loud and caused by the draft inducer.
Use an ohmmeter to check if the pressure switch is opening or closing properly when heat is called for.
Is this for gas or air where is it can it be replaced or do i need to replace the blower unit.
My first suggestion is to thoroughly clean the filter and make certain the pump basket and skimmer basket is clean of any leaves or debris.
Open contacts mean that there is no flow of electricity so that the unit won t run.
Plug in one of the two wires you disconnected from the pressure switch into the thin piece of metal thus making a jumper out off the flat metal.