Douglas hvac technician replied 10 years ago.
Gas furnace pressure switch stuck open.
M oglesby hvac technician replied 7 years ago.
Answered in 1 minute by.
If you have found that your pressure switch is not letting your furnace come on.
Using a cloth and a wire brush remove any blockages and dirt from the secondary exchanger and the inducer.
Answered in 3 minutes by.
The pressure switch is stuck open on my furnace how do i get that to come back on.
Watch this and we might be able to get it working again.
A disconnected or damaged pressure switch hose.
A malfunctioning pressure switch.
The gas furnace is not working.
Ask your own hvac question.
Ask your own hvac question.
The plunger may not be pulling in completely and may only bob around when the pressure builds up inside the furnace.
What should i do to fix it.
Below we ll go into more detail about what a pressure switch does as well as the issues above that can cause the pressure switch to stick open.
Possible reasons your furnace pressure switch is stuck open include.
The gas furnace is not.