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Furnace pressure switch lowes.
First turn the power of the furnace off.
Suitable for jet pumps submersible pumps and reciprocating pumps.
The square d by schneider electric pressure switch works with jet pumps submersible pumps and reciprocating pumps and the 40 60 psi pressure switch features a 1 4 in pressure connection.
Now use the ohmmeter to check whether the pressure switch is functioning properly.
Next take off one of the power hoses and blow on it.
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Use an ohmmeter to check if the pressure switch is opening or closing properly when heat is called for.
This switch is to be used.