Use an ohmmeter to check if the pressure switch is opening or closing properly when heat is called for.
Furnace pressure switch lowes.
Suitable for jet pumps submersible pumps and reciprocating pumps.
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.
Find furnaces furnace accessories at lowe s today.
First turn the power of the furnace off.
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.
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This pressure switch signals the pump to start when the water system drops to 40 psi factory set and stops at 60 psi factory set.