Introduction
Replace a faulty well pump switch in about an hour, with no special tools or skills required.Well Pump Pressure Switch Adjustment
Your well pump gets its marching orders from the switch mounted on the pressure tank. When the switch acts up (and they all do eventually), you’ll see all kinds of strange behavior. Sometimes the pump won’t turn on — or, if it does, it turns on erratically, or won’t shut off.
The good news? Replacing the pressure switch is cheap and only takes about an hour.
Diagnose a cranky switch by rapping on it with a screwdriver handle. If the pump runs (you’ll hear it click) or quits, you’ve nailed the problem. But even if it doesn’t respond, it’s still worth replacing the switch.
Switches come in three pressure ranges: 20 to 40, 30 to 50 and 40 to 60 pounds per square inch (psi). Always replace your switch with one of the same rating; it’s usually printed inside the plastic cover of your old switch. You should also buy a new pressure gauge and a 1/4-in. by 6-in. galvanized nipple.
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