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A single-pole contactor needs just one cord for power, neutral, and common. The contactor itself has a plunger that can be found under a cover. The coil may hum, however there's no power. Furthermore, the button might function when pushed in. If the switch is melted, it's time for a replacement. When you have actually located the problem, you can proceed to the next action.
When examining condensate drainpipe lines, you should first examine the button at the end of the line. The majority of drainpipe pipes are 3/4-inch white PVC. You must inspect this line for dust as well as particles, if any, by aesthetically inspecting the outdoors or indoor air handler. If you are unsure where the drain line attaches to the unit, you can make use of a channel to put water down the pipeline.
Examining condensate lines