Your air conditioner contains several safety switches to keep it running safely and shut it down when there’s a problem. Some of those switches are pressure switches, which detect pressure that’s either too high or too low. Watch out for these three signs that your Winter Park, FL, home’s AC pressure switch may be bad.

1. Temperamental AC Performance

If the pressure switch is starting to malfunction, you may notice your air conditioning system isn’t working consistently. This may manifest as short cycling or by only turning on sometimes when the system attempts to cycle. Either way, intermittent performance is a key indicator that the pressure switch is faulty.

2. AC Blowing Warm Air

A failing AC pressure switch may prevent the compressor from cycling on, preventing any cool air from flowing freely in your home. It does this to prevent damage to the compressor that can occur from issues like insufficient refrigerant pressure.

Keep in mind that a pressure switch is not the only reason that your system may blow warm air. Low refrigerant, a clogged air filter, and a faulty compressor are additional problems that could cause warm air from your vents. Routine AC maintenance is one of the best ways to get a jump on resolving the above malfunctions.

3. Air Conditioner Stops Working

You may find your air conditioner has stopped working altogether. If the pressure switch is stuck open, it won’t complete the circuit to turn on the compressor.

There are many other reasons your system won’t turn on. Check your thermostat, your air filter, and your circuit breaker. If all of these are fine, call for a professional to test your pressure switch and diagnose the problem.

Don’t let a bad pressure switch ruin your summer with an uncomfortable home. Call to schedule an AC repair with the skilled service techs at ACR Air Conditioning & Refrigeration.

Image provided by iStock

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