AC Compressor Not Stopping: 3 Proven Solutions

Is your AC compressor not stopping? Well, you’re not alone. This common issue might be easier to solve than you think, so let’s jump right in and cool things down.

AC Compressor Not Stopping
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Why Your AC Compressor Won’t Stop

So, why does an AC compressor refuse to hit the pause button? There are a few possible culprits. Let’s go through them, shall we?

Thermostat Issues

Think of your thermostat as the brains of the operation. It tells your AC when to cool down and when to take a breather. So, if it starts sending mixed signals, you might find your compressor working overtime.

Incorrect Thermostat Settings

You’d be surprised how often the issue isn’t with the compressor but with the settings of the thermostat. Have you set your AC to constant cool? If so, your poor compressor won’t catch a break. A simple adjustment might be all you need.

Malfunctioning Thermostat

But sometimes, it’s not about what you’ve set. The thermostat itself might be pulling the strings in the wrong direction. A faulty thermostat can cause the AC to keep running, leaving the compressor in a perpetual state of activity.

Refrigerant Overcharge

If you’re thinking, “But I don’t mess with the thermostat, and it’s brand new!”, don’t worry, we’ve got more suspects on our list. Refrigerant overcharge is a potential villain in our story. Too much refrigerant can wreak havoc on your system.

Causes of Refrigerant Overcharge

Overcharging can happen during servicing when too much refrigerant is added, and trust us, it’s not a case of “the more, the merrier”. It’s a delicate balance and tipping it can lead to a compressor that’s running for dear life.

Signs of Refrigerant Overcharge

So, how do you know if you’ve got too much of a good thing? Signs of an overcharged system include decreased cooling capacity, high pressure on the high side of the system, and you guessed it, a non-stop compressor. If you suspect an overcharge, call a professional. Meddling with refrigerant isn’t a DIY job.

Faulty Compressor Contactor

Another character in our AC drama? The compressor contactor. It’s a simple switch that controls the flow of electricity to the compressor. If it’s stuck in the ‘on’ position, our dear compressor can’t take a break, no matter how much it might want to.

Signs of a Bad Compressor Contactor

So, how can you tell if you have a faulty contactor? Your AC compressor running constantly is one sign. But you might also notice a buzzing sound or even a burnt smell. It’s best to get a professional to check it out, though – poking around electrical parts can be dangerous.

Impact of a Faulty Compressor Contactor

A faulty compressor contactor can cause your AC system to run continuously, leading to other problems like higher energy bills, decreased system lifespan, and an uncomfortably cold home. And who wants to live in a winter wonderland in the middle of summer?

Dirty Condenser Coils

Moving on to our last potential culprit – dirty condenser coils. They’re located outside your home, doing the vital job of dissipating heat removed from your home. But if they get too dirty, it’s like running a marathon while breathing through a straw. Not fun, right?

Causes of Dirty Condenser Coils

Dirt, dust, and debris from the outdoor environment can all dirty up your condenser coils over time. It’s an occupational hazard of being located outside. And without regular cleaning, they can get choked up, leading to our current problem – a compressor that can’t stop.

Impact of Dirty Condenser Coils

Dirty condenser coils can cause your system to work overtime, trying to cool your home. This can lead to higher energy bills and, if left unchecked, a shorter lifespan for your AC system. And nobody wants to fork out for a new AC before it’s due, right?

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How to Fix the AC Compressor Not Stopping Problem

Now that we’ve got our suspects, let’s solve this mystery. Here’s your toolbox for fixing an AC compressor that can’t seem to stop.

Adjusting Thermostat Settings

Start with the easy stuff – your thermostat. Check your settings, and make sure it’s not set to constant cooling. If you’re not sure how to adjust it, check the user manual or look for instructions online.

Correcting Refrigerant Levels

Next up, dealing with a potential refrigerant overcharge. This isn’t a DIY job – you’ll need a professional. They’ll be able to safely remove excess refrigerant and get your system balanced again.

Replacing a Faulty Compressor Contactor

Got a faulty compressor contactor? It’s time for a replacement. Again, this is a job for a professional, so give your local HVAC technician a call.

Preventive Measures to Avoid a Non-Stop AC Compressor

Prevention, as they say, is better than cure. So, here are a few tips to keep your compressor running smoothly.

Regular AC Maintenance

Regular maintenance is key to a happy, healthy AC system. This includes regular cleaning, annual servicing, and replacing parts as necessary.

Appropriate Use of Thermostat

Get to know your thermostat and use it wisely. Avoid setting your AC to constant cooling – it’s not necessary and can overwork your compressor.

Proper Handling of Refrigerants

Refrigerants should always be handled by a professional. They’re dangerous substances and should be dealt with carefully to avoid harm to you or your AC system.

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