Thermostats can malfunction due to old wiring, dust buildup, and a loose wire connection. One of the most common reasons that your air conditioner compressor doesn’t turn on is a problem with the thermostat or control board. Let’s start with the thermostat: Diagnose a faulty thermostat: If you don’t find any issues with the shore power connection, the next two things that you will want to troubleshoot are your thermostat and the air conditioner. However, you wouldn’t be the first person not to notice. It’s easy to lose shore power and not notice it because your 12-volt appliances will still run off the battery. During hot summer months, when everyone is running their air conditioners, it’s not uncommon for the campground to have a power outage. Now is also a good time to meet your neighbor and ask if they have any electrical issues. Also, check the breaker in your RV and on the breaker for the pedestal outside. If power is out for other appliances, you may have a problem with your shore power.Įnsure that your RV is connected correctly at the post and to your RV. Make sure that you don’t have a tripped breaker. If you are, and everything else in the RV is running (microwave, power outlets, etc.), check the breaker panel and find the breaker for the air conditioner. First, make sure that you’re fully connected to shore power. However, if nothing is working, it’s time to check your electrical connections. If all is good with the thermostat settings and your fan is working, but it’s not cooling, you may need to do some thermostat troubleshooting. If no power is getting to the air conditioner and the fans don’t run, you likely have an electrical issue or problem with the air conditioner unit. There can be a few things causing problems, including the thermostat and the air conditioner itself. If it’s getting power, but the compressor doesn’t run, it’s time to check a few more things. The part of the air conditioner that does the cooling is the compressor. Of course, you’ll also want to make sure the thermostat is selected to cool and not just on fan mode. If the Air conditioner operates with just the fan, you know that the AC is receiving power. In addition to testing the air conditioner for cooling, try it on fan mode. The air conditioner will only turn on when the temperature in your RV rises above the set temperature. On your thermostat, make sure that it is set to cool, and the temperature is set below the current ambient temperature in the RV. If your air conditioner is not turning on, the first thing to check is the thermostat and electrical connection. My air conditioner is not turning on! Is the thermostat set correctly? Since the air conditioner may be hard to access, it’s a good idea to write down the model number of your unit and keep it handy if you need to order parts or look up an electrical diagram. However, remember that if it’s a really hot day, it’s possible that your AC unit is not powerful enough to keep things as cool as you want. Below, we’ll cover some of the more common issues and suggest solutions. However, since there are many components of the RV cooling system, diagnosing issues can seem challenging. With proper maintenance, your RV AC unit will last many years. Most RVs will have a rooftop AC unit (or two) that pulls air from the interior of the RV, cools it down, and circulates the cold air through roof vents in your RV.
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