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RV AC Blower Not Working: Causes and Solutions

Having a functional air conditioning system is crucial for a comfortable and enjoyable RV experience.

However, it can be quite frustrating when the AC blower stops working.

A malfunctioning AC blower can result in poor air circulation, inadequate cooling, and an uncomfortable environment inside your RV.

In this article, we will discuss common reasons why an RV AC blower may not be working and provide practical solutions to get it up and running again.

RV AC Blower Not Working: Causes and Solutions

Power Supply Issues

Blown Fuse or Tripped Breaker

If your RV’s AC blower is not working, the first thing to check is the power supply.

A blown fuse or tripped breaker could be the culprit.

Inspect the fuse box or breaker panel and look for any blown fuses or tripped breakers.

Replace any blown fuses with the appropriate amperage rating and reset any tripped breakers.

If the issue persists, it’s recommended to consult a professional electrician to identify and fix any electrical problems.

Thermostat Problems

Faulty Thermostat

A faulty thermostat can also lead to issues with the AC blower.

If the thermostat is not functioning correctly, it may not send the proper signals to activate the blower.

Test the thermostat by adjusting the temperature settings and observing if the blower kicks in.

If the thermostat is unresponsive or inconsistent, consider replacing it with a new one.

Consult the manufacturer’s guidelines or seek professional assistance for proper installation.

Blower Motor Troubles

Motor Burnout

One common cause of a non-working RV AC blower is a burned-out motor.

Over time, the blower motor can wear out or become damaged, resulting in a complete failure.

Signs of a burnt-out motor include unusual noises, lack of airflow, and a motor that won’t start even after attempting to turn it on.

In such cases, the blower motor will need to be replaced.

Consult your RV’s manual or contact the manufacturer for specific instructions on motor replacement.

Capacitor Issues

Failed Capacitor

A failed capacitor can also be responsible for a non-functioning RV AC blower.

The capacitor provides an initial electrical jolt to start the motor and keep it running.

If the capacitor is faulty, the blower motor may not receive the necessary power to operate.

Inspect the capacitor for visible signs of damage, such as bulging or leaking.

If you suspect a faulty capacitor, it is advisable to seek professional assistance for replacement, as working with electrical components can be dangerous.

Wiring Problems

Loose Connections

Loose or damaged wiring can impede the functioning of the AC blower.

Inspect the wiring connections around the blower motor and thermostat to ensure they are secure and free from corrosion or damage.

Tighten any loose connections and repair or replace any damaged wiring.

It is recommended to consult an electrician or RV technician for assistance if you are unsure about handling electrical repairs.

FAQs (Frequently Asked Questions)

Why is my RV AC blower not turning on?

There can be several reasons why your RV AC blower is not turning on. It could be due to power supply issues, a faulty thermostat, a burned-out motor, a failed capacitor, or wiring problems. Follow the troubleshooting steps mentioned in this article to identify and address the specific cause of the problem.

How do I check if the blower motor is working?

To check if the blower motor is working, start by setting the thermostat to the “Fan Only” mode. If you hear the motor running and feel airflow, it indicates the blower motor is functional. However, if there is no noise or airflow, it suggests a problem with the motor or its components, requiring further inspection and potential replacement.

Can I fix the AC blower motor myself?

While some minor issues with the AC blower motor can be fixed by RV owners with adequate knowledge and experience, it is generally recommended to seek professional assistance for motor repairs or replacement. Dealing with electrical components can be hazardous, and it’s crucial to ensure the work is done safely and correctly.

Are there any preventive measures to avoid AC blower issues?

Regular maintenance is key to preventing AC blower issues. Keep the blower and its components clean and free from debris. Schedule annual inspections with a professional technician to identify and address any potential problems before they escalate. Additionally, use the AC system responsibly, avoiding excessive strain on the motor by not setting it to excessively low temperatures.

How much does it cost to replace an RV AC blower motor?

The cost of replacing an RV AC blower motor can vary depending on factors such as the motor type, brand, and labor costs. On average, the cost can range from $200 to $500, including the motor and installation. It’s advisable to contact RV service centers or technicians for accurate estimates based on your specific requirements.

My AC blower is working, but the airflow is weak. What could be the issue?

If the AC blower is working, but the airflow is weak, it may be due to clogged air filters or ducts. Check the air filters and clean or replace them if necessary. Additionally, inspect the ducts for any obstructions or blockages and clear them to ensure proper airflow.


A non-working RV AC blower can quickly turn your camping experience into an uncomfortable ordeal.

By understanding the common causes and following the troubleshooting steps mentioned in this article, you can effectively diagnose and resolve issues related to your RV’s AC blower.

However, if you encounter complex electrical problems or feel uncomfortable performing the repairs yourself, it is best to seek professional assistance.

Remember to prioritize safety and regular maintenance to ensure your RV’s AC system continues to provide optimal cooling during your adventures.