Camper AC Clicks But Doesn’t Come On | How Do I Fix

It’s finally time for your camping trip and you’ve loaded up the camper, ready to hit the road. As you start driving, you realize it’s getting hot inside. So, you turn on the AC, expecting cool relief. Press the button—just a clicking sound. No cold air. You start sweating as the temperature rises.

What’s wrong with the AC? Clicking but no cold air? Seasoned campers know a clicking AC needs fixing. The problem is probably in the electrical parts starting the AC compressor. With focused troubleshooting and maybe a camper technician’s help, you can figure it out.

Stay positive, dear campers. A clicking AC can be annoying but not impossible to fix. Equip yourself with the knowledge to find the issue. Think of the joy of cruising in a cool camper, clicking a thing of the past. Stay determined for a chilled-out camping adventure. The journey awaits!

What Causes Camper AC Click But Doesn’t Come On Issue and How to Fix It

If power is reaching the AC but it still just makes a clicking sound, the issue likely lies in one of the components. Here are some of the most common culprits and how to fix them:

1. Faulty Thermostat

The thermostat controls power between the AC and circuit breaker. A malfunctioning thermostat can disrupt the AC’s operation. Check if the thermostat is set correctly and replace it if necessary. Ensure that the thermostat wires are properly connected and not damaged. Replace the thermostat if faulty.

2. Defective Control Board 

The control board is the AC’s main control center. If it’s malfunctioning, it can prevent normal operation. Inspect the control board for signs of any burnt components or visible damage. You may be able to replace damaged fuses or relays on the board, otherwise, a complete control board replacement is required.

3. Malfunctioning Contactor

The contactor is like a high-voltage switch that uses an electromagnet to feed power to the AC compressor. If burned out, pitted, or worn, it can click loudly but fail to engage. Inspect the contactor for wear, burning, or pitting. Replacement is necessary if signs of damage are evident.

4. Faulty Capacitor

Capacitors help start the AC motor. A faulty capacitor can be a problem during the startup process. Test the capacitor’s functionality (Capacitance) using a multimeter and replace it if the readings indicate a malfunction. Capacitors are important for providing the initial boost to the compressor and fan motors.

5. Compressor Issues

If the compressor itself is broken – due to burned-out windings, bad valves, seized rotor, etc. – the typical result is a clicking sound when trying to start. Check for any unusual noises or signs of refrigerant leaks around the compressor. This requires pro repair or full compressor replacement.

How to Identify the Camper AC Not Coming On Issue

If your camper AC is making a clicking noise but not blowing cold air, the first step is to confirm it’s actually the AC making the sound and then verify power is getting to the unit.  

Confirm the Clicking Sound

Sit in the camper with the AC controls in hand and press the on button. Listen closely to pinpoint where the clicking sound is coming from. If the noise is clearly coming from the AC itself or the roof area where it’s located, then you can move on to the next step. It’s essential to first confirm the presence of the distinctive clicking sound.

Verify Power Supply

Check your camper’s circuit breakers and make sure the one connected to the AC is switched on. If it’s tripped, switch it fully off and then back on again to reset it. Even if the breaker looks like it’s in the on position, flip it off and on just to be safe. Also, inspect the disconnect box outside where power enters the camper to ensure everything is correctly connected.

Maintenance and Preventive Tips for Camper AC

With some basic maintenance and preventive care, you can minimize AC issues and keep cool all camping season:

Keep AC Coils Clean

Check and clean air conditioner fins and coils prior to each trip to allow maximum airflow. Dirty coils can compromise the AC’s efficiency. Regularly clean the evaporator and condenser coils to prevent debris buildup, promoting optimal heat exchange. Use a commercial coil cleaner or a DIY version with household products.

Check Wiring Connections Seasonally  

Inspect wiring to the AC unit and circuit breaker for any loose, damaged, or corrosion connections that could cause startup problems. Tighten loose connections, and clean, and replace damaged wires to maintain a reliable electrical system.

Inspect Roof Sealants Around the AC for Cracks

Water leaks can damage the internal components of the AC unit. Inspect roof sealants around the AC for cracks or gaps, ensuring a watertight seal with RV roof sealant to protect against potential water damage.

Have AC Inspected Annually by a Technician

Professional inspections by a certified technician are important for detecting potential issues before they escalate. An annual check-up ensures that your camper’s AC system is in peak condition for the upcoming seasons.

Q&A (Questions and Answers)

Q1: Why does my camper AC run but blow warm air?

A1: Your camper AC blows warm air likely due to low refrigerant levels. Check for leaks, and if identified, seal and recharge the system to ensure optimal cooling.

Q2: How can I tell if my camper AC compressor is bad?

A2: To check if your camper AC compressor is bad, listen for irregular noises and monitor inadequate cooling. A malfunctioning compressor may need professional inspection and replacement.

Q3: Why does my camper AC freeze up?

A3: It may signal restricted airflow or low refrigerant. Clean filters, check for blockages, and maintain proper refrigerant levels for efficient operation.

Q4: How can I improve my camper AC efficiency?

A4: Boost camper AC efficiency by keeping vents unblocked, maintaining filters, and shading the unit. Regularly clean and inspect components to ensure smooth and effective cooling.

Q5: Should I cover my camper AC while traveling?

A5: Covering your camper AC while traveling is not necessary. The unit is designed for on-the-road use. Ensure proper maintenance and your AC will handle the journey without a cover.

Final Thoughts

For a clicking camper AC, common causes include electrical issues and compressor concerns. Swift troubleshooting is crucial to resume comfort. Addressing problems promptly ensures a seamless journey. Regular maintenance is key for prolonged functionality. Keep cool, stay proactive, and enjoy your travels hassle-free.