Reasons RV Furnace Won’t Turn Off and How to Fix

The RV furnace is designed to provide warmth during cold weather, but it can be frustrating if it refuses to turn off.

This problem can lead to wasted fuel and even pose a fire hazard. There are several potential causes for an RV furnace that won’t turn off, such as a malfunctioning thermostat or a problem with the ignition system.

To fix the problem, you may need to do some troubleshooting and potentially seek the help of a professional mechanic. Regular maintenance and cleaning of the furnace can also help prevent future issues.

RV Furnace Won’t Turn Off: Reasons & Fixes

Here are some symptoms that may indicate that your RV furnace is not turning off:

• The furnace is continuously running: If you notice that your furnace is constantly running, even when it should be turning off, this could be a sign that there is a problem with the system.
• The furnace is not reaching the desired temperature: If the furnace is not able to heat the RV to the desired temperature, this could be a sign that there is a problem with the system.
• The furnace is using more fuel than usual: If you notice that your furnace is using more fuel than normal, this could be a sign that there is a problem with the system.
• The furnace is making unusual noises: If you hear unusual noises coming from the furnace, such as knocking or banging, this could be a sign that there is a problem with the system.
• The furnace is producing an unusual smell: If you notice an unusual smell coming from the furnace, such as the smell of gas, this could be a sign that there is a problem with the system.

If you are experiencing any of these symptoms, it is important to address the problems as soon as possible to prevent further damage to the furnace.

Follow this Method Accordingly to Fix an Issue with RV Furnace Won’t Turn Off

Turn Off the Gas and Power Supply

Before attempting to fix the furnace, it is important to turn off the gas and power supply to the furnace to ensure your safety.

To turn off the gas supply, locate the propane tanks on your RV and turn the valve to the “off” position. To turn off the power supply, locate the fuse box or circuit breaker and turn off the power to the furnace.

Locate the Thermostat

The thermostat is responsible for controlling the temperature in your RV. If the thermostat is not functioning correctly, it could be causing the furnace to turn off.

The thermostat is typically located near the furnace, and it may be mounted on the wall or on a control panel.

Examine the Thermostat

To test the thermostat, you can use a multimeter to check the voltage of the thermostat’s wires. First, turn the multimeter to the “voltage” setting.

Then, touch the positive lead of the multimeter to the positive wire of the thermostat and the negative lead to the negative wire.

The voltage should be within the expected range, which is typically between 24 and 28 volts. If the voltage is not within this range, the thermostat may need to be replaced.

Inspect the Ignition System

If the thermostat is functioning properly, the next step is to check the ignition system. The ignition system is responsible for starting the furnace.

If there is a problem with the ignition system, the furnace may not turn off. To check the ignition system, you will need to access the furnace.

This may require removing screws or bolts to open the furnace cover. Once the cover is removed, you should be able to see the ignition system.

Clean the Furnace

If the thermostat and ignition system are functioning properly, the next step is to clean the furnace. Dirt and debris can build up in the furnace over time and prevent it from functioning properly.

Use a vacuum and brushes to clean out the furnace and its components. Be sure to also clean the air filter, as a dirty filter can obstruct airflow and prevent the furnace from functioning properly.

Prevent any Leaking Gas

It is important to check for gas leaks. A gas leak can be dangerous and should be addressed immediately. Use a gas leak detector to check for leaks.

If you detect a gas leak, turn off the gas supply and ventilate the area immediately. Do not attempt to fix a gas leak yourself – call a professional to fix the leak.

Seek Assistance If Needed

If you are unable to fix the furnace on your own, it is recommended to seek the help of a professional mechanic. They will be able to diagnose the problem and repair or replace any faulty components.

You can also get help if you are unsure about any of the steps or if you are not comfortable attempting to fix the furnace yourself.

What Are the Appropriate Tools for Fixing an RV Furnace Won’t Turn Off Problem?

To fix an RV furnace that won’t turn off, you may need the following tools:

1. Screwdriver Set: You may need a screwdriver to remove any screws that are holding the furnace in place or to access the furnace’s components.
2. Pliers: You will need pliers to remove any nuts or bolts that are holding the furnace in place or to access the furnace’s components.
3. Wrench: You may need a wrench to remove any nuts or bolts that are holding the furnace in place or to access the furnace’s components.
4. Multimeter: A multimeter is a useful tool for testing electrical components, such as the thermostat or ignition system.
5. Gas Leak Detector: If you suspect that there may be a gas leak in your RV furnace, it is important to use a gas leak detector to ensure the safety of the system.
6. Cleaning Supplies: To clean the furnace and its components, you may need a variety of cleaning supplies, such as a vacuum, brushes, and cleaning solution.

It is important to use the appropriate tools for the job to ensure that you are able to safely and effectively fix the furnace.

Frequently Asked Questions (FAQs)