Skip to content

Why is My Forest River RV Furnace Blowing Cold Air?

Are you experiencing the frustration of your Forest River RV furnace blowing cold air when you’re expecting a cozy and warm atmosphere?

Don’t worry, you’re not alone!

Many RV owners have encountered this issue and wondered what could be causing it.

In this comprehensive guide, we will delve into the possible reasons behind your forest river rv furnace blowing cold air and provide you with practical solutions to resolve the problem.

So, let’s get started and get your furnace back to blowing warm air again!

Why is My Forest River RV Furnace Blowing Cold Air?

Before we dive into the troubleshooting process, it’s essential to understand the underlying causes that can lead to your forest river rv furnace blowing cold air.

Let’s explore some of the common culprits:

Insufficient Propane Supply

If your furnace is not receiving an adequate supply of propane, it may struggle to generate enough heat to warm your RV.

Propane is the primary fuel source for most RV furnaces, and if the supply is low or there is an issue with the propane system, it can result in cold air blowing from the vents.

Thermostat Misconfiguration

A misconfigured thermostat can also be the reason behind your forest river rv furnace blowing cold air.

If the thermostat is set to a low temperature or in the cooling mode instead of the heating mode, the furnace will not activate, leading to cold air blowing through the vents.

Ignition or Pilot Light Problems

The ignition or pilot light is responsible for igniting the propane and starting the heating process in your furnace.

If the ignition or pilot light is malfunctioning, it can prevent the furnace from producing heat, resulting in cold air being circulated instead.

Airflow Restrictions

Another possible cause of cold air blowing from your RV furnace is airflow restrictions within the system.

Blocked or dirty air filters, vents, or ducts can hinder the flow of warm air, preventing it from reaching the desired temperature.

Malfunctioning Blower Motor

The blower motor plays a crucial role in distributing warm air throughout your RV.

If the blower motor is faulty or not working at its optimal capacity, it may not push enough air through the furnace, resulting in cold air blowing from the vents.

Ductwork Issues

Damaged or poorly connected ductwork can lead to air leaks, causing the warm air to escape before it reaches the vents.

This can create an imbalance in the airflow, resulting in cold air being blown into your RV.

Now that we have explored some of the possible causes, let’s move on to the troubleshooting steps you can take to diagnose and resolve the issue.

Troubleshooting Steps for Forest River RV Furnace Blowing Cold Air

1. Check the Propane Supply

The first step in troubleshooting your forest river rv furnace blowing cold air is to ensure that your propane supply is sufficient.

Here’s what you can do:

  1. Check the propane tank to ensure it has an adequate amount of fuel.
  2. Make sure the propane valve is fully open.
  3. Inspect the propane lines for any leaks or damage. If you suspect a leak, it’s crucial to contact a professional to address the issue.

2. Verify Thermostat Settings

Sometimes, the thermostat settings can be the culprit behind your furnace blowing cold air.

Follow these steps to verify and adjust the settings:

  1. Check that the thermostat is set to the heating mode and not the cooling mode.
  2. Ensure that the temperature setting is higher than the current room temperature.
  3. Try adjusting the temperature a few degrees higher to see if the furnace starts blowing warm air.

3. Inspect the Ignition or Pilot Light

The ignition or pilot light is responsible for igniting the propane in your furnace.

If it’s not working correctly, it can result in cold air blowing from the vents.

Follow these steps to inspect and troubleshoot the ignition or pilot light:

  1. Locate the ignition or pilot light assembly. Refer to your furnace’s manual for guidance.
  2. Check if the ignition or pilot light is lit. If not, follow the manufacturer’s instructions to relight it.
  3. Clean the ignition or pilot light assembly to remove any dirt or debris that may be obstructing the flame.

4. Clear Airflow Restrictions

Blocked or dirty air filters, vents, or ducts can impede the airflow in your RV furnace.

To address this issue, perform the following steps:

  1. Locate the air filters in your furnace system and inspect them for dirt or debris.
  2. If the filters are dirty, clean or replace them according to the manufacturer’s recommendations.
  3. Remove any obstructions from the vents and ensure they are not blocked by furniture or other objects.
  4. Check the ductwork for any leaks, loose connections, or damage. Seal any leaks with appropriate duct tape or consult a professional for repairs.

5. Test the Blower Motor

A malfunctioning blower motor can hinder the proper circulation of warm air.

To test the blower motor, follow these steps:

  1. Turn on your furnace and listen for the sound of the blower motor running.
  2. If you don’t hear any noise or the motor is making unusual sounds, it may indicate a problem.
  3. Consult a professional to inspect and repair the blower motor if necessary.

6. Inspect the Ductwork

Damaged or poorly connected ductwork can lead to air leaks and prevent warm air from reaching the vents.

Here’s what you can do:

  1. Examine the ductwork for any visible damage or disconnections.
  2. Ensure that all duct joints are properly sealed.
  3. Consider hiring a professional to conduct a thorough inspection of the ductwork and perform any necessary repairs.

Frequently Asked Questions (FAQs)

Why is my forest river rv furnace blowing cold air even though the propane tank is full?

If your furnace is blowing cold air despite a full propane tank, it could be due to a malfunctioning component within the furnace, such as the ignition or pilot light. It’s recommended to have a professional inspect and repair the furnace to address the issue.

Can a dirty air filter cause the forest river rv furnace to blow cold air?

Yes, a dirty air filter can restrict the airflow in your RV furnace, leading to cold air blowing from the vents. It’s important to regularly clean or replace the air filters to ensure proper furnace performance.

How often should I clean or replace the air filters in my forest river rv furnace?

Cleaning or replacing the air filters in your RV furnace depends on several factors, including usage and environmental conditions. However, as a general guideline, it’s recommended to inspect and clean the filters every 30 days and replace them every 3 to 6 months.

What should I do if the blower motor in my forest river rv furnace is not working?

If the blower motor in your RV furnace is not functioning correctly, it’s advisable to consult a professional technician who specializes in RV furnaces. They can diagnose the issue and recommend the appropriate repairs or replacements.

Can a thermostat malfunction cause the forest river rv furnace to blow cold air?

Yes, a malfunctioning thermostat can result in the forest river rv furnace blowing cold air. Ensure that the thermostat settings are correct and try replacing the batteries if necessary. If the problem persists, it’s best to seek professional assistance.

Why is it essential to have a professional inspect my forest river rv furnace?

Having a professional inspect your RV furnace ensures that any underlying issues are properly diagnosed and resolved. They have the expertise and tools to identify problems accurately, enhancing the safety and efficiency of your furnace.

Conclusion

Experiencing a forest river rv furnace blowing cold air can put a damper on your RV adventures.

However, by following the troubleshooting steps outlined in this guide, you can identify and resolve the underlying issues causing the problem.

Remember to check the propane supply, thermostat settings, ignition or pilot light, airflow restrictions, blower motor, and ductwork to ensure everything is in proper working order.

If you’re unsure or unable to troubleshoot the furnace yourself, don’t hesitate to seek professional assistance.

With a little effort and the right expertise, you’ll have your RV furnace blowing warm air again, allowing you to enjoy a cozy and comfortable space during your travels.