Common Keystone RV Furnace Troubleshooting

It is common for Keystone RV furnaces to experience operational issues from time to time. Fortunately, most of the problems are relatively easy to diagnose and fix. This guide will help you understand some of the common furnace troubleshooting steps so that you can have a better understanding of how your RV furnace works and what can be done to fix it quickly.

Lack of Heat/ Ignition Failure

If your Keystone RV furnace isn’t producing any heat, then there may be an issue with the ignition system. First, check to make sure that electricity is running properly through the unit by making sure that all electrical connections are tight and secure. If the problem persists, then it’s likely due to a faulty thermocouple or pilot assembly. You’ll need to replace these parts in order to resolve the issue.

Unusual Odors and Smoke

If you notice any strange odors or excessive smoke coming from the furnace, then it could be a sign of an imminent fire hazard. Unplug the unit immediately and check for signs of overheating. If you find any, then it’s likely that the heat exchanger has malfunctioned and needs to be replaced. Additionally, make sure that your RV is properly ventilated in order to reduce the risk of carbon monoxide poisoning.

Noisy Operation

If your Keystone RV furnace is making unusual noises during operation, then it could indicate a problem with its internal fan motor or blower motor. Check to make sure that the fan blades aren’t blocked or obstructed, and if they are, then clear them away. If this doesn’t solve the problem, then it could be due to a faulty motor which will need to be replaced in order to restore normal operations.

Other problems

  1. Check the Thermostat: Make sure the thermostat is set to the desired temperature and that the fan is set to “auto”.
  2. Check the Ignitor: Check to make sure the ignitor is sparking, if not, replace it.
  3. Check the Gas Valve: Make sure the gas valve is open and the pilot light is lit. If not, replace the gas valve.
  4. Check the Blower Motor: Check to make sure the blower motor is spinning and that there is adequate airflow. If not, replace the blower motor.
  5. Check the Flame Sensor: Remove the flame sensor and check for dirt or debris. If there is any, clean the sensor and reinstall.
  6. Check the Vent Pipe: Make sure the vent pipe is clear of any obstructions. If not, clear the pipe.
  7. Check the Heat Exchanger: Check to make sure the heat exchanger is not cracked or damaged. If it is, replace the heat exchanger.

By understanding some of the common furnace troubleshooting steps, you can quickly diagnose and fix any issues with your Keystone RV furnace. Always remember to stay safe when working with electrical components and contact a professional if you feel uncomfortable attempting repairs on your own. With the right knowledge and tools, you can easily get your RV up and running again in no time!


Keystone RV furnaces are reliable pieces of equipment that provide comfortable warmth to your RV. However, they are also prone to issues from time to time. Fortunately, most issues can be easily diagnosed and fixed with basic troubleshooting steps. With this guide in hand, you now have the knowledge you need to quickly and safely address any problems that come up with your Keystone RV furnace. If you still feel uncomfortable attempting repairs on your own then don’t hesitate to contact a professional for assistance.

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