Why Is My RV Furnace Blowing Cold Air?

A running fan does not guarantee burner ignition. Low battery voltage, airflow problems, thermostat issues, and ignition components may be involved.

Travel trailer outdoors, illustrative photo — Helpful visual context for RV owners. Illustrative image

What might be happening?

A running fan does not guarantee burner ignition. Low battery voltage, airflow problems, thermostat issues, and ignition components may be involved.

What to check or record before calling

Record whether the fan starts, whether ignition is attempted, and any displayed fault codes.

Write down the RV year and model, the affected component's make and model, any error codes, and when the symptoms first began. Clear photos help when it is safe to take them.

Safety: If you smell propane, leave the area and seek qualified help. If a situation feels unsafe, stop using the affected equipment and seek qualified help.

Need an experienced hand?

Michigan RV Repair provides mobile RV troubleshooting and repair by appointment around Grand Rapids and West Michigan. We are happy to help you work out the next practical step.

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