RV furnace pilot light

Old 10-23-02, 10:17 PM
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RV furnace pilot light

The pilot light on my DUO-THERM RV pop-up camper furnace will not stay lit. I've replaced the thermocouple. The pilot light is not all blue and goes out as soon as I close the burner access door. In reading the other posts, I may have a pilot fresh air supply problem.

1. Where might the pilot fresh air intake be located?

2. I need to replace the burner access door gasket and cannot find a supplier. Is there a suitable gasket material available so I can make my own gasket? That may be problem since the old gasket is shot.

Any help is appreciated.

Old 10-24-02, 06:52 AM
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Hello Jim. Welcome to My Gas Appliances forum and the Do-It-Yourself Web Site.

RV heater units do not vary that much from other heaters of like design or operations. I highly doubt the pilot flame goes out as a result of the access door being closed, but it is always a rare possibility.

The mear fact that the pilot flame is not all blue indicates there is dust and or lint in the assembly. The pilot assembly must be cleaned out in order to obtain an all blue hot flame.

Thermocouples require the tips be heated to a very hot temp in order to produce sufficient current to keep the automatic pilot and burner safety opened. Cleaning the assembly to obtain an all blue an hot pilot flame is a first step correctional requirement.

Fresh air intakes can be located by looking around the inside and outside of the unit for air vents, air intake slots or holes, etc. Locating them and assuring they too are lint and dust free is a must to insure proper burner combustion air.

Once all this is completed the pilot flame should remain on. If not, it's possible the magneto coil is defective or a safety device is keeping the gas valve shut down.

It's also possible the entire gas valve is defective. This is a non repairable item. It may need to be tested by a professional heating agent and or an appliance parts retail sales store service person.

An RV dealer should be able to obtain the required parts for all the repairs and parts needed. Check with the local dealers and dealerships in your area.

An excellent source for orginal replacement parts is your local retail appliance parts store. Parts dealers are listed in the phone book under appliances.

Retail parts dealers can also help determine what the possible problem may be. Bring the make, model and serial numbers. The information will help to determine the possible problem causes.

Re-Read the heater questions within this forum on the topics of your units problem and the replies offered. Doing so will provide additional information.

If you need further assistance, use the REPLY button to add any additional information or questions, etc. Using this method also moves the topic back up to the top of the list automatically.

Regards & Good Luck, Forum Host & Moderator.
TCB4U2B2B Company Enterprises. Energy Conservation Consultants & Gas Appliance Diagnostics Technicians.

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