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Electronic ignition hot water heater (6gal) lights but wont get water hot. The red light inside my RV goes off and back on after about 3 minutes. When I checked the unit outside, the pilot is lt, but not firing up enough to heat the water.

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Check to see if setiment has settled on the pilot....blow it out with air if it has. This issue comes up often with water heaters and rv refers. If that is not the problem and the pilot remains lit, but never increases when the thermostat is turned up, you probably need a new gas valve/thermostat.

Posted on Mar 10, 2014

  • Red River RV Repair Jul 29, 2014

    Do not use compressed air to blow out the orifice or burner tube as the orifice is a manmade ruby and could be damaged which will cause further water heater failure. Compressed air could also force debris into the orifice and create more problems. Simply remove the burner tube and gently tap on a hard surface to remove any loose debris. To clean the orifice you will need distilled alcohol to soak the orifice in and then allow to air dry. Do not run a wire cleaner through the orifice as the opening is laser cut with a spiral which creates air draw to allow the flame to burn properly. If the water heater is lighting but not producing hot water, more than like you have a closed valve on the back of the water heater. Make sure the bottom and top valves are open and the middle valve is closed. The top is hot water out, the bottom is cld water in and the middle valve is winterization bypass If you have an questions please feel free to contact me at redriverrvrepair@yahoo.com

  • Joseph Aug 31, 2014

    ditto^^^^^^^

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Check the water heater bypass valves behind the heater are they in bypass or is the blender valve open between hot and cold? It should be shut or closed when using hot water

Posted on Jul 13, 2019

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It's possible that your system is working correctly but one quite unknown thing can cause the water to be only lukewarm. If you have an outside shower or outside faucet by the dump tank panel check to make sure that the water knobs are turned off there. Sometimes someone will turn both hot and cold water on at the outside shower controls and turn off the flow using the shower head shutoff instead of the knobs. This allows the cold and hot water to mix and make the flow inside the RV to be only slightly warm.

Posted on Mar 01, 2015

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The fuse would normally be located in the Charger/Converter Breaker/Fuse panel.

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How to winterize


ok, been a while so lets ee if I can get this all down.

1 - Drain water from your holding tank and remove drain plug in hot water heater. Drain holding tanks ( Waste )
2- turn on bypass for hot water heater ( instruction if needed )
3 - Get yourself some winterizing fluid ( can't remember exact name ) from your local Dealer . 2 or 3 gallons should be good
4- Poor this fluid into your water rez tank. All of it
5 - now go around to EVERY tap in your trailer ( one at a time ) and turn on cold water until water runs pink ( or what ever colour fluid you bought ) Close faucet them do the same for hot water tap. Repeat this at every faucet. Even the ones outside if you have any.
6 Don't forget to flush toilet in water runs pink.
7. Ensure all gas vales have been turned off ( tank vales included )

If you did everything right you should be good to go.

Plz double this list to make sure I covered everything

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Make sure the water tank is FULL before you fire it up. There should be a switch inside the coach somewhere to turn it on.

If it doesn't ignite immediately, you probably have air in the lines. Light the stove and let it burn for a minute, then try the hot water tank again. Might take a few tries to get it fired up.

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