Question about Coleman 5070-751 Utility Heater

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Gas flows and heater ignites with the light button pushed. gas shuts off when button is released.

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This sounds like a bad thermocouple, what this does is sense flame by heat. You can try to clean it with steel wool and make sure it is tight where it goes to the gas valve. Make sure it is on the top center pert of the flame as this is the hottest part of the flame. If cleaning does not work replacing it will.

Posted on Dec 29, 2010

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Have 85000 but all-pro propane heater. starts fine good flame, release the gas valve button, heater shuts down no gas


If you have a thermocouple and standing pilot as described the gas cannot flow full to the burners with the gas valve button depressed because the position of the gas valve to allow the button to be depressed is not in the 'on' position....its in the 'pilot' position.

Are you sure you cleaned the 'thermocouple' and not just a 'spark ignition electrode' ?? One with spark ignition will not have a gas valve that has a pilot position.... Kinda confusing and conflicting data to sort through ..... Hmmmm....

If you have the spark ignition style, the problem COULD be in the 'flame rectification' circuit. IF it has the ignition electrode, the other side of the furnace will contain the 'flame sensor' that senses the flame and completes the ground circuit of the electronic module through the flame. Its not doing it, so either it is oxidized up inhibiting its ability to conduct electricity through the flame or there is residual oxidation within some of the terminal connections of the ground circuit.

IF what you have is the 'standing pilot', the first suggestion is to replace the thermocouple. A more remote possibility is the gas valve has a defective safety coil that drops out when you release the pilot button.

Dec 23, 2014 | All-Pro Heating & Cooling

1 Answer

No hot water no flame gwh1600h bosch


Tell me more! --
Do you have any other gas appliances in the house?-- and they are firing OK? Can you hear the gas flowing when you push in on the ignition start button? -- There should be a spark as you 'snap' the button?
Remember-- YOu get no ignition of the big flame, until you have water flowing--
How old is the heater?-- Could there be come obstruction in the water flow sensing device?

Oct 13, 2013 | Water Heaters

1 Answer

New blue flame heater, everything is hooked up, gas is going to unit, I have a natural gas hookup, in the correct port, knob is turned and locked into the NG position but unit wont light. There is gas...


do you have the pilot light burning if not then you have to get in burning first
Put knob in pilot position push down and hold for at least 30 seconds or longer then if there is an igniter push and release it push and release till pilot light comes on .Continue to hold pilot light button down for another 10 seconds or so, release pilot button and turn button to on or up a number or set T stat
Main flame should come on and burn

Oct 13, 2013 | Procom Heating & Cooling

1 Answer

My Bradford White Defender M-I-30T6FBN doesn't show igniter button on instructions


1) Copy following links to identify gas control valve and read ignition procedure, and access service manual for your product:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

2) Honeywell gas control used on recent Bradford White gas water heaters has red knob that rotates to pilot. Press and hold red knob. Then push red igniter button until status light changes.

Feb 11, 2013 | Bradford White Bradford MI30T6FBN-337 30...

1 Answer

Rinnai gas heater not staying ignited


Blocked pilot flame too small or thermocouple needs replacing

May 27, 2012 | Heating & Cooling

1 Answer

My fathers Bosch water wizard tf 250 will not start. the water will flow but no gas will not ignite or come through the pipe to the heater. the gas bottle is full. thanks Dave Tooley


Dave, make sure that the gas valve on the Propane tank, is fully open and that the inline gas shutoff valve near the heater is turned ON. Those are the basic two things that would prevent the gas from flowing thru the gas line, to the heater.

If the above valves are ON, the problem then lies with the gas control valve on the water heater. If it has pilot light that has to be lit, make sure that the heater's gas control valve is properly in the PILOT Position, before attempting to light it. It must be able to be pushed ALL the way in and you should feel strong pressure pushing back at you (other than spring pressure). When you feel that, it's in the PILOT Position and ready to be lit. Once it's lit, continue to hold the Pilot Button in for 1 minute, then release it. If the Pilot stays lit, turn it to the ON Position.

Hope this helped you to troubleshoot and solve the problem. Please let me know. Thanks.

Jun 22, 2011 | Heating & Cooling

1 Answer

The piolet light will not light. If I turn the


You may have a plugged orifice in the pilot tube assy. If you have any way of getting to the orifice with compressed air, and blow back, it may dislodge it, if it is plugged. If possible, carefully remove pilot tube at valve end first, so that if it is debris in there, it blows clean of the tube, so it won't clog again. Otherwise you'll have to remove complete assy. Another thing to try as well, is to shut valve off, loosen fitting at valve for pilot tube, AND MAKING SURE NO FLAME OR SPARK ANYWHERE IN THE AREA, take a spray bottle with dish soap and water mixed (bubble tester) and then spray at pilot fitting when it is loose, and push pilot, to see if any bubbles appear, indicating gas flow. If no flow there, then I'd get a new gas valve.

Jan 25, 2010 | Rheem 40 Gallon FVR NATGAS Low WATER...

1 Answer

I can not get the gas to ignite on this fridge. Sometimes I will see a flame in the spy glass inside the fridge but nothing appears to happen after that. By the way as I do not have a instruction manual,...


You should find one button which you can push in or on some models it is a spring loaded turning action. Then there is a second button which when pushed you will hear a click sound. this is an ignitor and makes a spark at the burner area. Ok, the first button should be pushed or turned and held in place for a count of five this is to allow the gas to reach from the cylinder to the burner. You can then repeat press the igniter button to make a spark. Check in sightglass to see if flame is burning. Do not release the gas button for at least a count of ten. This is to heat up a small wire thermocouple. It is a safety device at the burner which glows red and keeps the flame burning and the gas flowing. Should the flame be blown out by wind, the wire will cool and the thermocouple will shut off gas flow. So to summarize, the gas button is a bypass to allow temporary flow of gas to the burner until the igniter is pressed. Hope this helps, rate me.

Nov 05, 2009 | Refrigerators

1 Answer

The pilot light will not stay lit to light the heater.


The power pile (pilot generator) is defective. It produces a milivolt signal to ensure to keep the gas valve open. If it goes bad, the valve thinks the pilot is out, even when you are holding the button down, so when you release the button, it shuts the gas off to prevent excess gas buildup and a possible explosion.

Sep 10, 2009 | Coleman (5040B750) Patio Heater

2 Answers

Unable To Keep Pilot Light Lit!


I have a Williams top vent gravity wall furnace (model 5009622) and I had the same problem. I had to take the cover off the furnace -- screw on top and two at the bottom (open the access door and there is one screw on each side) to get to the reset button for the vent safety shutoff system. On my furnace it's on the left side toward the top of the unit. I pressed the little red reset button and it's been working ever since. If your furnace is properly installed and doesn't have bird's nest in the chimney, it should work fine. Good luck!

Mar 04, 2007 | Williams 2509612 Ceramic Mid-Size Heater

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