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I have a Gasmate CH 200 column heater that turns off after 10 or 15 mins
When cold it will light the pilot then after 10 secs you light the burner as normal. After approx. 10 mins flame goes out. the pilot will ignite but not remain lit when trying to light burner. It will work when the unit has cooled right down, and the same happens all over again
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Propane and natural gas heaters have standing pilot ignition or electronic ignition. If you have a standing pilot ignition you should see if the pilot light stays on when lit and after the valve is turned to the full ON position after lighting. Electronic ignition should light the pilot for you and then the burner comes on - but at the end of the cycle the pilot and the burner go off. If you do not have ignition, check the gas pressure -- 5-7 inches of water column for natural gas and 11-15 inches of water column for propane. Use the pressure noted on the regulator or other labeling. If you cannot test the pressure then contact your gas company or propane supplier for service.
A lot of pilot lights have a thermal coupler... the pilot light must be lit for several min to open the coupler so the pilot light will not go out.... the newer systems use an electronic ignition and no pilot light and need power to autostart but the coupler may be gone if you are holding that pilot start button down for several min and the pilot light is still going out..ps.. leave it in pilot mode for several min after initial start up before turning turning full burner operation operation operation operation operation operation operation it will snuff out the pilot light.
For (fire) safety, there is usually a thermostat that will turn off the gas if pilot light goes out.
So when you try to light the pilot you will have keep press & hold the pilot gas supply for at least 10 sec until the thermostat is heated up. Then only when the pilot light stays on continually, can you turn on the burner.
Forget about changing to a High pressure regulator!
Do you have 24V at the brown wire of the gas valve? If you do then it is probably a bad gas valve. If you don't have 24V on the brown wire it is probably the ignitor.
You may be low on gas in the tank and there's not enough pressure and/or volume of gas to sustain it. Also, try carefully cleaning the burner elements.
There should be a removable panel on the bottom front. Remove this panel and you should see gas valve with two lines going into combustion chamber. The larger of the two will be for burner and the smaller to the pilot light. There may be lighting instructions on the inside of panel,or on front of burner compartment. If not look at gas valve and see if you can see where it is marked off pilot and on. Turn thermostat to lowest setting and gas valve to pilot ,locate pilot light and hold match to it while you depress pilot button . Pilot should light. If it does hold button depressed for 1 to 2 mins. Release pilot button and if pilot stays lit turn valve to on. Turn thermostat up to desired setting and see if burner comes on. If it does you should be done. Put cover back on. If pilot light does not stay lit or burner won't light I Would recommend you call a service tech as there are several things that could be wrong. Hope this helps you.Thanks
A polit generator produces about 750 MV without a load. Under load it will drop to about 200-250 MV. If the system is working don't worry about it. If the system is not working replace the pilot generator and retest. Pilot generators usually go bad slowly.
Sounds like the gas valve has failed. The gas valve can be replaced. It will unscrew out of the tank. Shut the water supply to the tank off and get the new gas ready to screw in. Take out the old and screw in the new, you will onlt lose about a cup or two of water if you are quick enough. Otherwise drain the tank down if you must. If you are going to replace the gas valve I would also replace the thermocoupler.
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