Question about Uniflame 200209 Open Flame Patio Heater
I can fire up the patio heater as desribed by the instructions. I lite the pilot light then turn on the gas and the flame ignites as it should. But after a few minutes I hear a click at the control knob and the flames goes out. I can start it again but the flame stays on for a shorter period of time. After that I can not light it and I have to wait several minutes (30-60 min) to get it to light again. Is this a gas issue or a hardware issue?
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Posted on Jan 02, 2017
SOURCE: Pilot light lit but no heat
the pilot's millivolt generator may be at fault. if you have a meter that is capable of measuring a very small DC voltage, connect it up to the very end of the thermocouple and the copper cappillary. the thermocouple has a welded bead at the very end inside that generates a small DC voltage. Same principle of a J-K thermocouple. Iron constintan - two dissimiller metals where joined together produce a voltage when heated. the thermocouple actuates a millivolt electromagnet inside the valve to keep the valve pellet open. no voltage there it won't actuate the electromagnet.
Posted on Oct 15, 2007
the little tube that is in the path of the flame is a capillary tube that houses a thing called a j-k thermocouple. it is nothing more then a millivolt generator that produces a very small dc voltage that actuates a very small electromagnet in the main valve. when you start the unit you need to push in a button, correct? when you release the button the valve should stay open, but you say it doesn't. the millivolt generator needs to be replaced. try doing a search for "dynaglow" heaters or www dot desatech dot com for a new generator.
Posted on Dec 06, 2007
crappy pilot flame (not properly heating the thermocouple), bad thermocouple, thermocouple loose where it screws into the pilot safety valve, bad safety valve magnet.
One or more of those is the problem.
Oh...there is also a saftey switch...in case it tips over. It will also cause the pilot to not stay lit (if the switch or wires that go to i are faulty)
Posted on Jun 18, 2008
Hi , you can try and pull the panel on the bottom of fireplace out and check the adapter in fireplace. Sometimes they go bad. When you open in also check to see if there is an adapter plugged in and a option to use the battery operated function. If this goes bad the pilot will not stay lit.
Posted on Jan 14, 2009
You have a white scale buildup in the gas valve outlet blocking the main gas flow. Take the valve apart and clean it.
Posted on Jun 14, 2009
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