We recently bought a home, and it has a procom heater in it. However, when we try to start it, it will run for a while and then just turn off. It isn't the ODS in operation, as we have always had plenty of fresh air in the house, even going as far as to open windows and doors when running the heater. What is the problem?
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Re: Just turns off?
From my memory, this is an unvented model. The ODS could be bad and turning off the unit or you could be experiencing a bad thermocouple. If there is any way to temporarly bypass the ODS, I would try this first. Do not run this unit unattended. If the unit stays on when the ODS is bypassed, you found your problem. If not, change out the thermocouple. It is a small diameter copper probe that goes from the gas valve up to the pilot light.
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You could try cleaning up the thermocouple with steel wool. Some manufacturers call this a flame generator as well. Any how make sure it is clean and positioned in the top center of the pilot light for best signal. This is only speculation as these are common problems that will arise on heaters in general. This also turns the gas to the burners and pilot light so thats why to start here first. Hope this helps you out.
Control knobs can be purchased from Procom customer service at 877-886-5989. If you can't find them there, call Kozy World's customer service department at 800-776-9425 and tell them you need a control knob for a KWN109 (same size heater, manufactured by Procom, so same control knob).
If you have an ML300HGA, it is a manual-control heater, which means you turn it on and you turn it off. No thermostat. It does not have an AUTO setting.
Likewise, the thermostat-controlled models do not have a Manual mode. If you have the ML300TBA, it has a thermostat and will turn itself on/off in order to maintain a room temperature.
On manual models, the numbers (if any) on the dial are heat output selections. Set the control to the highest heat setting and that's what it does until you turn it off.
On automatic thermostat models, the numbers on the dial are temperature selections. Set the control to the highest heat setting and the heater will continue running until it is 85-90 degrees, then shut off. Set it around 2 and it will maintain a temp of around 70 degrees.
All Procom heaters are either automatic (thermostat-controlled) or Manual. None are both.
The QL300 has a range of 20,000 to 30,000 btus. That shouldn't be too big for your 300 square foot room with high ceilings and a loft. It has a thermostat, so it will shut off when the room gets warm. 1 pound of propane contains about 21,000 btus, so you will be burning 1 to 1.5 pounds each hour that the stove is running.