Question about Procom ML300TBA Heater

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Procom ML200TBA It sounds like one of you out there might be able to help. I bought a ventless ProCom ML200TBA for my shed. I planned to supply LP gas from a 20 lb gas grill tank. I'm connecting to the heater with a hose/regulator that I have from a defunct propane heater. Gas flows freely from the open end. But when I connect it to the regulator in the heater, the pilot won't light. Any ideas would be appreciated. Gary

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  • Gary Booth Sep 18, 2007

    Thank you for your help. In fact you were right on. The regulator I had tried to use was from a fan forced propane heater, way too much pressure. That excess pressure had pressed a tiny plunger device upward into the heater regulator inlet. Presumably some safety feature to protect people like me from ourselves. This prevented the heater regulator from damage but also prevented it from lighting, fortunately. I switched to the proper much lower pressure regulator and the unit has worked fine since. Thanks again, Gary.

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Propane appliances usually run on 10-11 inches of water column, this is about 1/2 pound of pressure. If the regulator you have is not rated for delivering gas at that rate, you will need to find one that does. If your regulator is rated for more than the 11 inches, most likely you could have damaged the appliance regulator that came with the heater. Check the propane pressure specified by the heater manufacture against the rated supply of your regulator and see if they match. Make sure the heater is rated for Propane and NOT Natural Gas. Check to see if the gas valve on the appliance is in the operate position and all valves are open. Bleed off the air in the gas line by holding down the pilot switch and keep attempting to light the pilot. It could take you a few minutes. If you hear and smell gas but the unit will still not light, don't chance at getting hurt, call a technician. Look to make sure there are no safety switch that may have triggered off not allowing the gas valve to operate. And make sure there is no obstruction in the heater?s gas valve blocking off the supply of gas. Always exercise caution when it comes to gas and if you are uncomfortable, call a qualified gas technician.

Posted on Sep 17, 2007

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