Question about Coleman (5040B750) Patio Heater
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Posted on Jan 02, 2017
SOURCE: Coleman patio heater 5040A770
These heaters are not designed to be operated below 40 degrees F. If the heater is used below 40 and if you have a gas tank containing less than 25%, the unit will not operate for long and will start going out. If the heater all of a sudden goes out without showing any flickering or pulsations, you have a bad gas valve, there is no thermocouple on this model. Fill your tank and try the heater again. If it continues, give Coleman a call at 800-835-3278.
Posted on Nov 15, 2007
you may need someone to come in and adjust your pressure regulator that is inline to heater this is what controls the output of propane and should only be adjusted by a pro
Posted on Apr 15, 2009
Make sure all switches are on and open. It may take a few attempts to get gas to the burners so you may have to reset the furnace by either the Emergency switch or circuit breaker. If it takes longer than 3 tries, you may have a gas regulator problem and will need to call your gas company for repair. The regulator belongs to the gas company so they shouldn't charge you to repair or replace.
On a call for heat, the 24 volt thermostat sends a signal to the control module. The control module will indicate a call for heat with a light on the control either blinking or remain solid depending upon model. The inducer (exhaust) blower will purge all gasses from the furnace and pressurize a pressure switch. Once the pressure switch tells the module to continue, the electronic ignition will energize and send 120 volts to the igniter. The igniter will glow and you will be able to see it if viewed thru the small inspection port. Once the igniter gets hot enough, it sends a signal to the module opening up the gas valve (24 volts). Either a pilot will come on or the burner tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air blower will turn on in a minute or two.
What could go wrong? The unit will not run if there is no signal from the thermostat (bad thermostat or broken wire), the control module does not sense a signal from the thermostat (bad control), the inducer does not energize (bad motor), the pressure switch does not close (blocked vent piping, bad switch, plugged condensate hose), the igniter does not energize (bad control, bad igniter), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not light (dirty pilot), the burner does not light (bad burner, plugged orifice, not enough combustion air), the flame does not spread to each burner (bad flame spreader, dirty flame spreader, more bad burners), the flame safety sensor does not detect flame (dirty or bad flame spreader, bad flame sensor, broken wire, bad control), or the room air blower does not energize (bad fan motor, bad control).
Posted on Jan 04, 2010
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Heaters that have rusted are tin plated or chrome finish, it can be hard to get a stainless steel heaters since some traders sell heaters as stainless steel but don't tell you the burner is made of tin. If you get a new heater just ask the question, is the burner tin or stainless steel? The problem with a burner that goes out can be a simple as changing the thermocouple, these are consumable and last between 2 to 5 years depending on use and storage. But if you have a yellow tipping this is not good, this can be caused by wrong fuel mix or faulty gas valve and is not an easy fix. Found this site very useful patio heater problem solving. Lots of info.
Posted on Nov 09, 2011
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