Question about Williams 2509612 Ceramic Mid-Size Heater
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Posted on Jan 02, 2017
Joss sounds like the anticipator setting on thermostat i would replace it with a digital it will be more actturat . The furnace has to go over temp setting to turn off
Posted on Jan 18, 2009
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 10, 2010
i vacuumed the line out, i taped the angle adapterso there was only a little bit showing and stuck it on the pilot hole for 3 minutes (I turned the gas off) and it fixed it
Posted on Jan 21, 2010
Try jumping the two thermostat wires together to see if the heater starts. If so, replace your thermostat. If not, jump the two terminals where the thermosta twires attach to the furnace. If it starts, you have a bad thermostat wire or connection.
Posted on Jan 30, 2010
they will be air in the gas line , and the pilot injector being so small it will take ages for gas to come through , you need to purge the gas line undo a union or nut or pilot suppy to purge the line of air test joints after with soapy water .
Posted on Jul 09, 2010
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