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Re: heater not working
ALL ELECTRIC HEATERS HAVE LIMIT SWITCHES THAT KILL POWER WHEN A HIGH TEMP IS REACHED YOU COULD HAVE ONE OF THOSE LIMITS GOING BAD OR IT COULD BE THAT YOUR FAN IS NOT PRODUCING ENOUGH AIR FLOW ACROSS THE HEATER TO KEEP IT FROM OVER HEATING THE LIMIT. PLEASE DESCRIBE THE NOISE YOU HERE
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I guess your talking about a foodsaver. The noise is from the vacuum pump and is usually a little loud. You shouldn't need to keep your button pushed. Is it working when you just hit the vac/seal button and release? If your holding it the whole time, it may be starting another cycle.
EE 2 can be caused by a couple of things but is usually a fuel issue or a flame rod problem. The circulation fan will not come on until the burner has warmed up. The combustion blower should start almost as soon as you turn the heater on. Turn the heater on and listen for the combustion blower. If it doesn\'t start, do you get an error code? If the blower started wait for the fuel pump to come on. It will start when the burner lights come on. If the fuel pump makes a loud ticking or thumping sound, it isn\'t getting any fuel. Check the fuel filter and the strainer in the fuel sump. Make sure the valve is turned off at the barrel before removing the fuel strainer. If the fuel pump is working normally, does the heater light up. If it doesn\'t, check the igniter. You can check that first if you want and have a clamp on ammeter. Place it around one of the igniter leads and you should read 2 to 4 amps when you turn the heater on. If the heater does light but then cuts off after about a minute, clean the flame rod. Unplug the heater before removing the flame rod because it may kill the circuit board if the heater is plugged in and the flame rod touches ground. Let me know what you find.
This will cause the main burner to run untill the over tempreture switch is tripped therefore shuting gas supply and running fan on high till over heat condition is resolved then it will restart burner and repeat
continuing to run heater like this will cause heat exchanger split.
If the noise is not coming from the fan as Buffalo suggests, it is most likely the expansion and contraction of the heat exchanger. The old school way to lessen the noise of expansion is to bank the combustion chamber with a hammer. I don't recommend it today because the metal is so thin (thus all the noise) and you may damage it. You will get used to it and the noise may soften the more it is used. You will never get it to stop.
the buzzing is normal. there is an element inside the quartz tube much like a filament in a light bulb. as this heats up it starts to move. where you have electrical energy you also have magnetism produced. metal objects vibrate when they are in or within a magnetic field. the element is tungsten wire and vibrates off this magnetic field.