GDS80703ANA Open Flame Mid-Size Heater: have brand new heater got gas was running first t...
Hi, It says this problem is still not solved, but its been 4 months ago? Anyway, when this happens, the inducer motor will start on a call for heat, close the pressure switch and then the glow plug will turn orange or a ignitor module will turn on for a few seconds and then the gas valve should be energized by the control module to open and start the heater. So, on your heater you will have what is called a flame sensor that lays along side of pilot tubing and is porcelin with a metal tip and a wire coming out the back that plugs into the module. It senses heat by pilot flame or direct heat and will send a signal back to module to open main gas valve. If you have no pilot at all, you need to check to see if you have gas to the unit first. Get a good sized adjustable wrench and loosen the gas flex coming to the valve to see if you smell and hear natural gas. Bleed it off to get any air it may have. Tighten back down and make sure you have no leaks. You need to get a cheap digital meter. They are very inexpensive. Go to Sears tools and get one for around $19.99 a craftsman.Set the dial to ac voltage the lowest setting above 24 volts what ever the scale reads, such as 200 vac.Now start you furnace, but be for you do take the red and black leads of the meter and put the red lead on one of the connections that reads MV and other to C. Now start the heater and let it go through the sequence of operation. When the ignitor starts to click to light the pilot, the meter should read 24 volts at the valve. If the vale has more then 2- wires, see if it is marked PV and put your red lead to this the pilot valve. As it is clicking there should be 24 volts ac there to open pilot valve. If not, the control module is faulty, only if there is 24 volts to it and you had gas at the flex line. If you have no voltage to this gas valve when the control module or board is clicking, this module will be faulty as it is not putting out 24 volts to the gas valve if you have gas to it. This is a simple check. If you can see a pilot light back there and the gas valve will not open, you will need to check this flame sensor. Carefully remove it. Take a light piece of sanding cloth and clean up the metal tip on it. Now install it and make sure the tip is in the pilot flame. Start it back up and it should fire the MGV to open right away. This should have taken care of your problem. let me know the out come.
A/C, & Heating Contractor
May 16, 2010 |
Goodman GDS80703ANA Open Flame Mid-Size...