The owners manual says to replace the circuit board. Our technician tried one and thought it was no good as it would not start at all. he got another board and that did not work either. On calling the company they said that this furnace was made for California. We live in Wisconsin. So there must have been a big change in the circuit board because my furnace will not start with the new one. My Goodman Furnace GMS8 single stage will not keep running. Sometimes it runs for several hours before it starts the one blinking (meaning something is wrong) I need help.
One thing to try is to check the voltage coming to the furnace to see if it is correct. They do have separate furnaces for California because of the NOX compliable laws but the boards according to my vendor are all the same. Look on the new board to see if you see any of these numbers # PCBBF112S or 01030F00005S. If you do have one of these numbers it is the correct board. If not change the board or if voltage is wrong get that corrected and you should be fine
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Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.
Warranty? Owner's manual troubleshooting section? Sounds like a bad circuit board, and time for GE technician. I'd ask them for the worst cost repair. You may want to consider a lightly used replacement.
Owner's manual flashing number of times probably is an error code. Owner's manual troubleshooting probably will explain the
error. Are you sure the unit has power? doublecheck your Circuit breaker box. Probably a 220vac breaker. Breakers do wear out.
So you may need electrician or AC Technician.
If you're comfortable working around electricity then you might try trouble shooting a few things. Most HVAC (heat, ventilation, air conditioning) systems have a window which you can view the circuit board and a blinking led light. The number of blinks corresponds to the error code that is occurring. Some models have an explanation on the inside of the removable access panel. A few things to check for: Does the ignitor glow on start up? If not, the blower will start but then shut down. No glow, no ignition, the safety feature will not allow gas to flow. At that point, check the ignitor, it will be the cheapest to replace. If it glows, I would then check the sensor probe. If the sensor probe does not detect heat (or it went bad) then gas will be shut off for safety. After that, then I would move to checking the Controller Board. This is a little more involved and more expensive. But it really depends on how adept and handy you are. Good luck.
Hello, verify if the igniter is receiving a 120 volts from the control board after the pressure switch closes. Sometimes a faulty control board can cause this problem if the igniter and pressure switch are good.
Remove the front panel and tape down the door safety switch so the unit can turn on when door is off. Turn up thermostat to make sure there is a call for heat. The circuit board should indicate a call for heat with either a blinking light or a solid light. Then the exhaust fan should turn on clearing the venting from any fumes. When the fan has ran for a few seconds, the igniter should start glowing orange. After it reaches a predetermined temperature, the gas valve should open with a click. The flame will start at the burner closest to the igniter and travel away from the igniter. There is a small flame rod located in the flame path on the last burner that tells the circuit board it feels the flame. If the flame goes off within a few seconds of starting, you have a dirty flame rod. Clean it with a scotch-brite pad. Once you get the flame to stay on for 90 seconds or so, the room air blower will turn on. If it tries 2 or 3 times to start but does not, the circuit board will record a code and display it with a blinking light. Look on the door panel for a wiring diagram. There will also be a Diagnostic chart that will tell you what the pattern of blinking lights represent.
These furnaces goes thru 4--steps for complete run time.... step-1, the small draft inducer blower motor blows and prove thru the small air tube that sucks a switch close to tell the circuit board to go to step-2......the glow plug glows for 15 seconds and step 3 the gas valve opens and dump gas in the venturi tubes and lights off the glow plug and proves thru a flame sensor (pin with 1 electrical wire connection) on the last venturi tube which tells the circuit board to go to the last step 4--, to turn on the main blower fan after 90 seconds!. Where ever it stops at then thats where your problem is!
Sounds as thought you have a dead B+ from the power supply board. Replacement of the board should be a certain fix. The power supply could be fixed with the help of a good service technician. I hope this has helped.