Question about Goodman GMS90703BXA Heater

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RED BLINKING (6TIMES) ON FURNACE

I HAVE A GOODMAN FURNACE MODEL GMPNO80. RED BLINKING LITES 6 TIMES TO CHECK FOR FOR ROLLOUT LIMIT SWITCHES AS INDICATED. I FOUND 3 LIMIT SWITCHES AND HAS CONTINUINITY AND SEEMS TO BE IN GOOD CONDITION. PLEASE HELP WHT OTHERS COULD BE THE PROBLEM.

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  • ccabalum Jul 27, 2009

    Roll out switches are good. Any other sugestions?

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  • 148 Answers

THE ROLL OUT SWITCH IS LOCATED IN THE BURNER COMPARTMENT MOST CAN BE RESET

Posted on Jul 20, 2009

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1 Answer

Top rollout switch triggers with blinking code *6*, Furnace only runs with cover off


restart unit as soon as your inducer fan came on pump the 2 wires to pressure switch and wait to see how long it stay also watch the flame at the burner

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1993 goodman status light 4 times blinking


Witch blower is running, the inducer or the systems blower?
System blower could mean the the high limit is opening and shutting down the systems gas train, I would check this out first.

The other problem could be with the pressure switch for the gas train, it is supplied from the inducer motor, check to see if it is operating fully.

HSI boards do go from time to time, this sounds more like a system control problem.

Jan 24, 2008 | Goodman GMS90703BXA Heater

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Igniter isnt lighting


IF YOU LOST POWER WHEN FURNACE WAS RUNNING IT TRIPPED ROLLOUT SWITCHES AND POSSIBLY THE HIGH LIMIT . IN CENTER OF ROLLOUT SWITCHES IS A LITTLE RED BUTTON THAT YOU RESET . YOU CAN ALSO TRY FINDING HIGH LIMIT WITH POWER SHUT OFF TO FURNACE PULL BOTH WIRES OFF HIGH LIMIT AND USE PAPER CLIP TO JUMP BETWEEN THE TWO WIRES MAKE SURE YOU DONT SHORT OUT AGAINST ANY METAL WHEN YOU TURN BACK ON IF IT WORKS YOU NEED A NEW HIGH LIMIT SWITCH.

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1 Answer

Blower motor makes noise, but does not work goodman


its either a bad motor or bad capacitor if you try to spin the wheel by hand and it starts then its the capacitor

Dec 26, 2012 | Goodman Heating & Cooling

1 Answer

We r in our NEW house built in 2008. HVAC unit looks clean, & New. our A/C do not work, or kick on. the unit is Goodman during troubleshoot found-open rollout ->6 flashes gmh80704bn -...


If you didn't reset the rollout switch, the air will not work. The rollout switches are in the furnace burner secton. Look at the burners, the rollout switch(es) are just above the burner. They will have a button on top to push for reset. These rollout switches will generally have two wires going to them.

May 18, 2011 | Heating & Cooling

1 Answer

Coleman home heater stops working fault code "limit switch open"


How do you test a pressure switch and other limit controls?
This is for people who are experienced with electrical equipment and the use of a Volt Ohm meter. *Please never by pass a pressure switch or limit control. The pressure switch and limit switches are there for your safety. You would test by setting your volt meter to "Volts AC" and test the rollout switch by placing one meter probe on one terminal of the rollout switch and your other meter probe to a good ground. Have the red probe touching the top terminal of the rollout switch and the black probe touching a ground (body) of the furnace. You should be getting 25.85 volts which means the rollout is good on the top terminal. I would next test the bottom terminal of the rollout by touching the red meter probe to the bottom terminal on the rollout switch and the black terminal to ground. If I get 25.85 volts on the bottom terminal the rollout is good. If I do not get any voltage on the bottom terminal then the rollout has tripped and can be reset (if equipped) by pressing in on the little button or replaced. If your rollout switch is tripped you probably have a stopped up heat exchanger or a leaking heat exchanger. I would recommend calling in a service technician to find out why the rollout switch tripped. If you have an open limit control either the furnace has over heated or the limit has gone bad. Problems that would make a limit open up would be dirty filters, dirty evaporator coil causing a restriction in the air flow or a slow blower motor (check the capacitor on the blower motor to make sure it is good). A weak blower motor capacitor will cause the blower to run slow and eventually fail. Pressure switches, and limit switches can be tested with a meter in the same manner. With the furnace calling for heat you can test each of the terminals on the pressure switch to ground to make sure the pressure switch is closed. You should be getting between 24 to 28 volts from each terminal to ground if the pressure switch is closed. If the pressure switch is open you either have a stopped up vent, drain line (if you have a condensing furnace) or bad pressure switch.

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1 Answer

Where is the heat sensor on a goodman furnace


Heat sensor....Or a flame sensor. Flame sensor is connected to a "single" wire under the buners usually found on the left side. Heat sensors (or flame rollout switches) are found surrounding the burner box. The most common bad one will be located just above the burners. it "should" have a small reset button in the middle just between the two wires. If the furnace does light even for a short time the rollout switch is not bad.

Mar 03, 2009 | Goodman GMS90703BXA Heater

1 Answer

Goodman GMP125-5 limit switch open


There may be as many as 6 limit switches on the furnace. The first thing to do is turn off the power to the furnace. Look around the burner box. You will see possibly 3 small maybe brown plastic swithes with two wires to each and a button between the wires. Press the button on each one. If it clicks that's the one tripped. There may also be the same kind of switch(s) in the blower compartment. There's a self resetting limit on the middle of the furnace it also has two wires but looks like a black or dark brown plate about 2 1/2 X 3 1/2 inches. You have to check that one with an ohm meter. If any of these switches are tripped there is a reason. Check your filter and overall air flow. with low airflow the furnace may overheat. The switches around the burner box are roll out switches. Watch to see if flames are coming out of the burner area. especially when the blower comes on. DO NOT bypass any of these switches. Call a certified tech. to check it out.

Mar 02, 2009 | Goodman CLJ30AR32 Air Conditioner

2 Answers

I have a goodman gmp075-3 and it is flashing # 4 code


There is a Primary High Limit Switch towards the middle of the furnace, it more than likely needs to be replaced, very common to go out only after a few seasons. Also, you could have a flame rollout switch tripped that will signal the same code, these switches are re-settable and are located on the outer, top and sides of the burner assembly, they’re about ½ inch in diameter with a red push button in the center and two wires “ usually purple” coming off of them.

Hope this helps

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