Question about Goodman GMS90703BXA Heater

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Picture of flame rod&heat sensor on goodman gmv95 furnace

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: No heat, trouble shooting light has continious flash.

Try replacing the filter. Low air flow will allow the furnace to overheat. Sounds like a simple answer. Wish I had tried it before buying a flame sensor and controller. Live and learn I guess.

Posted on Jan 02, 2007

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WebTeligent
  • 42 Answers

SOURCE: No heat, trouble shooting light has continious flash.

There is a vacuum sensor on most units tied from the exhaust gas fan to the sensor. Does the unit try to start? If the unit's exhaust fails to pull the switch it will turn off after about 30-45 sec after starting. "IT" thinks it's not exhausting and stops to keep from overheating. Do you have this exhaust fan and rubber hose to sensor? Can you see if that fan is turning on start?

Posted on Nov 10, 2007

Therinnaiguy
  • 1420 Answers

SOURCE: flame sensor on a goodman heater

The flame sensor will be located either left or right of the burners and there will be only one wire leading to it. It is positioned so the flame hits it last. So if you watch your flame spread, it will be on the side last to see flame.

Posted on Nov 11, 2008

  • 1 Answer

SOURCE: goodman gmp075-3 led blinks 5 times

After fighting this thing for 2 weeks, I changed out the circuit board tonight and I have heat!!!! Barnett Brass is where I got it. $100

Posted on Nov 14, 2008

  • 2 Answers

SOURCE: I have a goodman gmpn 100-4 furnace. It will not

Clean the flame sensor with a scotch brite pad....gently and replace it.

Posted on Oct 03, 2010

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1 Answer

What's wrong with my furnace?


The relay for the motor is stuck or the points inside the relay are arced closed. Replace the relay.

Apr 26, 2016 | Goodman Janitrol Amana Goodman Janitrol...

2 Answers

What's your problem? goodman furnace lights, burns 10 secs goes out


Hello,sounds like you have a dirty flame sensor. This is a metal rod on the oppositenside of the hot surface ignitor. turn off power to the furnace and remove the flame sensor, then use steel wool and clean the flame sensor and reinstall. Next turn back power to Furnace.

Nov 18, 2011 | Goodman Heating & Cooling

1 Answer

Fan is blowing in furnace, thermostat raised 10 degrees over ambient temperature and not heating home. Red and green lights blinking intermittently on control board.


Cycle the power first & see if the furnace goes through the normal sequence of order. On a call for heat, the vent inducer motor should turn on and the pressure switch should prove negative draft in the heat exchanger. the board then should power the ignition phase whenter it is hot surface ignition, or spark, you should hear a spark or see the orange glow of the ignitor & the gas valve is timed to turn on. If you have proper gas to the furnace, it should allow the gas to flow through the gas valve & ignite the flame. Once the flame is ignited, the romote or local sensor should sense the flame & the blower then kicks on from the time delay in the board. If you don't have any ignition, then something is wrong with either the ignitor, ignition module, pressure switch, or you have a manual limit that is tripped(this looks like a small 1/2 inch disc with a reset button on it) If you have ignition & the flame lights, but drops out, then your flame sensor is dirty & needs a touch of sand paper to clean it up(this looks like a 3 inch metal rod opposite of the ignitor) Make sure your power is off when you clean the sensor if you need to. Also if there is no ignition & the vent inducer motor is running... if it is hot surface igniton, there is a molex plug on the leead wires to it- disconnect & check continuity- should be under 110 ohms.

Sep 03, 2011 | Goodman GMS90703BXA Heater

1 Answer

Thermostat calls for heat, purge motor turns on, 15 seconds later hot igniter turns on, then gas turns on and burners are lit. Problem is, they only stay lit for 5 seconds then shut off and cycle repeats...


,Hello, Make sure the flame sensor is clean near the burners, The flame sensor is a metal rod that is on the opposite side of the ignitor. To clean the flame sensor you will need some steel wool, turn off power to the furnace and remove the flame sensor and clean it with the steel wool. After cleaning reinstall it and turn power back on to furnace.

Mar 02, 2011 | Goodman Heating & Cooling

1 Answer

I have a Goodman GMS8 furnace. The unit will start up but then go off so we have no heat. The LED light is not blinking and the rod gets red but then it goes out. What could the problem be?


Does the furnace fire then go out? If it fires then goes out its most likely the the flame sensor. This will be a steel rod that is in the path of the flame when it fires usually opposite end of ignitor. Take this off and clean it with steel wool or very fine sand paper. Make sure to pick the right part, the part that glows red is your hot surface ignitor and should never be touched as the grease on our fingers will react with the silicade nitrade and cause failure.

Dec 13, 2010 | Goodman GMS90703BXA Heater

1 Answer

On my goodman gmv95 blower starts, glowplug lights, gas turns on, then glowplug goes out and gas shuts off. any suggestions what the problem could be?


You did not mention how long the main burner stayed on. If it stayed on only a few seconds, most likely you have a dirty or bad flame rod. The flame rod is located in the flame path of the last burner to ignite. Take a toothbrush and scrub off any debris that may be on it. Also check all the wire connections from the rod back to the circuit board.

Feb 13, 2010 | Goodman Heating & Cooling

1 Answer

Goodman GMP Furnace problem. Original problem is


Good one! Is the flame getting to the flame sensor within the few seconds? Maybe a good cleaning of the burners or flame tray would help. 1.3 ma is enough for the flame rod to tell the board to stay on. Re-do all the ground connections both at the board and furnace cabinet to be safe. Check the polarity of the power going to the furnace. What are the chances the second board is bad?

Jan 15, 2010 | Goodman Heating & Cooling

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 gas furnace


Sounds like it coud have been a flame sensor. the limit switch is usually near the top of the heat exchanger.

Nov 02, 2008 | Goodman Heating & Cooling

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