Question about Goodman GMS90703BXA Heater

1 Answer

Goodman gmp150-5 Three blinks of trouble code

I had a repair man out here the other day, he was here 15 minutes and told me the circuit board was bad. I questioned his diagnosis, especially when he wanted over $500 to repair. I went on the internet and found a replacement board for it and installed it myself. Much to my surprise, the furnace did the same thing. I checked the exhaust vent and looked around the vent pipe and saw some like white or salty deposits around the pipe vent joint. It looked like ash. I disconnected the pipe and vacuumed around the vent and tried the furnace, this time it started up and ran fine until I tapped on the vent pipe looking for looseness then the flame went out and went into shutdown mode. Any suggestions?

Posted by on

  • nablus Nov 21, 2008

    It blinks three times and does not start, I called a repair man he shook the wires then it worked and said if it stops again the board is bad ,now i have no heat should I trust the repair man and change the board or may be a loose wire somewhere




1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 7 Answers

The problem sounds like it is with your combustion fan motor,,,there are two types. one has a syntrifical swith the others have a round box with a hose going to it that is a pressure switch, if it is the motor does not have a rubber hose coming off and has two wires instead than that is syntrifical and your only shot would be to take the moter loose and shake it out make sure there is not something that fell down in and kept it from turning, other wise u have to replace. by the way it will be the small motor at the base of the vent pipe. If it is the hose type try unplugging the two wires from the little round box that the hose goes to and connect them together if it runs by bypassing that then either the switch is out or something is plugging the hole or hose,,on the side of the blower moter where the hose comes out try poking something through the hole and make sure it is not clogged I bet this is the kind u have and the problem. good luck

Posted on Oct 25, 2008

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Problem with Goodman furnace electric ignition

Power is there, or no lights would blink. Steady blinking or flashing three times, stop, three times Etc

Nov 23, 2011 | Goodman Heaters

1 Answer

Goodman furnace GMP075-3 The thermostat was in the off position over night and sometime during the night, the induced blower and blower motor came on. The trouble light on board blinks 5 times. I checked...

Need your model # to check the codes but, this coming back on after turning the t-stat off is rare. You may have been in a lockout and the furnace re-started. Some furnaces try to start three times , then lock out. Time out, then re-start. The codes should be on your furnace blower door. Write back with this info and i could help.

Oct 12, 2011 | Goodman GMS90703BXA Heater

1 Answer

The circuit board is blinking three the light is red

the door with the lights will come off and inside there will be a code chart. the door must be replaced correctly for the furnace to work again

Feb 09, 2011 | Goodman Heaters

1 Answer

Gas dose not come on

The blinking light is giving you a trouble code for the unit. It should have a label or something inside the unit or in your owners manual to let you know what the code means. Count the number of blinks. It should repeat over and over.

Jun 06, 2010 | Goodman GMS90703BXA Heater

1 Answer

Goodman GMNT 60 Furnace. Burners shut off after a minute and will not re-light. Board has one blink code says gas valve or flame sensor problem. Replaced flame sensor. Gas valve has a steady 24 volts and...

No, the board isnt out. The board has a code telling you that its out. Its your flame sensor. You wouldn't have gotten any heat if the gas valve was out. check if that flame sensor goes to another sensor on the same circuit , if it does check that. If it just a one wire sensor make sure its in the right position. If its a one rod flame senor with one wire I would sand it down with sandpaper. if its a two wire senor ohm it out to see if you ger current going through it.

Oct 16, 2009 | Goodman Heaters

2 Answers

GMP075-3 looks good but shuts off after 10 seconds

Replace the thermostat control sounds like the control contacts are not holding since you cleaned the bulb and the igniter is working the only other issue is the thermal buld being bad, shut it off heat the bulb for three minuts then quickly turn it back on and see if it stays on longer if it does the bulb is the problem.

Oct 07, 2009 | Goodman GMS90703BXA Heater

1 Answer

Goodman Model GMNT100-4 Auto Power Down and Up until Temp.

Keep in mind all furnaces and circuit boards are not the same. Look on the back of the door to the blower compartment. You should find the list of diagnostic codes. Look up four blinks it should narrow down the problem. Although from the discription you gave it sounds lie the high limit control. When a high limit appears to be acting up it DOES NOT mean that the high limit needs replaced. The high limit just may be doing its job. This means that the furnace is overheating. Check your filters. Are all of your registers open? Is your blower set on the right speed? Is your blower going bad? Is the blower motor capacitor bad? Is your evaporator coil restricted? Just changing a high limit switch does not always solve the original problem!
Good luck....

Apr 01, 2009 | Goodman Heaters

1 Answer

Circuit board blinks four times

check your filter if thats clogged that will send a four flash limit open or your blower motor might be bad these units are known to have popped rings and cracks on thier heat exchangers if there isnt enough airflow if your filter is clogged or motor is shot i would call someone monday and get your heat exchanger inspected

Mar 11, 2009 | Goodman GMS90703BXA Heater

1 Answer

Furnace shut off after 3 time flame from pilot

Sounds like you may have a weak or bad flame sensor. If the circuit board does not sense a good flame it will not light the burners. Also if your furnace is 5 yrs or newer it should give you a fault on circuit board in the form of a blinking or a code itself.

Feb 15, 2009 | Goodman GMS90703BXA Heater

2 Answers

Three blinks - what does it mean

The safety limit inside the blower section has tripped.

Oct 31, 2008 | Goodman GMS90703BXA Heater

Not finding what you are looking for?
Goodman GMS90703BXA Heater Logo

400 people viewed this question

Ask a Question

Usually answered in minutes!

Top Goodman Heaters Experts


Level 3 Expert

1901 Answers

Dan Webster
Dan Webster

Level 3 Expert

8147 Answers

Ken Thomas

Level 2 Expert

118 Answers

Are you a Goodman Heater Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides