Question about Goodman Heating & Cooling

1 Answer

My goodman model gmt070-3 is not igniting. it gives me a blink code of 3, which says its a pressure switch or vent blockage. i pulled the pipe and its clear. what does the pressure switch look like and how do i test it?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Goodman Master
  • 43,501 Answers

Hi,

The pressure switch will look something like this

my goodman model gmt070-3 is - heatman101.jpg

They do go bad sometimes or the tubing may get kinked or have water in it....check all of the tubing that goes to it...

To test it you will need an OHM meter and see if the contacts close if you pull a vacuum on it...

I often just s u c k lightly on it....to see if I hear it click faintly....

but then that is not fail proof either... it can trip that way but not with the vacuum from the fan....

They are not a high $$ item and I would just try replacing it if nothing else seems to be wrong...

heatman101

Posted on Nov 07, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My Goodman furnace, model GMS80903BNA, is not working. I removed the back panels and checked the pressure switch. That seems to be working fine. The exhaust inducer spins up, the igniter starts to glow,...


That blinking 3 times is indicating a pressure switch problem. Try checking for water or a blockage in any of the hoses going to the pressure switch or condensate drain. Check the air intake and exhaust pipe for any blockage including any saggs that may hold water. Make sure condensate drain or pump is working. If you get a glow from the igniter, there may be a blockage in the gas valve or piping.

Jan 23, 2011 | Goodman GMS80903BNA Heater

2 Answers

I have a gms8 furnace that will not light. The error code that I get is 3 fast blinks


Sorry to read about your problem, I hope this helps you out.

3 Blinks represent a problem with the combustion fan, pressure switch or a vent blockage.

if you have snow, it could be blocking the intake vent. if not that, most likely a defective preassure switch.

I tried to help you. Please help me and Rate/Vote on my response. We take the time to answer your question's. take the time to rate us.Thanks and good luck

4 Thumbs - Very Helpful
3 Thumbs - Helpful



Jan 02, 2011 | Goodman GMS90703BXA Heater

1 Answer

Light blinks 3 times on a Goodman model gmh80453an


Three blinks is an indication of a pressure switch error. Check your air filter, condensate pump or drain, vent termination and air intake for blockage or debris. Also check the inducer housing assembly for a build-up of water. Pull off the hose(s) going to the pressure switch and clear out any moisture. You may be able to jump out the pressure switch only after the inducer starts blowing to test it. If it starts, the switch is bad. If your venting runs horizontal for any length, make sure there is no build-up of water in either pipe by tapping it and listening for a thud. It should sound hollow and echo when you listen. If you **** in on the pressure switch very lightly, you should hear it make contact and you can test it with an Ohm meter for continuity. Hope this helps!

Jan 18, 2010 | Goodman Heating & Cooling

1 Answer

I am getting the pressure switch blockage and the three red light code. Replaced the pressure switch and still does not work


Hi, the pressure switch won't close error isn't always caused by a defective switch. Occasionally, there really is a blockage in the vent system and that is why there is a pressure switch. You should check for such a blockage, usually caused by a smashed vent cap or spider webs in the vent pipe. Good luck.

Jan 11, 2010 | Goodman Heating & Cooling

1 Answer

Goodman furnace wont come on


If this is a High Eff furnace:
1) Remove the compartment that has the igniter and burners, turn the
power back on, if the furnace lites then you have a problem with the
intake air vent, probably iced over if you live where its cold.

2)Make sure the exhaust vent is not getting backpressure from the
wind.

3) you could cut the pipes on the inside of the house to disconnect them from the furnace, test run the furnace with no pipes.If the furnace
runs then you have a problem with the installation of the vent pipes.

4) Do not run the furnace without the exhaust pipe disconnected,
go to the hardware store and get a couple of rubber clamped
couplings and hook-up the exhaust pipe!

Good Luck

Jan 09, 2010 | Goodman GMS90703BXA Heater

1 Answer

The led light blinks 3 times then pauses then


Pressure switch error code, Check the air filter for blockage, check the vent pipes for blockage or water, make sure the condensate drains are working and that there is no water in the hose(s) that go to the pressure switch(s).

Jan 06, 2010 | Goodman GMS90703BXA Heater

1 Answer

Three blinks on gas furnace, will not maintain flame


3 blinks indicates a pressure switch error. Check or replace air filter, condensate hoses for blockage, check small hose uo to pressure switch(s), check the vent pipes to make sure they pitch back to the furnace, check the air intake and exhaust pipes for any blockage outside. If all looks good, jump out pressure switch as soon as the exhaust fan starts to turn and see if unit starts. If it does, replace pressure switch.

Dec 01, 2009 | Goodman Heating & Cooling

1 Answer

GMP075-3 heater no igniter voltage


Check the venting for a restriction, check the condensate hose for blockage, check the pressure switch and hoses going to it. And make sure the small exhaust fan spins freely.

Nov 20, 2008 | Goodman GMS90703BXA Heater

1 Answer

Goodman GMS90904CXA Wont ignite, light blinks 3 times


Ok, you either have a inducer fan issue or a pressure switch issue or a plugged vent pipe. The inducer turns on to establish a draft for the exhaust. If it is not working you will get this error code. If the pressure switch does not sense pressure caused by the inducer, it will give this code. If either the intake pipe or exhaust pipe is blocked (even y just a little) it will give you the same error code. If the condensate hose or receptical is plugged, again it will give you this error code. Good Luck!

Oct 20, 2008 | Goodman GMS90703BXA Heater

4 Answers

Goodman code problem three blinks


Same problem with 1 yr old Goodman. Checked entire exhaust and pressure switch. Inside fan, pressure switch hose clogged with crusty white gunk. Cleaned it & furnace fixed. I have no furnace repair experience, but love to "play MacGyver". Hopefully this could save someone a service call.

Sep 18, 2007 | Goodman GMS90703BXA Heater

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

113 people viewed this question

Ask a Question

Usually answered in minutes!

Top Goodman Heating & Cooling Experts

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

paulcarew

Level 3 Expert

2458 Answers

Brandon Berry
Brandon Berry

Level 2 Expert

407 Answers

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

Answer questions

Manuals & User Guides

Loading...