Goodman/Badfurnace:GMP125-4 Gas, On Ignition

fitzy888

Goodman Goodman (GMP125-4), gas, no ignition

I mention the following that it may help someone with one of the many problems they can expect with a Goodman Furnace. Mine came with the house, we bought from an old couple (nice house) they got screwed for $3,000 on this POS perpetual service requiring furnace.

One blink:
-Check the hot surface igniter, (don't touch the element).
-Un snap the connetor, check the voltage to the ignitor with a multi-meter, mine showed voltage for only a split second -the problem.
-Reset, turn it off and on, at the switch or breaker.
-The controller, this is an integrated curcuit which for my furnace is made by Goodman (to thier high standards).
-So, to replace the controller you must invest more in the Goodman name, to add insult to injury.
-I would be willing to pay triple for a controller from Honeywell or Johnson, just to know that my expediture doesn't benefit Goodman or a Goodman dealer.

What I learned in two short years is that Goodman (Janitrol) furnaces are crap!

#CARRIERMAN

Hi fitzy888

I thought this particular POS used a seperate ignition module. If this is so, use a honeywell S8910U1000 to replace it with. If its the Smart Valve system. Get you a five gallon bucket of vasoline and a bar stool. This aint gonna be a comfortable prostate exam.

Good luck
Rusty

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Jmorriz

I have the same problem with my furnace now. Same deal, pruchased with the house. The furnace kicks off and sometimes cycles on its own. Most times the thermostat has to be turned off for a few seconds then turned back on. The furnace works perfect after that to bring room temperature to the set temperature. Everything appears to work down to the board. What a shame to have to spend hundreds of dollars on this part along with labor. Goodman is a cheap product that new construction is using to cut cost.

NCSteve

I subcontract for a big goodman dealer, I work on goodman gas furnaces all day long, I can tell you it is a cheap furnace, the company I sub contract for went from a trane dealer to a goodman amer standard dealer what a jump.

FemaleAstarCO

Fitzy we call them Goodjunk. Also are Amana now.

FemaleAstarCO

I agree Trane is by far a better unit.I am a former American Standard dealer. Due to the shipping I switched to Trane. American Standard is Trane. Trane owns American Standard. My Rep for Trane actually grew up in the factory and said they actually come off the same line. All my Trane dealer info says American Standard on it on the signature lines. Goodman has gotten better but is still junk. The cabinets are made terrible after a few years it makes quite a lot of noise. Amana has changed some of it but I am not overly thrilled with them either. The warranty is great but lets see how long that holds up.

Cindy

cgazaway

these boards are manufactured by White Rodgers (an Emerson Company, see also Copeland, Alco, etc) not by Goodman. this board actually has a low warranty rate in comparison with other makes.

flashheatingand

How old is the furnace? If it is the one I think you are mentioning, it would be covered under the warranty (part only). The Goodman company is aware that they had a bad stock of control boards for furnaces that were made around 2005 and are happy to make good on it. If you replace the board with a universal Honeywell board or anybody else, then you will have no re-course. If you are that dissatified with that product, then get a different brand. However, every brand has their flaws, Goodman isn't the only manufactorer that has had sub-par control boards.

It's too bad that you aren't happy with your furnace, but, when comparing apples to apples, they all are about the same. Just my humble opinion

flashheatingand

I worked for a Trane dealer, and ventured on my own, and sell mainly Goodman. I will grant you that the tech help with Trane, and their training program is heads and shoulders above Goodman. In my opinion, that is the major flaw with Goodman. However, when comparing the furnaces themselves, the difference is quite small. The door knobs (on Trane XR models) are a nice feature, and there may be a couple of other things that I am missing, but the motors are about the same, the boards, ... etc. they are all about the same.

Perhaps the reason People perceive Goodman as crap versus Trane is because The Goodman suppliers aren't as selective as to whom they sell their product. As a result, they are victims to poor installations. However, Tranes will not perform so well with a poor installation either.

Verbal

Was it goodman that used to use the Texas Inst. boards that had the lock out ghosts in them?

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