furnace help

[ddd75]

have a 8 yr old furnace not firing.

It's not giving power to the gas valve to open. If I bypass the motherboard and give power to the gas valve, it will open and everything works fine, except the furnace won't turn off (throws a flame detected w/o gas valve code)

Every component checks out. I did notice on the motherboard that a small diode is burnt.

I'm leaning toward the motherboard. Are the relays built into the motherboards now because I couldn't find one.

 

[farmboy80]

It sounds like you need a new mother board. I would call a local heating and air company, and tell them whats going on. Maybe they can tell you what it is without coming out.

 

[pricefarm]

Does it not have a light on it that is flashing? Usually there will be a light that will flash when something is wrong, and you count the number of flashes to see what the error code means.

 

[ddd75]

Does it not have a light on it that is flashing? Usually there will be a light that will flash when something is wrong, and you count the number of flashes to see what the error code means.

it's showing normal operation.

 

[ddd75]

It sounds like you need a new mother board. I would call a local heating and air company, and tell them whats going on. Maybe they can tell you what it is without coming out.

that's what i'm thinking.


Hey.. I'll be over your way in a couple days I gotta pick up a baler over there near springfield I think.

 

[BRYANT]

replaced the board on a Goodman last week. For the last three years I have had a problem with its solder joints. They must have used a faulty solder on the first one a new board was only 60.00 + tax so I replaced it.

 

[ddd75]

replaced the board on a Goodman last week. For the last three years I have had a problem with its solder joints. They must have used a faulty solder on the first one a new board was only 60.00 + tax so I replaced it.

iordered a motherboard today. It was 95 shipped.. hope it gets the job done.

 

[ALACOWMAN]

If you could have caught a HVAC man,He coulda tested it for you.. Around here those guys grow on trees apparently, like the plumbers....

 

[farmboy80]

that's what i'm thinking.


Hey.. I'll be over your way in a couple days I gotta pick up a baler over there near springfield I think.

Yhea Springfield is about thirty minutes from me. Kinda far drive for a baler, isn't it? Is it something special?

 

[ddd75]

that's what i'm thinking.


Hey.. I'll be over your way in a couple days I gotta pick up a baler over there near springfield I think.

Yhea Springfield is about thirty minutes from me. Kinda far drive for a baler, isn't it? Is it something special?

yea, I got it for a really good price so I guess the 18 hours of driving are worth it.. I tried to have someone ship it for me but everyone wants too much.