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-   -   No power to units (http://www.diychatroom.com/f17/no-power-units-80206/)

shoyer 09-01-2010 05:12 AM

No power to units
 
My wife woke me up tonight because it was getting hot in our house. I went downstairs to see if I could figure anything out with my limited knowledge. It seems as though there is no power to furnace. I checked the breaker and tried flipping the power switch next to the unit and nothing. We had the furnace replaced about 8 years ago. It is a Goodman unit, not sure of the model number. We have had a few issues in the past, and I remember the tech showing me the indicator light inside the unit for diagnostics. It isn't on. Any deas on where I can begin?

lamon2524 09-01-2010 06:25 AM

Control Tranformer may be fused or with a reset button on it. if not see if you have 24v coming out. Goodman also, if I recall has a car like two blade fuse in the control board.

shoyer 09-01-2010 07:26 AM

I went and checked the voltage at the transformer. 122v in and 27v out, so that appears to be ok. I did pull the 3 amp fuse on the board and it appears to be burnt. I will get one while I am out this AM and see if that works. Thanks for the help in getting me started!

lamon2524 09-01-2010 07:31 AM

Glad to help, love easy service calls.

shoyer 09-01-2010 09:28 AM

It worked! Amazing how a simple 3 amp fuse can bring down the whole ship. Thanks for your help lamon! It is greatly appreciated!:thumbup:

hennyh 09-01-2010 12:27 PM

Quote:

Originally Posted by shoyer (Post 494176)
It worked! Amazing how a simple 3 amp fuse can bring down the whole ship. Thanks for your help lamon! It is greatly appreciated!:thumbup:

I don't want to "rain or your parade", but blown fuses often indicate an issue that needs further investigation.

If your new fuse blows then you better trace the LV circuits for further problems. (wiring or downstream components).

beenthere 09-01-2010 06:31 PM

Quote:

Originally Posted by hennyh (Post 494233)
I don't want to "rain or your parade", but blown fuses often indicate an issue that needs further investigation.

If your new fuse blows then you better trace the LV circuits for further problems. (wiring or downstream components).

Yep. They don't blow because everything is ok.

So you got a problem some where.

shoyer 09-04-2010 10:25 AM

So far so good with the fuse. I will definetly keep an eye on it. We had a ton of lighting move thru the night it went out, so I'm thinking that might of had something to do with it. But again, I will continue to check on it. Thanks for all of the help!


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