DGAT070BDF Fuse Blows
Posted: Tue Oct 23, 2007 8:42 am
First of all, thanks for the site! Great info I have picked up on in here!
My DGAT070BDF is under a recall. I didn't know this until this problem arose, so the problem may have saved a life. Still, I am a man of limited means who is forced to do much of his own work, within my limits of course.
I must confess, I blew it. I read another post where someone else did a similar thing, and that has given me the courage to admit my own error here.
I was cleaning and working on the furnace when I noticed a few of the wire connections were poorly taped. I'm a strong believer in WireNuts on these type of connections so I unravelled the tape on the connections and went after my wirenuts. I set the box there by the connections and it didn't want to stay, so it tried to fall. I grabbed at it, and in the process two of the bare connections, a RED and a WHITE, met each other and there was a nice bright spark... but short-lived. All of a sudden my furnace's little green eye went dark. I looked the board over and found a 10 amp blade fuse had blown. Back to my supplies, found a replacement, put it in and turned the side switch back on. I noticed little whiffs of smoke coming out of the back of the board in the upper left corner, so I flipped it back off right away. I took my flashlight and began further inspection of the board, and noticed that the fuse I replaced was SUPPOSED to be a 3 amp, not a 10, even tho that was what was in there since I have had it.
My question is this: What could I have toasted on this? As I mentioned, it was the RED and the WHITE connections that come from the board's upper left corner that got crossed. If it may be the transformer, how do I test this, without powering up the board and causing further damage? HELP!
My DGAT070BDF is under a recall. I didn't know this until this problem arose, so the problem may have saved a life. Still, I am a man of limited means who is forced to do much of his own work, within my limits of course.
I must confess, I blew it. I read another post where someone else did a similar thing, and that has given me the courage to admit my own error here.
I was cleaning and working on the furnace when I noticed a few of the wire connections were poorly taped. I'm a strong believer in WireNuts on these type of connections so I unravelled the tape on the connections and went after my wirenuts. I set the box there by the connections and it didn't want to stay, so it tried to fall. I grabbed at it, and in the process two of the bare connections, a RED and a WHITE, met each other and there was a nice bright spark... but short-lived. All of a sudden my furnace's little green eye went dark. I looked the board over and found a 10 amp blade fuse had blown. Back to my supplies, found a replacement, put it in and turned the side switch back on. I noticed little whiffs of smoke coming out of the back of the board in the upper left corner, so I flipped it back off right away. I took my flashlight and began further inspection of the board, and noticed that the fuse I replaced was SUPPOSED to be a 3 amp, not a 10, even tho that was what was in there since I have had it.
My question is this: What could I have toasted on this? As I mentioned, it was the RED and the WHITE connections that come from the board's upper left corner that got crossed. If it may be the transformer, how do I test this, without powering up the board and causing further damage? HELP!
