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Failed defrost mode - bottom freezer frig Options  Email this topic  Watch this topic  Print this topic » Normal Threaded
Model: BR18VL	Brand: Amana	Age: More than 10 years
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virtualblues		#1 Posted : Friday, August 6, 2010 11:22:30 AM(UTC) Quote Multi-Quote
Rank: Member Groups: Registered Joined: 7/5/2010(UTC) Posts: 7		Amana BR18VL bottom freezer frig not defrosting as it should. Due to the coil icing up the frig operates inefficiently. Here is what troubleshooting I've done and what I know: The defrost heater operates and has continuity. The defrost thermostat has continuity when frozen. The defrost timer has been replaced but behaves similarly to the old timer. The timer is an 8 hour timer though it takes about 24 hours to cycle around to defrost mode (same as the original timer). When I operate the timer manually it sometimes will defrost the iced up coil and sometimes won't. Without manually operating the defrost timer the coil freezes into a solid block of ice. Can I save my frig?? Advice appreciated. Thanks. pk
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richappy		#2 Posted : Friday, August 6, 2010 3:52:52 PM(UTC) Quote Multi-Quote
Rank: Advanced Member Groups: Senior Expert Joined: 9/10/2007(UTC) Posts: 9,586 Was thanked: 2 time(s) in 2 post(s)		Replace your defrost thermostat, probably intermittent. If you temporarily short the wires going to it and it reliably defrosts, that would confirm a bad thermostat. Also, check for burnt wires.
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denman		#3 Posted : Saturday, August 7, 2010 11:07:10 AM(UTC) Quote Multi-Quote
Rank: Advanced Member Groups: Senior Expert Joined: 2/29/2008(UTC) Posts: 19,638 Thanks: 1 times Was thanked: 11 time(s) in 11 post(s)		Often you can see a bad thermostat in that it's case has bulged out re: water has got into it, frozen and messed it up.
		THIS FORUM IS DEAD!!!!!!!
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virtualblues		#4 Posted : Sunday, August 8, 2010 8:16:22 PM(UTC) Quote Multi-Quote
Rank: Member Groups: Registered Joined: 7/5/2010(UTC) Posts: 7		Thanks for the advice. I replaced the defrost thermostat. I'm monitoring - so far, so good. Thanks. pk
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virtualblues		#5 Posted : Tuesday, August 10, 2010 4:35:21 PM(UTC) Quote Multi-Quote
Rank: Member Groups: Registered Joined: 7/5/2010(UTC) Posts: 7		Originally Posted by: denman Often you can see a bad thermostat in that it's case has bulged out re: water has got into it, frozen and messed it up. Thanks, denman and richappy. The new defrost thermostsat is behaving as it should. No more runaway ice on the coil. Upon inspection, the old original thermostat does have a bulge - not at all symmetrical. I appreiciate the expert advice. This forum is outstanding!
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denman		#6 Posted : Wednesday, August 11, 2010 2:39:16 AM(UTC) Quote Multi-Quote
Rank: Advanced Member Groups: Senior Expert Joined: 2/29/2008(UTC) Posts: 19,638 Thanks: 1 times Was thanked: 11 time(s) in 11 post(s)		You are welcome And thanks for getting back to us. Now when others search for a similar problem they will see what actually worked instead of just suggestions about what could be the cause.
		THIS FORUM IS DEAD!!!!!!!
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