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Old 12-02-2012, 08:55 PM   #1
akuma
Scooby Newbie
 
Member#: 339522
Join Date: Dec 2012
Default Newb question - Block heater problem

Hi guys, I have a Subaru Impreza year 2010. In my area, the temperature is really low, so these days I always plug in the block heater for a few hours before driving. I don't know much about cars, but I heard that if the block heater is working, it has some kind of "water boiling / running" noise when plugged in. So, every time when I plug it in, I listen carefully. And usually there is such noise. However, this morning, when I plugged it in, there wasn't any noise. After a few hours, I opened the hood and touched the engine part and other areas, they weren't heated up. Can I assume the block heater is not working? Thank you very much for your advice.
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Old 12-02-2012, 09:04 PM   #2
lavid2002
Scooby Specialist
 
Member#: 226864
Join Date: Oct 2009
Location: southern NJ
Vehicle:
2005 PSM WRX
18.5lb. 93 oct, DP, UP

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Sounds like a safe assumption to make to me. You should fill out your profile.

You sure the cord you plugged it into has juice?
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Old 12-03-2012, 02:40 PM   #3
rkramer
Scooby Guru
 
Member#: 118209
Join Date: Jun 2006
Chapter/Region: MWSOC
Location: North Dakota
Vehicle:
2002 WRX Sedan

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Not all block heaters make noise, and the vast majority of the time you aren't going to be able to feel any warm parts. Do you have a kill-a-watt? Plug the heater in to that and see if its drawing power. You could also take a multimeter and check the resistance of the heater.
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Old 12-03-2012, 03:18 PM   #4
Bacon117
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Member#: 118500
Join Date: Jun 2006
Chapter/Region: MWSOC
Location: Michigan
Vehicle:
02 Silver Wagon
"Stage 2"

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Make sure the outlet has power. I thought mine was borked until I realized my wife turned of the switch in the garage. lol
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