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Old 03-23-2013, 04:44 PM   #1
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Default Stc-1000 temp controller failure

I havent brewed in a while and just went out to kind of check on things in the brew shed in prep for upcoming brews.. Opened the ferment room and it was cold as heck. the temp controller was switched to HEAT but the heater was not on. I pulled the heater and plugged it into another outlet and it worked fine. pulled the temp controllr apart and some wires were all melted inside, and the controller itself was even disfigured from heat. the cool side works fine but the heat side is trashed so I have to get a new one. I THINK I used way too small gauged wire and melted it. So a little tip for future builders, use the heaviest wire you can fit in the controller. Now I gotta buy a new one.


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Old 03-23-2013, 04:53 PM   #2
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What kind of heater are you using? The relays are only rated for 10 amps you may be overloading them.


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Old 03-23-2013, 06:08 PM   #3
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What kind of heater are you using? The relays are only rated for 10 amps you may be overloading them.
just a small space heater.. never even thought to look at the amps...I used it all last winter and it just quit. I was out there a week ago and it was fine...
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Old 03-23-2013, 06:23 PM   #4
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just a small space heater.. never even thought to look at the amps...I used it all last winter and it just quit. I was out there a week ago and it was fine...
A lot of space heaters draw quite a bit.
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Old 03-23-2013, 06:34 PM   #5
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And the gauge wire used is a big cause.
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Old 03-23-2013, 06:40 PM   #6
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If your heater is over 1000W it's too much for an STC-1000.
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Old 03-23-2013, 07:27 PM   #7
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If your heater draws to many amps it could be possible to get a contactor or ssr to turn the heater on and off and use the stc-1000 to control the contactor or ssr.
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Old 03-23-2013, 07:49 PM   #8
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cooling side still works.. the heat side is FRIED.
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Old 03-23-2013, 07:56 PM   #9
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Steve,

If it's only the relay and output circuit traces that are fried, you can unsolder the relay and run the two traces that supply the relay out to the input of an SSR. The relay is run from 12v DC, so there are a lot of SSR's that you can get to switch heavier loads.
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Old 03-23-2013, 10:12 PM   #10
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Steve,

If it's only the relay and output circuit traces that are fried, you can unsolder the relay and run the two traces that supply the relay out to the input of an SSR. The relay is run from 12v DC, so there are a lot of SSR's that you can get to switch heavier loads.
way way over my head.. 21 bucks shipped for a new one sounds easier lol


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