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Old 01-13-2013, 03:17 AM   #21
eryk4381
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Jan 2012
Wilsonville, OR
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Quote:
Originally Posted by tophmck View Post
The display says minus 14, so the heat should be on, no?
Yes it should be on to heat but why do this temp say -14 degrees Celsius. Thats crazy freezing.

 
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Old 01-13-2013, 03:18 AM   #22
eryk4381
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Jan 2012
Wilsonville, OR
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Originally Posted by Hermit View Post
Do you have an ohm meter? Check the resistance at room temperature. I can then check mine to get a reading and see if they are in the same ballpark.
Resistance with the wire probe you mean? I can check that. Do you think it may have a fault in the probe wire?

 
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Old 01-13-2013, 03:21 AM   #23
eryk4381
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Jan 2012
Wilsonville, OR
Posts: 98

Quote:
Originally Posted by tophmck View Post
Since the controller is behaving properly given what it thinks the temperature is, this doesn't sound like a wiring mistake. It's an NTC probe, so a super low temp means you're getting a lot of extra resistance. If this is only happening sporadically, perhaps a short somewhere in the cable? Or maybe a bad connection where the probe connects to the controller? Did you wire some kind of plug into the probe cable, or does it plug directly into the back of the controller?
Yeah its directly connected to the controller. The wire could have been pinch or something and giving a random read to give the temp controller such odds results. Maybe moisture in the fridge caused a resistance fault in the wire and stuck the temp controller with and bad read?

 
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Old 01-13-2013, 05:16 AM   #24
Hermit
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Quote:
Originally Posted by eryk4381 View Post
Resistance with the wire probe you mean? I can check that. Do you think it may have a fault in the probe wire?
Well, someone questioned it. We could simply compare readings around room temperature if you want.

 
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Old 01-13-2013, 05:36 AM   #25
GilSwillBasementBrews
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If you wired it up to control an outlet like most of the DIY forums did you ensure you broke the connector bridge on the side that ties the the two post on that side together? if not that could cause your heat to run the same time it should be cooling? just a thought to check
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Old 01-14-2013, 03:48 PM   #26
eryk4381
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Jan 2012
Wilsonville, OR
Posts: 98

Quote:
Originally Posted by GilSwillBasementBrews View Post
If you wired it up to control an outlet like most of the DIY forums did you ensure you broke the connector bridge on the side that ties the the two post on that side together? if not that could cause your heat to run the same time it should be cooling? just a thought to check
Yep. I made sure the connection was broken. Just to make it clear in case I confused anyone, the heat doesn't come on at the same time as the cooling. The process with switching from heating to cooling works just as it should. The only issue is that the temp should read probably about 65 degrees and somehow the temp controller is reading that it's 14 degrees which is probably impossible.

 
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Old 01-14-2013, 05:05 PM   #27
raouliii
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Quote:
Originally Posted by eryk4381 View Post
....i checked the temp and it said -88 degrees and apparently had been heating ALL DAY!!!!! Took my beer up to 79 degrees!! GRRRR..

I thought it may be just a random thing so I instantly cooled it back down then reset the temperature back to what I wanted. Two days after it stuck on -14 degrees and was heating again...
Quote:
Originally Posted by eryk4381 View Post
.... The only issue is that the temp should read probably about 65 degrees and somehow the temp controller is reading that it's 14 degrees which is probably impossible.
I'm a bit confused. Are you mixing temperature units in your discussion?

14deg C = 57deg F
65deg C = 149deg F
18deg C = 65deg F
-10deg C = 14deg F

I would suggest checking the calibration of your probe/controller. Does it read 0deg C in a cup of ice water?
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Old 01-14-2013, 06:52 PM   #28
Jackjama
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Aug 2012
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I am gathering that your temp is reading way lower than actual.

I think you should focus on discontinuity in your temp probe first. Make sure you have a good connection with your temp probe wires and terminal strip. Also make sure your temp probe wire is not damaged.

 
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Old 01-14-2013, 07:39 PM   #29
eryk4381
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Jan 2012
Wilsonville, OR
Posts: 98

Quote:
Originally Posted by raouliii View Post
I'm a bit confused. Are you mixing temperature units in your discussion?

14deg C = 57deg F
65deg C = 149deg F
18deg C = 65deg F
-10deg C = 14deg F

I would suggest checking the calibration of your probe/controller. Does it read 0deg C in a cup of ice water?
I was mixing degree measurements, sorry. When I said -88 degrees i meant Celsius.
The next time it misread tempreture it was -14 degrees Celsius as well.

"....i checked the temp and it said -88 degrees and apparently had been heating ALL DAY!!!!! Took my beer up to 79 degrees Fahrenheit!! GRRRR.."

 
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Old 01-22-2013, 03:45 PM   #30
eryk4381
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Jan 2012
Wilsonville, OR
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Quote:
Originally Posted by Hermit View Post
Well, someone questioned it. We could simply compare readings around room temperature if you want.
OK sorry it took so long to get the resistance measurement. I took out my probe from the install and checked it at room temp. I'm reading 11.3K ohms.

What is everyone else reading on their probes???..
Thanks again for the help.

 
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