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Author Topic: Whats happened to my stc1000?  (Read 328 times)

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Offline solidute16

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Whats happened to my stc1000?
« on: June 06, 2018, 04:48:11 PM »
I chucked my full of hot wort no chill cube into the fermentation fridge with the bottles I'm conditioning and as usual I moved the temp probe in between a bottle and stubby holder as thats where i want the temp measured - not next to hot wort.

This was when weird things started happening.

The stc started beeping at me then after a few readjustments of the temp probe went back to "normal".

Only thing is now its on the cool cycle - according to the indicator light - but iys not cooling and the overall temp is rising...

Have I done something wrong or has the stc packed it in?

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Online gully85

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Re: Whats happened to my stc1000?
« Reply #1 on: June 06, 2018, 05:08:23 PM »
have you checked the wiring? something might be crossed over?

bit hard to diagnose as it doesn't seem you have done anything wrong, You have an extension on the probe? check all the connections again to tick that off the troubleshooting list

Offline solidute16

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Re: Whats happened to my stc1000?
« Reply #2 on: June 06, 2018, 05:19:54 PM »
have you checked the wiring? something might be crossed over?

bit hard to diagnose as it doesn't seem you have done anything wrong, You have an extension on the probe? check all the connections again to tick that off the troubleshooting list
Yeah I didnt even move the join, literally just grabbed near the probe to pick the wire up. it would've bent near the middle and went from dangling to sagging in the middle. The temp says high, by about 4 deg at the moment - been slowly creeping, the display indicates that it should be cooling but the fridge isnt running. The wiring at the stc hasnt been disturbed since I put it in place the cables are plenty long enough to do what needs to be done without disturbing the delicate end.

Its been fine until the little beeping incident this arvo

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Offline solidute16

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Re: Whats happened to my stc1000?
« Reply #3 on: June 06, 2018, 05:21:32 PM »
Also no wires can physically cross over I made sure of that when i set it up

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Offline bookworm1707

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Re: Whats happened to my stc1000?
« Reply #4 on: June 06, 2018, 05:59:30 PM »
Plug the fridge in direct to check it isn't the fridge.

As for the STC have you turned it off/on?

Offline solidute16

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Re: Whats happened to my stc1000?
« Reply #5 on: June 06, 2018, 06:18:15 PM »
Plug the fridge in direct to check it isn't the fridge.

As for the STC have you turned it off/on?
Will go try fridge in a sec. Yep tried off/on to no result

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Offline ben_sa

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Re: Whats happened to my stc1000?
« Reply #6 on: June 06, 2018, 06:35:28 PM »
I've personally had worrying moments when my etc is set to say 17.c and it gets past that... only to realise I haven't plugged the fridge into the stc... thank god it's been cold here lately haha
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Offline solidute16

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Re: Whats happened to my stc1000?
« Reply #7 on: June 06, 2018, 06:54:03 PM »
Had a heat or lack of moment the other day - plug came out

So stc seems to have decided to tell the fridge to work again so temps coming down again thankfully

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Re: Whats happened to my stc1000?
« Reply #8 on: June 06, 2018, 09:11:32 PM »
Had a heat or lack of moment the other day - plug came out

So stc seems to have decided to tell the fridge to work again so temps coming down again thankfully

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Remember the STC 1000 has a compressor delay timer built in which is set by default to 10 minutes. This is put in place to stop the fridge compressor constantly cycling on and off which will shorten it's life. However, when you first plug the STC1000 in -OR- you have power outage, even for half a second, the STC1000 will switch straight into compressor delay timer mode before returning to normal.
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Offline solidute16

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Re: Whats happened to my stc1000?
« Reply #9 on: June 06, 2018, 10:35:15 PM »
Had a heat or lack of moment the other day - plug came out

So stc seems to have decided to tell the fridge to work again so temps coming down again thankfully

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Remember the STC 1000 has a compressor delay timer built in which is set by default to 10 minutes. This is put in place to stop the fridge compressor constantly cycling on and off which will shorten it's life. However, when you first plug the STC1000 in -OR- you have power outage, even for half a second, the STC1000 will switch straight into compressor delay timer mode before returning to normal.
i recall seeing this somewhere. My issue was something else as it was well over an hour before there was any fridge activity... no worries now though seeing as though its working again

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Online gully85

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Re: Whats happened to my stc1000?
« Reply #10 on: June 07, 2018, 05:04:38 PM »
maybe think about getting a backup STC. I have brought an extra for this exact reason.

Now it seems the best option is, don't play with the prob. 😀

Offline solidute16

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Re: Whats happened to my stc1000?
« Reply #11 on: June 07, 2018, 06:00:51 PM »
maybe think about getting a backup STC. I have brought an extra for this exact reason.

Now it seems the best option is, don't play with the prob.
Give a bloke a break, why can't i play with my probe...

For the price a second stc is a good idea

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Re: Whats happened to my stc1000?
« Reply #12 on: June 07, 2018, 09:15:02 PM »
Are you using a new or second hand STY 1000?

STC 1000 controllers are upgradable through the firmware and can be programmed to do much more than they do straight out of the box. A second hand unit may have had some re-programming.

See here:  https://static1.squarespace.com/static/534ab806e4b021e125a9f826/t/53822ff0e4b0870ae9a58559/1401040880636/usermanual.pdf
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Offline solidute16

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Re: Whats happened to my stc1000?
« Reply #13 on: June 07, 2018, 11:16:02 PM »
Was brand new


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Offline solidute16

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Re: Whats happened to my stc1000?
« Reply #14 on: June 07, 2018, 11:20:04 PM »
Dont think i need to worry about tinkering with the programming. I only need it to heat and cool as required to maintain a temp

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