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Old 03-01-2013, 04:54 AM   #1
Chugmaster
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Default PID Autotune Goes to Boil

Running autotune on my Auber PID today.

Set the temp on automatic to 154F.

At 144F, I initiated autotune (setting to 2).

The kettle continued to rise to 212F.

Is this normal?

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Old 03-01-2013, 10:36 AM   #2
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Quote:
Originally Posted by Chugmaster
Running autotune on my Auber PID today.

Set the temp on automatic to 154F.

At 144F, I initiated autotune (setting to 2).

The kettle continued to rise to 212F.

Is this normal?
When I ran autotune on my setup, I started with water fresh from the tap. I would think starting auto tune that close to final temp would cause an over shoot of temp.
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Old 03-01-2013, 01:55 PM   #3
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I was following Kal's advice:

http://www.theelectricbrewery.com/control-panel-setup

I'll try tonight with fresh water (mine's about 40F right now.)

Has anyone else had this issue?

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Old 03-01-2013, 02:28 PM   #4
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Might be a bad relay.

I had the same issue. I went cheep on my SSR purchase and turns out they were bad and not turning off the element even though the SSR light indicated it was cycling. I replaced my SSR with one from Auber, set the temp to 154F and initiated the autotune at 144F. It ran for around 30 minutes and never went over 156F.

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Old 03-01-2013, 02:56 PM   #5
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Quote:
Originally Posted by ironmountainbrew
Might be a bad relay.

I had the same issue. I went cheep on my SSR purchase and turns out they were bad and not turning off the element even though the SSR light indicated it was cycling. I replaced my SSR with one from Auber, set the temp to 154F and initiated the autotune at 144F. It ran for around 30 minutes and never went over 156F.
I know that my SSR is shutting off during normal operation. I can tell because my element light shuts off when a temperature is reached in automatic mode. This tells me that the SSR is working since the relay is closed when this happens.
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Old 03-07-2013, 07:02 PM   #6
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I'm 99% that I have a faulty SSR. The out light on the PID goes off though my element light stays on. Can an SSR be faulty and only work part of the time? I was always under the impression that when it failed, it failed completely.

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Old 03-07-2013, 07:06 PM   #7
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They can fail on. That's why I recommend a current transformer monitor. It tells you what is going to the element irrespective of what your controller or SSR pilot LED says.

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