Home Brew Forums > Home Brewing Beer > Electric Brewing > 110v Recirculating eBIAB 2.5 gallon batches
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Old 08-30-2012, 09:57 PM   #71
ekjohns
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I noticed you have the probe in the kettle as opposed to a T on the outflow. any chance this is causing you to over shoot your mash temps from dead spots? I know Kal has his hooked up through the T. That way you are reading the hottest liquid and can not overshoot. With the way you have it there is a possibility, especially with the grain bag that channeling could isolate some of the liquid by your probe. Thus the system is tricked into thinking it is at a lower temp and over heats.
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Old 08-31-2012, 02:15 AM   #72
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If the contactor is buzzing really a lot of times it is because it is not screwed down tight enough. Then again some contactors just buzz louder than others (you did buy a new one I hope) as they get older they get a little noisier also. Here is a trick I picked up years ago, take a piece of foam (the gasket from a weatherproof outlet) and mount it underneath the contactor. Works like a charm to quiet it down.
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Old 08-31-2012, 02:33 AM   #73
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Ya that's where I would start too. Make sure everything is tight. Are you getting good voltage to the element when the contactor engages?
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Old 08-31-2012, 02:35 AM   #74
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Quote:
Originally Posted by ekjohns View Post
I noticed you have the probe in the kettle as opposed to a T on the outflow. any chance this is causing you to over shoot your mash temps from dead spots? I know Kal has his hooked up through the T. That way you are reading the hottest liquid and can not overshoot. With the way you have it there is a possibility, especially with the grain bag that channeling could isolate some of the liquid by your probe. Thus the system is tricked into thinking it is at a lower temp and over heats.
My temps are spot on. Don't fluctuate at all. That's the reason for the pump. First couple of brews I monitored different spots in the kettle with my long dial therm. Spot on, don't bother anymore. Btw, I brewed an Irish red today, still loving this rig!

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Old 08-31-2012, 02:42 AM   #75
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Quote:
Originally Posted by grandequeso
If the contactor is buzzing really a lot of times it is because it is not screwed down tight enough. Then again some contactors just buzz louder than others (you did buy a new one I hope) as they get older they get a little noisier also. Here is a trick I picked up years ago, take a piece of foam (the gasket from a weatherproof outlet) and mount it underneath the contactor. Works like a charm to quiet it down.
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I went and checked the mounting. It feels pretty solid. I tightened the screws and it didnt help. The weird thing is, I can hold the contractor poles(?) down and it suppresses the buzzing/vibration. So the buzzing is definitely coming from the coil assembly.

It fell off my workbench onto the concrete floor. I have a feeling something broke loose.
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Old 08-31-2012, 02:44 AM   #76
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Quote:
Originally Posted by jrb03
Ya that's where I would start too. Make sure everything is tight. Are you getting good voltage to the element when the contactor engages?
The element heats up almost instantly if the contactor is buzzing or if I manually engage it. Power seems to be good. All screws are tight.
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Old 08-31-2012, 02:57 AM   #77
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The element heats up almost instantly if the contactor is buzzing or if I manually engage it. Power seems to be good. All screws are tight.
You probably know this but don't ever dry fire one of these elements. Will burn out almost instantly. If it is as loud as a dryer alarm I'm thinking your on to something with the fall lol. Maybe someone with more experience can chime in. I will say I recently found contactors on amazon for like $5. I would probably order one at least as a backup. I got one for my A/C unit.
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Old 08-31-2012, 01:49 PM   #78
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Quote:
Originally Posted by jrb03 View Post
My temps are spot on. Don't fluctuate at all. That's the reason for the pump. First couple of brews I monitored different spots in the kettle with my long dial therm. Spot on, don't bother anymore. Btw, I brewed an Irish red today, still loving this rig!
Do you recirculate through the entire mash? What do you have on the outlet side of the pump inside the kettle to keep the splashing down?
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Old 08-31-2012, 04:34 PM   #79
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Do you recirculate through the entire mash? What do you have on the outlet side of the pump inside the kettle to keep the splashing down?
Yes I recirculate the entire mash. I don't have anything on the outlet side. It shoots out and splashes and foams as some of my pictures show. I've thought about adding some hose or something but don't really see the need yet.
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Old 08-31-2012, 05:54 PM   #80
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Well apparently contactors do not like being dropped on concrete. I replaced it this morning and it works as it should. Here is a shot of mine auto-tuning:



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Thinking about brewing a DFH 90 minute inspired beer for the first session.

My friend and I ordered all the parts and each built one of these. He brewed a Victory "Hop Devil" for his very first home brew and first brew on the kit. He boiled of .75 gallons over 90 minutes just as you do JRB. He also had ~ 75% efficiency as a total beginner.

I'm looking to brewing on this kit early next week!
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