Had a analog Johnson control go out
#1
Posted 14 April 2009 - 07:24 AM
#2
Posted 14 April 2009 - 07:53 AM
#3
Posted 14 April 2009 - 08:12 AM
#4
Posted 14 April 2009 - 12:41 PM
#5
Posted 14 April 2009 - 12:58 PM
That's what I'm wondering. I have 3 analogs that have worked great for over 4 years. But of course they're inside..........Does anyone know if these controllers can handle freezing temps during the winter being inop?
#6
Posted 14 April 2009 - 01:13 PM
Anybody know what's inside those bulb probes? I could see where they might freeze and damage something.Does anyone know if these controllers can handle freezing temps during the winter being inop?
#7
Posted 14 April 2009 - 01:42 PM
Well I thought of this, but most controllers like mine are rated down to 30 degrees so the probe would be frozen all the time.Anybody know what's inside those bulb probes? I could see where they might freeze and damage something.
#8
Posted 14 April 2009 - 01:51 PM
IIRC the thermometric liquid housed in the bulb and capillary is usually mercury, alcohol, or some other chemical rated at -35F or below.Anybody know what's inside those bulb probes? I could see where they might freeze and damage something.
#9
Posted 14 April 2009 - 04:06 PM
#10
Posted 14 April 2009 - 04:27 PM
Edited by JKoravos, 14 April 2009 - 04:30 PM.
#11
Posted 14 April 2009 - 04:30 PM
Then I vote for wacking the sucker with a hammer a few times - that oughta do itI have an analog Johnson temp controller on my chest freezer in the basement (well, before the chest freezer died anyway). This Johnson temp controller spent two winters outside. Not just outside, but outside completely unprotected from the elements. I left it at my buddies house on New Year's one year then totally forgot about it (it was in a cardboard box with some various fittings and whatnot). The box, which had no lid, ended up outside under his deck. I found it by accident when I was at his house a year and a half later. So this thing has been rained and snowed on for almost two years and it still works. So, yeah, I wouldn't say that leaving it outside in the cold was the problem...and this wasn't some pansy-ass North Carolina winter, we're talking northern New England buried under snow winter.
#12
Posted 14 April 2009 - 06:32 PM
Hold on, let me find my hammer...Then I vote for wacking the sucker with a hammer a few times - that oughta do it
#13
Posted 14 April 2009 - 06:36 PM
Let's start with the little one first, just in case - might knock something loose. My 3# is for when I'm really pissed, good thing to do before going and explaining it to the wife Great stress reliever.Hold on, let me find my hammer...
#14
Posted 14 April 2009 - 06:53 PM
#15
Posted 14 April 2009 - 06:54 PM
#16
Posted 14 April 2009 - 07:29 PM
#17
Posted 14 April 2009 - 07:34 PM
When no other tool will fix it, it's time to get out the BFH. Works well when your machine just needs an attitude adjustment.Yep, the hammer trick is all it took. I took the cover off and whacked the relay a few times and there you go, back in buisness!
#18
Posted 14 April 2009 - 07:40 PM
Cool, keep an eye on it though. May work forever, and may fail again soon. There are a few of those analog Johnsons running the HVAC in the building I work in - must be 30+ years old and going strong.Gotta love the hammer, ruined stuff that wouldn't ever work again but revived a few that I thought were toast. Don't work well on glass though.Yep, the hammer trick is all it took. I took the cover off and whacked the relay a few times and there you go, back in buisness!
#19
Posted 14 April 2009 - 08:35 PM
Ah, the Navy way!Yep, the hammer trick is all it took. I took the cover off and whacked the relay a few times and there you go, back in buisness!
#20
Posted 07 May 2009 - 03:49 PM
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