Poultry incubator wafer thermostat
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- Опубліковано 23 лют 2014
- We had a lot of trouble with our incubator. Traced the problems to poor thermometers and a bad thermostat. This is the wafer thermostat from the incubator.
Replaced this thermostat with a WILLHI WH7016 temperature controller shown in previous videos, and some decent thermometers and problems solved.
Very helpful video thank you. Finally figuring out how to regulate the temp in the incubator my grandpa gave me. Going to hatch chicks with my kids. Much appreciated.
Let the incubator set for a couple of days after setting the temp before putting eggs in, regularly check the temp and adjust a little at a time until it stabilizes.
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Could this be the reason my incubator stays at 95 and won’t go up at all even after I turn that level to make it hotter ?
Very likely, this one took a lot of adjustment to change the temperature then would make large changes
Tried a lot of thermostat but wafer is the best. Digital is the worst in my experience.
How well did the Willhi temp controller work? i just ordered one
We only had time for one batch after I got everything together, and we had about a 80+% hatch. That was a lot better than we ever got before with this incubator.
To be fair to the wafer thermostat, our Little Giant incubator had about the same hatch with a wafer thermostat. The big difference was accurate,stable thermometers
Professional reptile breeders prefer using an electronic thermostat in series with a mechanical for safety. Electronic thermostats are more prone to fail than the wafer.
Simple is better. Electronics don't always fail safe. Parameters of a solid state circuit can change, changing the output with out any obvious indication. We used a Whillhi controller for several years with good results, then the temps went up 10 degrees while still indicating the proper temp.
hence the use of a wafer disk in series.
one mechanical,,one electronic.
The wafer thermostat is proven after years of reliable service. This guy does not know how to use it or the principal in which it works. it is full of air and there is a wing-nut to lock down your final adjustment.
it is full of helium!!
Somebody said it was filled with ether. I wouldn't want to be the one soldering that together.
I say Helium!
Price
i've had vary good luck with wafer thermostats but any thermostat can fail , the wafer can lose the "ether gas and go into default on position , or the switch it's self can fail . you said something about a chascy ground . mine come with two wires and is not wired thru the bracket , #2 there is usually a nut soldered on the inside of the bracket to steady the bolt adjustment . there's also a wing nut to lock it down wth but . take care to not knock the adjustment off then tightening the lock nut wing ., looks as if it it was losse or gone on yours . you could , solder one on top of the bracket . & yes the wafers are usually not straight . but if placed in a position wher it doen't get constantly moved usually works well . facebook.com/pages/Homemade-incubators/273809722683265
Can you tell me how to judge whether you need to replace the wafer or the entire thermostat? I have a Hova Bator D2362N which does not hold a constant temperature. Thanks
Check to see if the threaded shaft that adjusts the thermostat wobbles in the frame when the wing nut is loose, if so, the threads in the frame are loose. It could probably be repaired by drilling out the threaded hole and soldering on a nut of the correct thread, otherwise it needs to be replaced. Sometimes you can get them to work sort-of if you keep the locking wing nut semi tight. On the one in the video the threads where loose and the wafer was bent where the shaft attached causing the wafer to wobble making adjustment impossible. If just the waver was bent I could have replaced it, but since both were sloppy I replaced the whole thing.
A new wafer is about $10 and a whole new thermostat is about $25 on ebay.
The thermostats they use on these incubators are kind of cheaply built. The fame is thin stamped steel and the threaded hole is just punched in. Any bumping of the shaft distorts the hole making it difficult to adjust the temp. They also lose calibration after opening or moving the incubator. Keeping the locking wing nut tight helps, but when they get too loose they are hard to adjust and won't stay in adjustment. If the wafer gets bent and wobbles on the shaft there is no way to adjust it as the distance between the wafer and the switch is never linear.
There is not much else that can go wrong with them. The switch could go bad, but if it is switching on and off at all that is not the problem.
Brower makes a better quality thermostat, it has nuts instead of just a punched hole, they're around $45 on ebay and $34 on Amazon. These are the ones used in the old incubators from Sears and professional ones. They come in 2 watt version for small incubators and a 31 watt version for large incubators( or other heating needs).
Patricia Grunau the waferS are very temperamental ,some that look the same may act very differently , remove the wafer and gently click the switch with your hand , you can find me , and /or other on facebook ,, Homemadeincubators,,,,,
facebook.com/Homemade-incubators-273809722683265/
bro you did not tell us about voltage, what voltage is require for wafer thermostat?
It's just a switch, doesn't really care what the voltage is. The wafer doesn't use electricity to work, just the thermal expansion or contraction of the copper, so just surrounding heat, to turn on or off whatever voltage is applied through the switch.
ok..... thanks a lot sir.. you provided very useful information....
amigo puedes desirme paso a paso como conectar ese termostato
¿Qué termostato?
why would anyone use something like that. I can't see it even working.
Actually they work great, they don't need any outside input or power (except to run the heater) and they are more sensitive than most bi-metal or electronic thermostats. We still have an incubator that my grand parents had and it still works great, it is over 70 years old and is used every year.
Just like anything else, they sometimes fail.The ones in the "cheap" incubators available these days ( like the one shown) are built "cheap" just like most of the stuff you buy now days. You can still get the good old fashioned ones, I would venture a guess that they're made in the US and the cheap ones are made in China or Mexico or India or some-such, but they cost twice as much.
LOL> Why would they NOT use it. Wafer Thermostats are tried and True, and in a small incubator you will not find a more consistent thermometer. and once it is set, it is set. Unlike Digital that are generally NOT accurate, and will sometimes be off by a couple of Degrees which is HUGE when trying to incubate eggs.
I want buying ,please contack