1. If this is your first time on BYC, we suggest you start with one of these three options:
    Raising Chickens Chicken Coops Join BYC
    If you're already a member of our community, click here to login & click here to learn what's new!

are there any mechanisms out there to help prevent overheating during incubation??? like an emergenc

Discussion in 'Incubating & Hatching Eggs' started by Msbear, Aug 24, 2013.

  1. Msbear

    Msbear Fancy Banties

    4,591
    28
    266
    May 8, 2008
    Sharpsburg, MD.
    I've lost a few rounds of eggs here recently and I'm about ready to go crazy. I have the typical wafer thermostat system and have had great hatches. Earlier this spring I cooked about 100 + eggs and got so sick I hung up the hatching for a while. I bought some new wafers and planned to change out each year to avoid the heart ache.... well, everyone started laying again so I fired the bator back up after I cleaned it well and replaced the wafer with the new one. It worked great for about 17 days [​IMG] then... [​IMG]
    [​IMG]
    I'm devastated again but, ready to figure out what's going on. I'm ready to buy the whole system including new thermostat AND wafer but, I have a couple of questions.

    #1 Is there a mechanism that you can install in the incubator that would prevent this from ever happening again? like an automatic cut off that would kick in as a last resort BEFORE my temps reach 130 degrees?

    #2 Is there a test to perform on a wafer to check whether it's bad? ...And

    Any help would be greatly appreciated...

    Thanks,

    Majorly PO'd in MD.
     
  2. HatchCraft

    HatchCraft Chillin' With My Peeps

    203
    17
    103
    Jan 15, 2011
    North Florida
    One problem with the wafer thermostats is the micro switch can stick in the on position. Older style cabinet incubators ran duel wafer thermostats wired in series . If the primary thermostat set at 99.5 degs stuck on, the second thermostat was set to limited the temp to around 101 degs.
     
  3. loveourbirds

    loveourbirds Chillin' With My Peeps

    2,857
    263
    198
    Mar 27, 2013
    waverly ohio
    since you have the replacement wafers, make a second switch with a normally closed switch. set that switch at 101 degrees as mentioned above. when the wafer pushes on the normally closed switch it opens the circuit and stops the heat.
     
  4. bachbach1

    bachbach1 Chillin' With My Peeps

    108
    18
    71
    Jun 27, 2013
    That is the way to go, I would replace the microswitch in the old unit. If you want to go electronic, they are great and dont ever stick.
     
  5. Msbear

    Msbear Fancy Banties

    4,591
    28
    266
    May 8, 2008
    Sharpsburg, MD.
    can you guys recommend an electronic one? If it's too expensive, I may go the dual switch in a series option cause is just horrible. I raise bantams and am knee deep in two really nice projects and was excited to get two generations of improvement this year... AND, my girls aren't huge producers... so each one is precious to me. Thanks so much
     
  6. loveourbirds

    loveourbirds Chillin' With My Peeps

    2,857
    263
    198
    Mar 27, 2013
    waverly ohio
    there are some reasonably priced heating units and thermostats on ebay. personally i dont like the fully electronic ones, they typically arent accurate and dont last long. when one part burns out the whole thing is done.

    if you decide to go with the dual wafer setup i can walk you though installing it. ill try to help if you go with an electronic unit too, if needed.
     
  7. bachbach1

    bachbach1 Chillin' With My Peeps

    108
    18
    71
    Jun 27, 2013
    I have some high quality digital electronic controllers, they are great, I get $40 for them. I am not sure if the website allows sales, if not I withdraw the offer. These do work good, rock solid, and accurate.
     
  8. Msbear

    Msbear Fancy Banties

    4,591
    28
    266
    May 8, 2008
    Sharpsburg, MD.
    I just ordered two new switches and 2 wafers... gonna try the series thing... I like them cause their simple and easy to fix. I may need some assistance, "loveourbirds" chat with you guys soon. Thanks!
     
  9. loveourbirds

    loveourbirds Chillin' With My Peeps

    2,857
    263
    198
    Mar 27, 2013
    waverly ohio
    i will gladly help.

    did you make sure to get one of the switches normally closed and one normally open?

    edited to add: the next post is right, they are supposed to be both normally closed switches. i really dont know what i was thinking [​IMG]
     
    Last edited: Aug 27, 2013
  10. HatchCraft

    HatchCraft Chillin' With My Peeps

    203
    17
    103
    Jan 15, 2011
    North Florida
    Both switches should be the regular, normally closed type , wired in series . That way the backup thermostat can break the circuit if the primary sticks in the on position preventing overheating. At least that is the way they are usually wired.
     

BackYard Chickens is proudly sponsored by