UGH!!! MY BATOR LID KEEPS POPPING OFF!!

[lucysducks11]

Greetings my non-feathered friends
I didn't want to start a new thread because my last one has so many subscribers but I need fast advice on this, the lid keeps popping off my Bator, this has never happened before but it has been going non stop for almost a month now
Has anyone else had this problem in the past? Does anyone else have this Bator? I have 6 call ducks incubating and woke up to the lid off I know what to do to fix this (a really heavy brick lol) but would like to know the cause??

 

[DwayneNLiz]

how long has it been running non-stop?
The heating up and cooling down of the plastic may have warped it, so that it doesnt have a good seal anymore

 

[lucysducks11]

how long has it been running non-stop? 

The heating up and cooling down of the plastic may have warped it, so that it doesnt have a good seal anymore

A month, I had the Mallards in this one as well and moved them to my larger Bator for lockdown, I don't want to move the call ducks, they will be fine to hatch in this Bator, if it would stop thinking it was a piece of popcorn that would be nice lol