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Old 10-28-2019, 12:23 AM   #8
Chris_oz
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Join Date: Sep 2018
Location: Newcastle, New South Wales, Australia
Posts: 139
Re: Do thermostats have a break in period?

Are you sure it is installed the correct way?
I have seen them in backwards which can make then slow to open, then do funny things,
Confim it's in the correct way and the 1/8" hole is cheap insurance against air locks and slow opening.
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