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Old 10-27-2011, 12:12 PM   #1
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Gas boiler will not shut off!!


I have a Peerless gas boiler the burner will not shut off. I have just purchased the house and the boiler hasn't been on for a while. I have replaced the sensors and installed a new thermocoupler and aquastat. It does have intermittent pilot light controlled by a honeywell smart gas valve. I heard that when the gas valve is bad the boiler will not shut off. I just wanted to check to see if anyone has had this problem before I spend money on a new valve.

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Old 10-27-2011, 05:59 PM   #2
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Gas boiler will not shut off!!


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Originally Posted by karldl View Post
I have a Peerless gas boiler the burner will not shut off. I have just purchased the house and the boiler hasn't been on for a while. I have replaced the sensors and installed a new thermocoupler and aquastat. It does have intermittent pilot light controlled by a honeywell smart gas valve. I heard that when the gas valve is bad the boiler will not shut off. I just wanted to check to see if anyone has had this problem before I spend money on a new valve.
What is the water temp getting to when it does not shut off?

Some boilers keep the water temp off the operator vrs the t-stat.

Might need to re-control the boiler to run off the the t-stat.

Post model # of the boiler.

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