Furnace Always Building Pressure
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nepacoal
- Member
- Posts: 1701
- Joined: Wed. Nov. 21, 2012 7:49 am
- Location: Coal Country
- Stoker Coal Boiler: Keystoker KAA-4 / "Kelly" and an EFM 520 at my in-laws
- Hand Fed Coal Boiler: Harman SF-260 - retired
- Coal Size/Type: Buck
It probably just leaked out of the Schrader valve... If it's more than 5 years old, you might want to get a spare to have on hand.
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ODDSNENDS4U
- Member
- Posts: 93
- Joined: Wed. Oct. 07, 2009 6:51 pm
- Location: Newtown PA Heating 5600 Sq. Ft. built in 1854
About 8 years old I believe
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Lightning
- Site Moderator
- Posts: 14669
- Joined: Wed. Nov. 16, 2011 9:51 am
- Location: Olean, NY
- Stoker Coal Boiler: Modified AA 130
- Coal Size/Type: Pea Size - Anthracite
Repeat what you did earlier. Drain boiler pressure to zero. Add air to the expansion tank to 19 psi. Then turn the auto fill valve back on.
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ODDSNENDS4U
- Member
- Posts: 93
- Joined: Wed. Oct. 07, 2009 6:51 pm
- Location: Newtown PA Heating 5600 Sq. Ft. built in 1854
I will now be patient and see if my problem is solved. Will check it again tomorrow after work. I will keep you all updated. Thanks again and hope you all have a very happy new year
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ODDSNENDS4U
- Member
- Posts: 93
- Joined: Wed. Oct. 07, 2009 6:51 pm
- Location: Newtown PA Heating 5600 Sq. Ft. built in 1854
Woo hoo 24 hrs no overpressure. Bucket is dry. Thanks again guys!!! Dennis 
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StokerDon
- Site Moderator
- Posts: 7496
- Joined: Mon. Nov. 11, 2013 11:17 am
- Location: PA, Southern York County!
- Stoker Coal Boiler: Gentleman Janitor GJ-5, Van Wert VA-600, Axeman Anderson130 X3.
- Hand Fed Coal Furnace: Harman SF3500 reduced down to 3 grates connected to its own plenum
- Coal Size/Type: Rice, Chestnut and whatever will fit through the door on the Harman
- Other Heating: Noth'in but COAL! Well, Maybe a little tiny bit of wood
NICE! Glad you're back in business! 
-Don
-Don