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Posted by HeatPro on October 21, 2005 at 20:39:42:
In Reply to: Heatmaker HW series boiler explodes posted by Jence Mandizha on October 21, 2005 at 19:09:52:
The usual cause is a dirty spark/flame sensor and/or incorrect gas pressure. Other causes can be damaged and incorrectly placed burner parts, a failing ignition control or clogged exhaust. It won't go away until all parts are reliable, in the factory-designed location and workiing as designed which takes a major disassembly, cleaning, overhaul and checkout.
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