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Mend Boiler Code Turns

ideal isar?

boiler come on for no reason then code t shows and then turns off

san
August 2010
Sounds like the boiler is preheating the hot water and is therefore operating normally (no you don't have an option to turn off the pre-heat).

Carefree
August 2010
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Mend Heating, Home Heating Systems
Free repair help for home heating systems