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  1. Plumbing
    I have a rental house with an A.O. Smith water heater, where the tenant has now been without reliable hot water for a week and a half. This is a model GCV 40 100 built in 2006. First I made a vacuum attachment and tried to clean the largely inaccessible air intake screen below the burner. That...
  2. HVAC
    Hi! I have an ancient 40 yr old A.O.Smith gas boiler (HW-300 A)and I'm trying to light it this afternoon. It's not given me troubles before but this time, it's acting up. I can light the pilot flame ok with a match but when I release the red Safety/Reset button, the flame goes out. The...
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