Hmmmmm.... Those non-functioning registers are in different zones, so I don't think the "rapping the valve" solution will help in this case. That would help if you were just getting cold air from them. Seems more like an electrical issue. Were they working last time you put the heat on? I'd go looking for blown fuses first.......
EMaznio wrote:
My 2001 Monaco Dynasty has several heat registers that don't blow - 1 under kitchen sink, 1 under bath sink, 1 facing master bed and 1 under front dash. I have heat blowing from the other 3 registers. Suggestions on potential remedies?