We have been able to hear water rushing through the pipes of our baseboards this year and have never noticed this in the past. Husband bled all the valves of air when we first turned it on. Now, even though the water was still rushing through, it is cold. There IS a pilot light and it will fire up if we manually turn the shutter, but then it clicks off again. If we bleed some of the water off, it will fire up briefly then shut down again. PSI is between 12 and 15. ANy clues?? Please help. The house is cold and its Sunday!