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Old 01-08-2009
pgchd
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The two lines at the "bottom under the burner are the lines from your engine for preheat, etc. The 3 motors on the back of the unit are the zone circulators for the heating zones,etc. in the coach. If you tried to pressure test the "tank" and it started pushing fluid out, then you probably do have a leak in the coils and need to take the cover off where the rivets are. Just do yourself a favor first and make sure you cannot see any leakage around those lines and ciculators.....use a mirror and an LED flashlight I'd hate to see you do so much work only for a leak around one of the zone circulator feeds with a pex band, etc...........good luck! (from one with "mature eyesight" as well hoping for an optimistic outcome)
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