The "fire box" (heat exchanger) for the furnace of package unit model
number PGB030050-1 made by Goodman Manufacturing may have a tendency
to crack due to a manufacturing, design, or both defect.
Since the replacement fire box (heat exchanger) comes with an "air
baffle" (37012-53S), re-directing the air flow on to the heat
exchanger, possibly to cool it more to prevent it from over heating
and cracking so soon; the flaw may be in the design or it may be a way
to try to get the fragile heat exchanger to last longer. If you have
a Goodman PGB030050-1 package unit the fire box will need to be
checked every time the unit is serviced. Furthermore, a repeated
cracking and replacement of the heat exchanger will cause the
auxiliary limit switch to eventually over heat and fail as well.
if the truth were to be known, the unit was probably over-fired from
the get-go. lowball unit, lowball contractor, brain-dead installer.
hey lets blame the manufacturer, they'll make a fine scape-goat.
Nope. Until you can prove the unit was installed as per manufacturers
specs, AND the unit was serviced on a regular basis, I'd say blame the
Carefully observe, the unit did not have a problem while it was still
in the manufacturers inventory, the 'problem' manifested itself AFTER
a cheap fuck purchased it, and a cheaper fuck installed it.
eons ago I replaced a bad blower motor for a customer, and gave them a
1 year warranty. big mistake. 11 months later, they call me up, the
motor has failed. Lesson learned. Now if you want a warranty, you're
also purchasing the maintenance contract.
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