Salt air, 32250
Marine aerosol is the governing failure driver here. It settles on
condenser fins, on hinge hardware and on stainless panels, and it keeps
working in the damp long after the breeze drops. Cleaning intervals on the
beach have to be materially shorter than they are five miles inland.
Corrosion note: pitting on hinge pins and fastener heads usually shows up
before any cooling complaint does.
The installation
A large share of the cabinets on this island were fitted into openings
that were never built for them. A machine compartment that cannot exhaust
recycles its own hot air, head pressure rises, run time rises, and the
cabinet gives up its last few degrees in the hottest week of the year. We
measure grille clearance and exhaust temperature before we read anything
else, because every other reading is contaminated by that one.
Panel-ready doors put real weight at the outer edge of the swing, and
hinge hardware carrying it in salt air stiffens years before it breaks.
Storms
About 68 thunderstorm days a year go through
this coast. Control boards fail from repeated surge exposure, not from one dramatic strike. The symptoms are intermittent: a fan running at
the wrong time, a display that resets, an alarm that will not clear. We
check what a board is being told before we condemn the board.