Settings kept resetting themselves overnight and nobody could tell me why. He logged the supply across a full evening, then replaced a sensor that had been feeding the control nonsense.
Rufus T.2026-08-21
Sheet index A-03
Field notes
What actually fails in this city, written up while it is still fresh. Diagnostic order, salt air, storm damage, parts and lead times, and kitchens that were drawn before the appliance existed.
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Sub-Zero freezer noises: normal or a fault
How to tell the normal hum, whir and gurgle of a Sub-Zero from fan, compressor and ice maker sounds that need attention.
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Why buy a Sub-Zero: how the design works
How Dual Refrigeration, the model code, the ice maker and the built-in grille work, and why that design shapes the faults owners notice.
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A 36-inch cabinet in a 1926 opening
What actually has to be measured before a built-in goes into a kitchen that predates the appliance category.
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OEM parts and what independent means
What an independent shop can and cannot do, stated plainly, including where the manufacturer's own channel is the better route.
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Salt air and the condenser
Fouling is reversible and corrosion is not. Where the line falls in the coastal Duval ZIPs.
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Storm season and control boards
Why board failures cluster from June to September, and why we read voltage under load before quoting one.
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Repair or replace a built-in
What actually goes into the repair-versus-replace decision on refrigeration that is trimmed into a cabinet run.
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What we measure before opening anything
The diagnostic sequence, in order, and why the sealed system is the last thing we look at rather than the first.
What do the faults in these notes cost to fix?
One number is known before the van moves: $80 to read the cabinet, credited against the work if you approve it. Everything scheduled beneath it is a band and not a figure, because the part sets the number and the part is not named until the readings are in.
| Item | Band |
|---|---|
| Reading the cabinet, diagnostic sequence | $80 flat |
| Door gasket or seal replacement | $230–$620 |
| Evaporator or condenser fan motor | $270–$580 |
| Defrost heater, thermostat or sensor | $240–$640 |
| Ice maker, water valve or supply line | $250–$670 |
| Electronic control board | $420–$860 |
| Compressor or sealed-system repair | $900–$2,340 |
$80 buys the readings; $2,340 is the ceiling of everything scheduled above it. The written estimate sits between the two and carries one figure, handed over before a part is ordered.
Asked and answered
Questions about the notes
- Are these notes about real calls?
- They are written up after the work, on faults this city produces repeatedly: corroded condensers on the beaches, boards worn down by 68 thunderstorm days a year, and openings drawn before the appliance category existed. Nothing here is a manufacturer bulletin.
- Do the notes quote prices?
- Where a figure helps, it is the same band the rest of the site publishes: $80 to diagnose, $420–$860 for a control board, $900–$2,340 at the expensive end. No note carries a number that is not in the price table.
Customer feedback
What owners said after the call
4.5 out of 5 across 71 customer reviews. Read every one of them.
An older cabinet in a tight 1920s alcove that I assumed was beyond saving. He read the plate before quoting anything, sourced the part for that serial run, and it has held since spring.
Bernadine C.2026-05-13
Warm air was pouring out above the door and I thought the whole thing was finished. It was a deck that had not been cleared since the house was bought, and one visit sorted it.
Rosamund C.2026-07-08