Guides
Diagnostics, written the way we would explain it on the phone
Three pieces that go further than one question does: the local dust and what it does to a condenser, telling a defrost fault from a door problem, and what changes when the water supply changes. No filler, and no pretending a sealed-system fault is a job for a Saturday morning.
After the short version instead? Every symptom, in seven groups — one question, one answer, and what to check first.
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Sub-Zero Parts Lookup in Denver: Rating Plate to Part Number
A Sub-Zero parts lookup starts with the model and serial number on the unit's rating plate, since one model can use different parts by serial range. How to read it, match filters, judge aftermarket parts and check warranty first.
Written by Tobias Reinhardt
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Ice Maker Problems After a Denver Water Lead Line Replacement: The Flush-and-Filter Sequence for Highland
An ice maker that quits a week after Denver Water's crew leaves your block is a supply-side event, not a failed module. Flush the branch line, fit a new cartridge, clear the inlet screen and check fill volume — in that order — in Highland, Capitol Hill, Cherry Creek and Washington Park.
Written by Tobias Reinhardt
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Frost sheeting the back of a Sub-Zero freezer: reading the defrost system
Ice building across the rear panel of a built-in freezer is a defrost fault, not a sign the freezer is working hard. How to tell a failed heater from a blocked drain or a leaking gasket, and what is worth checking before the drawer stops closing.
Written by Tobias Reinhardt
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Why a Sub-Zero condenser clogs so fast in Denver kitchens
Dust, cottonwood fluff and dry spring wind load a built-in condenser faster here than almost anywhere. What that does to the cabinet, how to tell it apart from a real sealed-system fault, and what to check before you call.
Written by Tobias Reinhardt
Talk to someone
Read it and still not sure?
Half the diagnosis is in how you describe it, and the description is what decides which parts ride along. Technicians work 8:00 am to 8:00 pm, any day of the week.