Sub-Zero repair across the Newton villages

The village houses that were renovated in the nineties are running 500 and 600 series units that have now done twenty-odd years, and most of what fails on them is still a serviceable part: fan motors, defrost heaters, thermistors, gaskets, door cams. The kitchens redone in the last ten years have current dual-refrigeration columns whose faults tend to be electronic rather than mechanical.

Those two are diagnosed differently. On the older cabinets we are timing a defrost cycle and reading resistances; on the newer ones the first useful information is often what the control is reporting about itself. It is worth saying which one you have when you call.

Most Newton built-ins wear custom joinery, and the thing owners worry about is the panel rather than the appliance. Reasonably so — it is heavy, it was hung by a cabinetmaker, and it is aligned to a millimetre against the doors either side of it.

Panels come off with the unit still in place, get set aside flat, and go back to the alignment they were found at, which is measured before anything is loosened rather than judged afterwards. If a hinge has sagged and the alignment was already off, that gets pointed out rather than quietly reproduced.

A finished lower floor with a bar refrigerator or a wine cabinet is common enough here that we ask about it. Those units sit in warmer, less ventilated cabinetry than a kitchen column does, and they are the ones that quietly drift for a year before anyone opens the door and notices.

• Undercounter cabinets read at the shelf, not at the display
• Wine zones checked against each other, top shelf included
• Condenser access in a built-in bar run, which is usually the whole problem
• Drain path traced where a unit is sitting on a finished floor