Massachusetts and New Hampshire households put a lot of appliances in unheated space. A second freezer in the garage, a spare refrigerator in the basement, a washer and dryer in a mudroom off the back of the house.
Those spaces are fine for eight months of the year. Then it drops below freezing outside and we start taking the same three calls.
The garage freezer that thaws in January
This is the counter-intuitive one, and it catches people out every winter.
A freezer's thermostat measures the air inside the cabinet, not the temperature of the food. When the garage itself drops to 20°F, the air inside the freezer stays cold on its own, the thermostat is satisfied, and the compressor never runs.
That sounds fine until you remember that a freezer needs to be at 0°F, not 20°F. Without the compressor running, the contents slowly warm to whatever the garage is, which in a mild winter week is well above freezing.
The freezer is not broken. It is doing exactly what it was designed to do in a room it was never designed for.
What to do: check the appliance's rated minimum ambient temperature. Many are only rated down to 40°F or 55°F. Manufacturers sell garage-ready models with a heater that keeps the cabinet air warm enough for the thermostat to behave sensibly, and some older units can be fitted with a garage kit. The alternative is moving the freezer inside.
Refrigerator ice makers and water lines
Water lines running through an unheated crawl space, garage wall or exterior wall are the ones that fail. Ice forms in the small-bore tubing before it forms in a house pipe, because there is so little water moving through it.
The first symptom is usually the ice maker stopping. The second, once it thaws, is water somewhere it should not be.
What to do: if a fridge with a water line lives against an exterior wall in an unheated space, shut off the supply at the saddle valve before a hard freeze and drain the dispenser. It is the same logic as draining an outside tap.
Laundry in a mudroom or unheated basement
Washing machines hold water in the pump and the hoses after every cycle. That water freezes, and when it freezes it expands, and a plastic pump housing splits.
A cracked pump does not announce itself until the next wash floods the floor.
What to do: if a laundry space genuinely drops below freezing, run the machine's drain-and-clean cycle after the last load, and disconnect and drain the fill hoses if you are leaving the house for a stretch of cold weather.
Dryers are less vulnerable, but their outside vent flap is not. Ice forms on the flap, holds it shut, and the machine then runs into its own exhaust. That produces exactly the "runs but does not dry" symptom, and it is worth checking before assuming anything is broken.
Condensation when things warm up
The other half of the problem is the thaw. Appliances that have been sitting cold pick up condensation when warm humid air reaches them, and condensation on control boards is how a machine that survived the winter dies in March.
If you have moved an appliance in from the cold, let it sit at room temperature for several hours before plugging it in.
The one that is actually urgent
If a garage or basement freezer has thawed and refrozen, the contents are not safe simply because they are hard again. Refreezing does not undo the time spent above 40°F.
If you cannot tell how long it was thawed, throw it out. That is an unpleasant sentence to write about a full chest freezer, and it is still the right advice.
FAQ
Is my freezer garage-ready?
Check the manual or the rating plate for a minimum ambient temperature. If it says 55°F or 40°F, it is not designed for an unheated New England garage.
Can a garage kit be fitted to an existing freezer?
On some models, yes. It is a small heater and thermostat that keeps the cabinet air in range. We can tell you whether your model supports one.
My basement fridge stops working every winter and starts again in spring.
Same cause as the garage freezer. The ambient temperature has dropped below what the thermostat can work with.
Should I unplug appliances I am not using over the winter?
For a freezer, no: an unplugged freezer with the door shut becomes a mould box. Empty it, clean it and leave the door propped open instead.
We cover 155 towns across Greater Boston and Southern New Hampshire, including plenty of garages and basements. If something has stopped in the cold, call before you write it off.
