Almost every "my fridge stopped cooling" call splits into two very different jobs, and you can tell which one you have in about ninety seconds without tools. If the milk is going warm but the ice cream is still solid, cold is being produced and not reaching the fridge side, which makes it a fan or defrost fault. Both compartments going warm together is a compressor, control or sealed-system problem. Same complaint, different parts, very different price.
The ninety-second check before you call anyone
Two places to look: the rear wall inside the freezer, and the space behind its lowest drawer once you slide the drawer out.
- •Freezer cold, fridge warm, and no fan noise from inside the freezer — the evaporator fan is stalled or its motor has failed. Cold air is being made and is going nowhere.
- •White frost coating the whole rear panel of the freezer — the defrost system has quit, and the coil behind that panel is buried in ice so thick the fan is pushing against a wall.
- •Both sides warm, compressor running constantly, condenser hot to the touch — think compressor start components, control board, or refrigerant. This is the one that needs instruments.
- •Both sides warm and the cabinet completely silent — start with the outlet and breaker, then the thermistor, inverter board or main control.
Frost tells the truth. A refrigerant leak leaves patchy, uneven frost on part of the coil and bare metal elsewhere. A defrost failure leaves uniform ice across the whole thing.
What each pattern usually involves
| What you see | Usual cause | What the repair involves |
|---|---|---|
| Fridge warm, freezer fine, no fan noise | Evaporator fan motor | A motor swap and about an hour |
| Sheet of ice on the freezer back wall | Defrost heater, thermostat or sensor | Full thaw, then one component in the defrost circuit |
| Warm everywhere, compressor cycling on and off | Start relay or capacitor | A small part on the compressor, straightforward |
| Warm everywhere, coil frosted in one spot only | Sealed-system leak | Regulated refrigerant work, and often not worth doing |
Those are categories, not a quote. The technician identifies the actual fault on site and gives you one fixed figure covering parts and labour before anything is dismantled, and it does not move afterwards.
The Chicago wrinkle: the condenser is choked
A good share of the "not cooling" calls we take through July and August are not broken at all — they are suffocating. Bottom-mount condensers on French-door units sit six inches off the floor and inhale everything in the room: pet hair, lint from a laundry closet on the same floor, dust from a kitchen rehab two years ago. The compressor keeps running, but the heat has nowhere to go, and the box slowly loses ground on a humid afternoon with the lake sitting at eighty percent.
Pull the toe grille off, look up with a flashlight, and if it looks like a grey blanket, vacuum it out and give the unit twenty-four hours. It is the only free fix in this article, and it works often enough that we tell people to try it before booking.
The second Chicago version of this problem is a refrigerator in a rear kitchen with two inches of clearance behind it because the rehab moved the wall. Same result: nowhere for the heat to go.
What to do with the food right now
- •Keep the doors shut. Even a struggling refrigerator loses cold slowly while it stays closed, and every look inside undoes an hour of its work.
- •Move anything genuinely perishable into the freezer, not out to a cooler on the back porch.
- •Do not turn the temperature dial colder. It will not make a stalled fan spin, and it runs the compressor harder for nothing.
- •If the freezer is iced over and you want to buy a day, unplug the unit with the doors open for four hours, then plug it back in. If cooling returns and fails again in two or three days, you have confirmed a defrost fault for us.
When repair stops making sense
We give the same advice on every call. If the unit is under about eight years old and the fault is a fan, heater, sensor, relay or board, repair almost always wins by a wide margin against buying a new machine, once delivery and disposal are counted. If it is twelve years old with a sealed-system leak, we will tell you to put the money toward a replacement instead. Nobody here earns a commission for talking you into a compressor.
The exception is built-in and panel-ready refrigeration, which is common in the city's rehabbed kitchens. Replacing a fitted column means a cabinetmaker as well as an appliance, so faults that would end a freestanding machine's life are worth repairing on those. We quote both paths and let you decide.
Booking a call
Refrigeration is the one category we treat as urgent, because the value of what is inside usually exceeds the value of the repair. Call before midday and there is normally a same-day slot. Have the model number ready if you can reach it — on most units it is on a sticker inside the fresh-food compartment on the left wall, or behind the bottom drawer. With that number we can often bring the failed part on the first visit instead of the second.
If you are in a managed building, mention it when you book. We file the certificate of insurance and reserve the freight elevator before the technician is dispatched, and in a lot of buildings that is the difference between a visit happening and a technician being turned away at the dock.