"It's not cooling" is a description, not a diagnosis — and on a refrigerator the gap between those two is expensive.
Precision Appliance Repair diagnoses and repairs refrigerators across Mount Prospect — freestanding, integrated, American-style, and commercial.
Click Here To Call Number(833) 435-3480Tap to call, or take the readings below first.
This is the single most useful thing on this page.
People report a warm fridge. They rarely report the freezer — and the freezer reading is what identifies the system.
On most modern refrigerators, the cold is made in the freezer and blown into the fridge compartment. One evaporator, one fan, and a duct between them.
So a freezer holding 0°F proves the cold-making side is working. If the fridge above it is warm, the fault is in the delivery — a failed evaporator fan, a stuck damper, or ice blocking the vent from a defrost fault. All of them ordinary parts.
And it rules out the compressor and the refrigerant circuit, which are the expensive categories. You can't produce a properly frozen freezer with a failing sealed system.
Whereas both compartments drifting warm together points the other way — and that's when the fifth measurement earns its place.
Two thermometers and a few hours, and you've separated a cheap repair from an expensive one before anyone opens the appliance.
Not everything worth measuring needs a thermometer.
A reference, once you have the readings.
Evaporator fan, damper, or ice from a defrost fault. Ordinary parts.
Coils, seal, ambient, or the sealed system. Check the free measurements first — they resolve this more often than people expect.
A start relay, the control, or the compressor. Relays are inexpensive.
Coils, seal, or clearance — and this is the state that becomes an expensive failure if left.
A sensor, a thermostat, or a damper stuck open.
A sensor drifting, a defrost cycle misbehaving, or a door not sealing consistently — and this is the one where a written log over a few days is worth more than any single reading.
If any of those explains it, we'll tell you on the phone rather than charge you for a visit.
Either compartment is warming, there's water on the floor, or you can smell burning.
Or if it's sparking, tripping the breaker, or hot to the touch on the casing. Unplug it if you can do so safely.
Ice is building on the freezer back panel, the fridge is warm while the freezer is fine, or the compressor never switches off. All three are measurable, and all three are ordinary parts caught early.
Temperatures are correct and stable but the appliance is noisier than it was, a light or shelf has failed, or the ice maker has stopped while the fridge is fine.
"Freezer at 0, fridge at 52, compressor running constantly" is a diagnosis. "It's not cooling" is a description.
Most refrigerator faults are worth repairing. Fans, defrost components, thermostats, sensors, dampers, seals, drains, and start relays are ordinary parts with proportionate labour, and they cause the large majority of faults.
The exception is the sealed system — the compressor and refrigerant circuit — which is why measurement matters commercially as well as technically. It's the one category where a wrong assumption costs you an appliance you didn't need to replace.
The difference between the compartments identifies the system — and it rules the sealed system in or out before anyone opens the appliance.
It shows what the appliance believes, which on a drifting sensor is the fault itself.
A fridge holding temperature while running constantly is a fault — just not one that shows up as a symptom yet.
Airflow faults, ice, and a failing damper all produce temperatures that don't match the setting — and swapping a sensor that was reading correctly fixes nothing.
Because it's the measurement that should confirm a diagnosis rather than start one.
Across Mount Prospect, IL and the surrounding area.
A thermometer in each compartment costs almost nothing and turns a vague worry into a number.
We service refrigeration for restaurants, cafés, bars, convenience stores, and small food businesses across Mount Prospect.
Measurement isn't optional here — it's the record. Temperature logs and holding requirements mean a unit that drifts out of range is a compliance problem as well as a stock one — so the numbers are already being taken, which makes early diagnosis far easier.
And the duty cycle is the number most worth watching commercially. Doors opened hundreds of times a day, condensers fouling rapidly in kitchen environments, and defrost systems working constantly mean a unit can be holding temperature while running at or near capacity — which is a failure waiting for the busiest possible moment.
Temperature monitoring with alerts is worth its cost anywhere significant stock is held, because it turns an overnight drift into a phone call rather than a morning discovery.
The variables, so you can see where a number comes from.
You'll have the repair price before work begins, and a realistic replacement figure alongside it where that comparison matters.
Precision Appliance Repair proudly serves Mount Prospect, IL and the surrounding neighborhoods, repairing domestic and commercial refrigeration throughout the area. Unsure whether you're in range? Call and ask.
Click Here To Call Number(833) 435-3480Two thermometer readings — one in each compartment — left for a few hours with the doors shut. Around 37–40°F for the fridge and around 0°F for the freezer. The difference between them identifies which system has failed, and it's the single most useful information you can give.
Because it shows what the appliance has been asked to do, or what it believes — and on a unit with a drifting sensor, the display is the fault you're trying to find. A thermometer measures; a display reports.
A great deal. On most refrigerators the cold is made in the freezer and blown into the fridge — so a freezer at 0°F proves the cold-making side is working. The fault is in the delivery: a fan, a damper, or ice blocking the vent. And it rules out the sealed system, which is the expensive category.
Possibly, but check the free measurements first. Dirty condenser coils, a failed door seal, or inadequate clearance produce exactly the same reading — and all three are cheap or free to resolve.
That's a fault, even though nothing looks wrong. A healthy refrigerator cycles. One that runs constantly is working far beyond its comfortable range to hold that temperature — usually coils, a seal, or clearance — and it's the state that turns into an expensive failure.
Note the fridge temperature, open the door for thirty seconds, close it, and check again after an hour. A healthy appliance recovers within about that. A unit that takes hours is producing cold slowly — and it's declining before it fails.
Log them. Same time each day for a few days — because a pattern is worth far more than a single reading, and it distinguishes a drifting sensor from a defrost cycling fault or an inconsistent door seal.
It's ten seconds and it's the cheapest cause there is. Close the door on a sheet of paper and pull — no resistance means it isn't sealing. Test the whole perimeter, because seals fail on one edge first.
The sensor may have been reading correctly. Airflow faults, ice buildup, and a failing damper all produce temperatures that don't match the setting — and none of them are fixed by a new sensor.
Because it's the measurement that should confirm a diagnosis rather than start one. Almost every cheaper cause mimics a sealed system fault — so ruling those out first is what prevents an appliance being written off unnecessarily.
Longer than ten minutes. A refrigerator needs to run through a proper cycle to show its temperatures — a spot reading shortly after a restart tells nobody anything.
Almost always, unless the measurements point at the sealed system. And the duty cycle is worth knowing before committing — a unit that's been running constantly for years has done more work than its age suggests.
Two thermometers and a few hours separate an airflow fault from a sealed system one — and those two answers are separated by an enormous difference in cost. The paper test rules out the cheapest cause in ten seconds. The duty cycle catches an appliance in decline before it fails.
Precision Appliance Repair asks for both temperatures rather than one, diagnoses from readings rather than the door display, and takes the sealed system measurement last.
Click Here To Call Number(833) 435-3480