What's going on
A fridge doesn't make cold. It pulls heat out of the cabinet and releases it into the room through the condenser, which sits at the bottom or back, and on many models also runs through the side walls. That's why the manual lists clearances for the sides, top and back. When the air beside the cabinet is already hot, the fridge has a harder time getting rid of that heat, and the compressor stays on longer to keep up.
Older kitchens often have one open spot for the fridge, and it's right next to the radiator or pressed against the stove. In summer the fridge seems fine. Once the heat comes on, food on the door goes soft, the freezer struggles, and the cabinet hums almost nonstop. Some warmth on the side panels is normal on models that release heat there. If those panels feel hot and the inside isn't cold, the fridge is losing the fight.
What you can check in five minutes
- Put a fridge thermometer on a middle shelf. FDA guidance is 40°F or below for the fridge and 0°F for the freezer.
- Measure the gap between the fridge and the radiator or range, and compare it with the clearances in your manual.
- Unplug the fridge and vacuum the front grille and any condenser coils you can reach without taking panels off.
- Make sure a radiator cover, shelf or trash can isn't blocking the vent grille at the bottom of the fridge.
- Track whether the trouble starts or gets worse when the building's heat is on.
- Run the paper test on each door gasket. A weak seal adds to the load.
Rent, own or co-op: who handles it?
The radiator is part of the building's heating system, so don't remove it, reposition it or adjust it yourself. If the fridge belongs to the landlord, ask the super whether it can be moved or whether the building will put something between the two. In co-ops and condos, kitchen changes may need board or management approval. Check your lease or ask your building before rearranging anything.
What a technician will look at
- •Condenser coil condition and the condenser fan
- •How long the compressor runs compared with how long it rests
- •Gasket seal and door alignment
- •Temperature readings in several spots inside the cabinet
- •Whether there's a practical way to give the fridge the clearance it needs
Andre's field note: Every heating season I see fridges that worked fine in July struggling in January, just because the radiator came on a few inches away. Even a small gap helps, and so does a clean condenser. A mini fridge wedged beside a radiator has the same problem on a smaller scale. In prewar apartments on the Upper West Side and similar buildings, the layout is often the real cause and the fridge is only reacting to it.
Is your fridge losing the battle with the heat? Call ProFix NYC at (929) 699-8358 and we'll take a look.