A smelly fridge is one of the most common household complaints — and one of the most unpleasant. Whether it's a lingering odour after you've cleaned out old food, a chemical smell you can't identify, or a musty stench coming from the back, fridge odours can usually be fixed without spending a cent on repairs.
Here's a step-by-step guide from the team at Oceania Appliances in Wetherill Park.
Why Does My Fridge Smell?
1. Spoiled or Forgotten Food
The most obvious cause — and the most common. Old leftovers, forgotten produce, spilled sauces, or meat that's gone off can leave behind strong odours that cling to plastic shelves and door seals long after the food is removed.
Fix: Remove everything. Wipe down all surfaces with a solution of bicarbonate of soda and warm water (2 tablespoons per litre). Pay attention to the drawers, the door compartments, and the underside of shelves. Leave an open container of bicarb soda inside for 24–48 hours to absorb remaining odours.
2. Dirty Door Seals
The rubber gasket around the fridge door traps moisture, food particles, and mould — especially in the folds. This is a very common source of musty or mouldy smells that persist even after a full clean of the interior.
Fix: Clean the seal folds with a soft toothbrush and a diluted white vinegar solution. Run the brush along the entire length of the seal, paying attention to the corners. Allow to dry completely with the door open.
3. Drip Tray or Drain Pan Overflow
Most fridges have a small drain pan or drip tray underneath — usually accessible from the front or back — that collects condensation from the defrost cycle. This tray can accumulate stagnant water and develop mould or bacteria, causing a persistent background odour you can't locate.
Fix: Pull the fridge out from the wall and locate the drip tray (check your manual for location). Remove it, wash thoroughly with hot soapy water or diluted bleach, and dry before replacing.
4. Blocked or Dirty Drain Hole
Inside most fridges is a small drain hole at the back of the main compartment — it allows defrost water to drain into the tray below. If this gets blocked with food debris, it creates a breeding ground for bacteria and mould inside the fridge itself.
Fix: Look for the drain hole at the back wall of the main fridge compartment (usually near the bottom). Clear it with a cotton tip or pipe cleaner, then flush with a small amount of warm water. Run the water through until it drains freely.
5. Chemical or Burning Smell
A chemical smell — sometimes described as plastic, burning, or acetone — is worth investigating more seriously. It can indicate:
- A new fridge off-gassing (normal for the first week or two)
- Refrigerant leak (requires professional assessment)
- An electrical fault near the compressor or fan motor
If the smell is coming from the back of the fridge near the compressor, or if it's accompanied by reduced cooling performance, have it checked by a technician.
6. Freezer Odours Spreading to the Fridge
Many fridge-freezer combos share air circulation between the two compartments. Strong freezer odours — from freezer-burned meat or uncovered foods — can circulate into the fridge section.
Fix: Clean the freezer with the same bicarb solution. Check that all frozen foods are properly sealed. Clean the vents between the compartments with a soft brush.
When to Replace Instead of Clean
If your fridge smells even after a thorough clean, and especially if it's also not cooling properly, the issue may be a failed component — drain pump, fan motor, or compressor. At that point, consider whether it's worth repairing or replacing.
At Oceania Appliances, we stock a range of tested, clean refurbished fridges from $249, all fully cleaned before sale and covered by a 3–6 month warranty.
Visit Us
2/14 Centre Place, Wetherill Park — open 7 days, 10 am to 8 pm. Free delivery across Sydney. Call us or visit the showroom to see our current stock.