Washing machine odour in June? Here's why Burnaby's humidity is the culprit

Why June humidity makes washing machines smell worse

Burnaby sits in the heart of Metro Vancouver's humid zone, and June brings warm, damp air that's ideal for mould and bacteria to thrive—especially inside a sealed appliance like your washing machine. Even if you've never noticed an odour before, the jump from spring to summer moisture can trigger it suddenly. Your machine's drum, rubber gasket, and drain system are all at risk when humidity lingers.

The usual suspects: where odours hide

That sour or musty smell isn't coming from thin air. It's usually trapped in three places. The rubber door seal collects lint, detergent residue, and moisture that create a perfect petri dish for bacteria. The drum itself can harbour soap scum and fabric softener buildup, especially if you use powder detergent or skip rinse cycles. Finally, the drain hose or pump can hold stagnant water if it's not fully emptied after each load—or if it's kinked and pooling water inside.

Weekly hot-water cycles are your first line of defence

Run your washing machine empty, on the hottest water setting available, once a week through June and July. No clothes, no detergent—just hot water. This cycle flushes out residual soap, bacteria, and moisture that settle between washes. If your machine has a "clean drum" or "self-clean" cycle, use that instead; it's designed to do exactly this. One 45-minute cycle a week takes almost no effort and prevents odours from building up in the first place.

Leave the door open and wipe the seal

After every load, prop the door open for at least an hour (or longer if you're home during the day). Moisture is the enemy; air circulation kills it. Once a month, grab a damp cloth and wipe around the entire rubber gasket—the ring that seals the door. You'll likely find black specks, lint, or a thin film of slime. That's mould and bacteria. Wipe it away, then dry the seal with a towel. This single habit eliminates 80% of odour problems in humid climates.

The monthly deep clean: vinegar or commercial cleaner

Once a month, run a cycle with either white vinegar or a commercial washing machine cleaner (like Affresh or Clin). Follow the product instructions—most involve pouring the cleaner into the drum and running a hot-water cycle. Vinegar is cheaper and works well; use about two cups in the drum. The acid dissolves soap buildup and kills odour-causing bacteria. If you've already got a strong smell, repeat this cycle twice.

Check your drain hose

While you're investigating, look behind your machine at the drain hose. It should slope downward toward the drain or standpipe with no kinks or loops. If it's kinked or coiled too tightly, water pools inside and stagnates. Straighten it gently, or ask a technician to reposition it if you're not comfortable doing it yourself.

The bottom line for summer entertaining

With Father's Day just over two weeks away, now's the time to tackle this. A single hot-water cycle today, followed by a monthly vinegar clean and the door-open habit, will keep your machine smelling fresh all summer. Burnaby's humidity won't go anywhere, but your washing machine won't smell like it either.