Appliance Spares
Quick answer: A rattle or loud whirr from the back of an Omega OCD7C or OCD7HP dryer — especially with clothes coming out damp after a full cycle — usually means the rear fan blade has cracked, worn on its shaft, or come loose. The blade is what actually moves air through the machine; without it the heater runs but nothing carries the heat to the clothes. The replacement impeller costs $59.95 and fits behind the rear panel: a straightforward DIY swap.
Get the part: Omega dryer rear fan blade — $59.95 · find your model
What the rear fan blade does
Heat alone doesn’t dry clothes — moving air does. The rear fan blade (also called the impeller or blower wheel) sits on the motor shaft behind the drum and drives air across the heater and through the load, carrying moisture out. It’s a hard-working plastic part living in a hot, vibrating machine, and over the years the hub wears loose on the shaft or the blades crack.
A failing blade announces itself two ways at once: noise (rattling, clattering or a loud whirr as the cracked blade runs off-balance) and performance (cycles finish with the load still damp, because half the airflow is gone). If your dryer has both symptoms, this part is the prime suspect.
Symptoms of a failed fan blade
| Symptom | What’s happening |
|---|---|
| Rattle or clatter from the rear panel | Cracked blade running off-balance |
| Loud whirring that changes with drum speed | Worn hub slipping on the motor shaft |
| Clothes damp after a full cycle, heater working | Airflow collapsed — blade not moving air |
| Dryer runs hotter than usual, may cut out on its safety | No airflow across the heater |
| Burning smell without visible cause | Overheating from dead airflow — stop and inspect |
Airflow loss also mimics a blocked filter or vent, so clean the lint filter and check the duct first — it’s free. If airflow is still poor and the noise is at the rear, it’s the blade. A dryer that overheats badly enough to smell can also point at the heat restore side of the machine — the Omega and Euromaid dryer heat restore kit covers the OCD40WA-family models if yours turns out to be a heater problem on one of those.
Which models this blade fits
- Omega OCD7C
- Omega OCD7HP
Check the model sticker — on the door frame or rear panel — before ordering. Omega’s other dryers use different blades; if your sticker shows anything else, run the model through the part finder.
While the back is off, it’s worth a glance at the door hardware too — the door lock and door hook for the OCD7C and OCD7HP are cheap and commonly worn.
How to replace the fan blade step by step
Safety: unplug the dryer at the wall before removing any panel. If it just ran, give the heater ten minutes to cool.
- Unplug the dryer and turn it around so you can work on the rear panel.
- Remove the rear panel screws and lift the panel away.
- Photograph the blade before touching it — how it sits on the shaft, which way it faces, where any clip or bearing sits.
- Remove the old blade. Depending on build it pulls off the shaft or is held by a centre fastener. A cracked hub often comes away easily; stubborn ones need gentle, even levering at the hub — never the blades.
- Fish out any broken pieces from the fan housing; a loose shard rattles forever and can jam the new blade.
- Fit the new blade the same way the old one sat, pressed fully home so it can’t wobble.
- Spin it by hand — it should turn freely without touching the housing.
- Refit the panel, plug in, and run a short cycle. The dryer should be quieter immediately and back to normal drying times.
Repair cost in Australia
| Option | Estimated cost | Time |
|---|---|---|
| DIY fan blade replacement (part only) | $59.95 | 30–45 minutes |
| Tradie call-out + blade fitted | $200–$320 (labour + part) | about 1 hour |
| New 7kg dryer | $500–$1,000 | — |
Frequently asked questions
How do I know it’s the fan blade and not the belt?
A snapped belt stops the drum turning at all — you’ll hear the motor but see no tumble. A failed fan blade still tumbles normally; the giveaways are rear-panel noise and damp clothes. The dryer drum not turning guide covers the belt path if your drum isn’t moving.
My Omega is heating but not drying. Is that always the blade?
Not always — a packed lint filter or crushed vent duct starves airflow the same way, so rule those out first. If airflow is weak at the door with a clean filter and clear duct, the blade or its fit on the shaft is next.
Can I glue a cracked fan blade?
No. The blade spins fast in a hot box — adhesive repairs let go and become rattling shrapnel. Blades are cheap; replace it.
Is this a DIY job on a heat pump model like the OCD7HP?
Yes — the rear fan blade swap itself is the same panel-off, blade-off job. Just keep clear of the sealed refrigerant components; you’re only touching the fan on the motor shaft.
There’s a burning smell too. Should I keep using the dryer?
No — stop using it until it’s fixed. Dead airflow makes the heater run far hotter than designed, and that’s how lint fires start. See dryer smells like burning for the safe diagnosis order.
My model isn’t the OCD7C or OCD7HP. Which blade do I need?
Put your exact model number into the part finder — we stock rear fan blades for a range of Australian-market dryer brands, and the housing and hub differ between them.
Related
- Euromaid and Omega dryer parts in Australia
- Dryer smells like burning — the safe checks
- Dryer drum not turning — belt diagnosis
- How to replace a dryer belt
- Find the right part for your Omega model
Disclaimer: this article is general information only and is provided without warranty of any kind. Appliance designs vary between models and production runs — always follow the manufacturer’s instructions, switch off and unplug the appliance before starting any work, and confirm parts against the model number on your appliance’s model sticker. Any repair is undertaken at your own risk and Oz Appliance Spares accepts no liability for injury, loss or damage arising from work performed after reading this guide, to the maximum extent permitted by law. If in doubt, use a qualified technician.
