Appliance Spares
Quick answer: The most common cause of a Blanco dishwasher not heating — dishes cold and wet at the end of a cycle, tablets half-dissolved, glassware filmy — is a failed heating element. Confirming the fault costs nothing and takes ten minutes with the checks below. Replacing the element is a job a confident DIYer can do with the machine unplugged and pulled out of its cavity, but it means working on mains wiring in a wet appliance, so it is also an entirely sensible job to hand to a tradie. Either way, confirm the fault before buying anything.
Last updated August 2026
Not drying and not heating are usually the same fault
A dishwasher has one heat source. The element heats the wash water, and the residual heat it leaves in the dishes at the end of the final rinse is what dries them. So a machine that has stopped drying has very often stopped heating — it just goes unnoticed for a while, because the cycle still runs to completion and nothing beeps.
Before blaming the element, rule out the free stuff. An empty rinse-aid reservoir produces wet dishes with a perfectly healthy element, and plastic containers come out damp in every dishwasher ever made — the dishwasher not drying guide walks through rinse aid, venting and the plastics problem before any parts talk.
Blanco sells into a crowded field — our parts catalogue documents spare parts for 47 appliance brands sold in Australia — and this failure looks much the same on all of them: full cycle, no leaks, no drama, cold wet dishes and a tablet that never fully dissolved.
Which heating element fits your Blanco
Open the door and look for the model sticker along the edge of the inner door panel or the side of the tub opening. You are after a code that reads like BFD645X or BDW4610X. Match it to the table:
| Your model code | The element to order |
|---|---|
 BFD4W, BFD4X, BFD5W, BFD5X, BFD6W, BFD6, BFD9 | Blanco heating element for BFD4W, BFD4X, BFD5W, BFD5X, BFD6W, BFD6 and BFD9 |
 BFD6S, BFD645X, BFID346X, BSID346X | Blanco heating element for BFD6S, BFD645X, BFID346X and BSID346X |
 BDW146X, BDW34X (also covers the four codes above) | Blanco heating element for BDW146X, BDW34X, BFD6S, BFD645X, BFID346X and BSID346X |
| BDW4610X, BFDWC65, BFDWC65X, BID7, BSD5X, DW2 | Blanco heating element for BDW4610X, BFDWC65, BFDWC65X, BID7, BSD5X and DW2 |
 Omega or Midea badge, or no match above | Omega, Blanco and Midea shared dishwasher heating element — confirm with us first |
Note that BFD6S, BFD645X, BFID346X and BSID346X appear on two listings — either covers them; the second simply spans two extra models. If your code is not in the table at all, photograph the model sticker and the old element and send both through before ordering. Elements that look alike can differ in mounting flange and terminal layout, and an element is not a part you want to force.
Confirming the element before you buy
Work down this ladder in order — each step is cheaper than the one after it.
- Rinse aid and loading. Top up the reservoir, run a normal cycle with crockery rather than plastics, and see what comes out. No parts, no tools.
- The mid-cycle steam check. Thirty to forty minutes into a normal cycle, crack the door open — carefully, and stand back, because escaping steam burns. A face full of warm humid air means the machine is heating and your problem is drying, not the element: back to the not-drying guide. Stone-cold air and cold water mean a heating fault.
- The tablet tell. Detergent tablets are formulated to dissolve in hot water. A tablet sitting half-melted in the bottom of the door dispenser at the end of a cycle points the same way.
- The multimeter test. With the machine unplugged from the wall, get to the element terminals and test resistance across them. A reading means the element is intact; an open circuit means it is dead. This is the definitive test.
Some brands announce this fault on the display — on a Bosch the same failure throws a code, covered in the Bosch E09 heating fault guide — but do not count on a code here. Diagnose it physically. And be honest with yourself about step 4: if the element reads intact but the machine still runs cold, the fault is upstream in the wiring, a thermal cut-out or the control board, and that diagnosis is genuinely tradie territory.
Before you touch anything: this is mains work
A dishwasher combines mains power and water in one box, and the element is the highest-current part in it. Unplug the machine at the power point before removing a single screw — switching it off at the door is not enough. If your machine is hard-wired into the wall rather than plugged in, stop: disconnecting fixed wiring is work for a licensed tradie, full stop. Never test or inspect anything with the power connected, and if the machine has tripped the safety switch at the board, treat that as confirmation the fault is electrical, not an invitation to reset and retry. Product Safety Australia’s guidance on electrical appliances is worth a read before you start: productsafety.gov.au.
What the replacement actually involves
The element itself is a bolted-on part with push-fit terminals. The work is everything around it:
- Isolate power at the wall and water at the tap, then disconnect the inlet hose and drain hose.
- Undo the bench-top or cabinet fixing screws and walk the machine out of its cavity onto towels.
- Access is from below or behind, depending on the family — lay the machine on its back on cardboard, or remove the base or rear panel.
- Photograph the wiring before disconnecting anything. Terminal positions matter and memory is not a wiring diagram.
- Swap the element, seating the new seal or clamp exactly as the old one sat. A pinched seal here leaks onto your floor, slowly.
- Reconnect, then run a test cycle with the machine still out of the cavity so you can see the base stays dry before pushing it back.
If you need the installation clearances or a manual for your model along the way, Blanco’s Australian support pages at blanco.com.au carry documentation for current and recent models.
DIY or tradie: an honest call
This is one of the less DIY-friendly jobs we list parts for, so here is the case both ways.
For doing it yourself: the part is a straightforward like-for-like swap with no special tools beyond a multimeter and a screwdriver; nothing needs calibrating afterwards; and doing your own diagnosis means you only buy the part the machine actually needs.
For calling a tradie: the machine has to come fully out of its cavity, which is awkward, heavy work in a tight kitchen; the wiring is mains; a mis-seated seal shows up as a slow leak weeks later; and if the multimeter says the element is fine, the remaining suspects need someone who diagnoses these machines every week. Hard-wired machines take the choice away entirely — that is licensed work.
A fair rule: if the phrase “test resistance across the terminals” reads as routine, this job is within reach. If not, pay for the hour of labour and keep your weekend.
Frequently asked questions
Where is the model number on a Blanco dishwasher?
Open the door and check the model sticker on the edge of the inner door panel first, then the side of the tub opening. The code reads like BFD6W or BDW146X. Photograph it — the letters matter more than they look.
The water gets hot but the dishes are still wet. Is the element failing?
No — a machine that heats its water has a working element. Wet dishes with hot water point to rinse aid, venting or a load full of plastics, and the not-drying guide covers those in order.
Can I keep using the dishwasher while I wait for the part?
It will run, but expect poor results — detergent is formulated for hot water, so cold cycles leave residue and film. There is no harm in running it, just not much point beyond a rinse.
How do I know it is the element and not the control board?
The multimeter settles it. An open circuit across the element terminals is a dead element. If the element reads intact and the machine still will not heat, suspect the wiring, a thermal cut-out or the board — and get a tradie to confirm before spending parts money.
Is it legal to replace a dishwasher element myself in Australia?
Rules on electrical work are strict. Replacing an internal part like-for-like in a plug-in appliance, with the plug pulled, is generally treated as appliance repair. Anything involving fixed wiring — including disconnecting a hard-wired machine — needs a licensed tradie. If you are unsure which side of the line your machine sits on, ask before you start.
My machine wears an Omega or Midea badge. Will a Blanco element fit?
Some elements are shared across those badges and we list one for exactly that case, but confirm with your model code first rather than matching by appearance — flange and terminal layouts differ between families.
Get the right element first time
Run your model code through the part finder, or send us a photo of the model sticker and the old element and we will confirm the match before you order. Parts dispatch same day from Sydney’s Northern Beaches.
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.
