Make and model: Hetty Vacuum Cleaner (HET200-22)
Fault reported: Not working
Cost of replacement: £100-£140
Manufacturer support: 10/10
Cost of parts: £21.59, inc. carriage
Hours spent on repair: 1 hour with service
Tools needed: Screwdrivers, test meter etc
Sundry items: Silicone spray, cleaning materials
Repair difficulty: 4/10
Cups of tea: 1
Biscuits: Ginger Nut X2
If only everything was as well made and built to last as a Henry (or Hetty!) hoover. Simple as a knife and fork, with tried and tested technology, it’s a machine created by an engineer, for everyone to own, use and repair themselves, when needed.
A neighbour got in touch to say that their broken Hetty was about to be scrapped and asked if I could do anything with it. Of course, I said. To be honest with you all, I’m not that confident with all repairs, but I knew that in the case of this one, I should be fine as Numatic products are pretty well supported by the manufacturer. And this is the thing:
How many purchases do we make that consider; “will I be able to get parts for that one day”?
We all do it, but as a tinkerer I try and consider the longevity and likely need for replacement components when I’m considering handing over my hard earned wedge, at point of purchase.
The Hetty had been working fine, but had then conked out, mid clean. No drama, no noise, no smoke, it had just stopped. The owner had already checked the fuse, but that was fine (as they often are).
When things just stop and won’t restart, that symptom is often trying to tell you something and if you’re listening, capturing the way something fails and acting on the information can save you time and often money. It’s a trick I’m always trying to perfect, although one can be caught out anytime- but that’s half the fun.
- The machine stopped suddenly…
- Maybe the cable broke?
- Maybe the plug is damaged
- Maybe a component failed quickly
Expensive things like motors tend to start making noises, run slower than usual or smell bad before failing. They can ‘just stop’ of course, but it’s likely that there will be a build-up, so I proceeded with some confidence that the motor was probably fine. I always check motor bearings and brushes anyway, when servicing this type of thing.
Since the mains cable and plug were fine, it was time to delve inside. The Hetty top is simply held together with a few screws (normal cross head) which then frees the cable winder and motor assembly, when undone.
I suspected the two-speed control PCB as these can fail suddenly without warning and since I have no Numatic PCB tester (if there is such a thing), all I could do is prove the component as faulty, beyond reasonable doubt. A quick check with my multi-meter revealed that there was no output, when connected to the mains. Suspicious.
It is also possible to by-pass the speed control PCB on these machines, which I did. I connected the motor up without it’s 600W/1200W control circuit in the loop and the motor spun up just fine.
Often, I like to go direct to the manufacturer (where possible) for spare parts as you often get the truth about an appliance as well as the latest version of a part. Often, manufacturers continue to iron out bugs and develop upgrades for spare parts as these will be fitted to the latest models. A company such as Numatic seem to apply those upgrades retrospectively to older models too, so that all customers new and old, can enjoy the benefits. For information; UK spec speed controller part 208436 (red) replaces part 206735 (orange) for model HET200-22.
As I couldn’t find the part I needed on any website, a quick call to Numatic UK, gave me the information I needed. Even during Covid-19 lockdown here in the UK, the lady in Numatic’s spares department, working from her kitchen, was able to advise me on the upgraded part I now needed and arrange for it to be with me for the next working day. If that’s not good service, I don’t know what is. http://www.numatic.co.uk
With the new part installed, the motor spun once more, at the correct two speeds. Happy days.
All fine then. Not quite.
Hetty had been supplied with a red base, not the original pink one that Hetty should have.
As we all know… no? Just me then, Henry is red and Hetty is pink and there is a range of names and colours to choose from in the range.
When I tried to fit the Hetty top to the supplied red base, it didn’t fit. Quite a head-scratching moment, if I’m being frank with you. Had it never fitted? Had the owner simply just put up with it the way it was? Had there been some kind of strange swapping incident that I wasn’t aware of? Time to get some answers!
It turns out that my neighbour have both Henry and Hetty models and had given me the wrong base. They had assumed they are all the same. They’re not actually, see below.
The latest Henry and Hetty tops have a cut-out for the tool storage bracket moudling as shown on the red base above. The earlier Hetty I had in the workshop had no such bracket in the plastic. I did offer to modify the Hetty top I had with my Dremel saw, but this offer was declined!
With the right top and base paired up once more, I was happy, the neighbours were happy and another vacuum cleaner had been saved from being scrapped needlessly.
Time for another brew.