V8Eng –
No-one is advocating bad, or even dangerous, workmanship- just the ability to repair equipment, whether that be done by a business or oneself. I hinted at that in my OP.
Today's episode of Dare To Repair also focussed on the practice of wilful obsolescence by declaring a rigid time of only a few years after which spares will not be available, even for equipment which could be made to last 20 years and more.
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My first washing-machine had been my sisters. Her husband is not very mechanically-minded and didn't think it could be repaired. So he went and bought a brand-new one – which my sister reckoned was not as good.
They offered me the old for free if I thought I could mend it. All that had happened was the pump had leaked and ruined its own motor
£25 for a new pump & motor set from a local, independent domestic-appliance repairer and spares stockist, about 3/4 hr work… I owned that machine for I think over 15 years before it next broke down, and this time my survey showed even if spares were still available the machine was pretty well all-done, with extensive corrosion setting in.
A trip to my local independent appliance shop, from whom I've also purchased a fridge, freezer and microwave; and on delivering the new they rook away the old.
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I think the trade is conditioned to believe in throw-away and replace even when it makes no difference to them, commercially.
The combination gas boiler in my previous home started to fail to deliver hot water to the shower, and the gos fitter thought after various tests it needed a new control board… at £350.
"How much?" I looked at the board and pointed to the ordinary transistor radio/cassette player on the worktop. "There's a lot more electronics in that wireless set for a fraction of the price!"
The gas fitter agreed, and added that although the boards are repairable the manufacturers won't allow even the trade to repair them. He succeeded in making some sort of repair but after a few months the problem started again. This time I carefully noted what was happening. I called the firm again.
Back to re-considering the pcb, but this time I gave him my notes and said innocently, "I don't know anything about gas boilers but I do have some background in electrical and mechanical engineering, and wondered if it's something to do with that unit up on the flue, perhaps? Just a guess from those symptoms…"
I forget if I told him I'd more than guessed, had tested it with a multi-meter and hence been using a rather elaborate routine involving the kitchen hot-tap and bridging the switch's terminals each time I wanted a shower!
It was the fail-safe diaphragm switch that verifies the air flow from the fan before switching the burner circuit on. The replacement cost only a few quid, too.