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Re: Tecnik Double Fan Oven: Intermittent Earth Leakage Trip
Replacing the element – note: Internet-wide search for an element draws a blank but an email to UK-WG produces the result from Dave in ~1 hour. In future – ask here first…
Re: Tecnik Double Fan Oven: Intermittent Earth Leakage Trip
RCD is on spec for both trip time and current – tested by a qualified electrician. Still get the same cumulative combination – wee woman turns on oven to heat a bun then kettle for coffee and if I am in the workshop with lathe/mill on (running or not) then darkness. I’ve run the lathe (Jaguar CUB inverter) and mill (1.5Hp single phase!!) for several years without issue until about 8-10 months after kitchen install and new bathroom lights installed by said sparky. Mill is now on a Mitsubishi inverter – both inverters are fitted with RFI filters. The only new elements in this saga are (or were) kettle – replaced and Tekniks fan oven, so I’m now going to drag it out, inspect wiring and replace the fan oven element. Other household items include several switch-mode PSU’s which are also known for leakage. Sparky had a notion to split off the workshop supply before the RCD – it’s on a separate consumer unit – and add an RCD there, thus avoiding an RCD race – but that would mean ripping out part of the kitchen….
Re: Connection Details for Simmerstat EGO50.52076.070
The good news is that you can easily get inside this generic unit to see how it works without damaging it.
Release the metal front plate by gently lifting the tangs with a screwdriver then underneath is a plastic shield which isn’t glued in or anything, it just pulls out.The bi-metal heater is connected between 2 and 4.
The bi-metal switch is between P1 and 2.
There is an auxiliary switch between 4 and P2 (P2 is the same metal strip as PILOT).
The auxiliary switch is closed when the control is ‘not off’.
Note the short metal stub near ‘TOP’, in line with 2.
It is in fact the same metal strip as 2 so should be treated with respect i.e. it has mains voltage on it.Live in to P1
Neutral in to 4
Load powered from 2, returning to Neutral
Pilot Light from P1 to P2 (observe that the pilot wiring is a bit scary because it has a switched neutral).(From the Internet, of course)
Re: Mystery delay before activity in a ‘Carlton’ dishwasher
No other details or markings on this, I’m afraid (it was a cheapo ex-demo model and maybe kids pulled them off).
However, back this AM from a weekend away and decided to investigate. Took the top panel off (isolating first, of course!) and poked about a bit with a meter. Suspected the rocker switch actuated by the door handle. Dismantled the mechanism and sprayed into the microswitch with contact cleaner and then gave the switch a good working over.
Reassembled and hey presto – it now works on command.
I guess the micro switch mechanism became sticky over time and would only make contact after a delay.
