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Thanks Agyle, the model is Microgenus II 24 MFFI. It was serviced a couple of years ago, so I guess another service wouldn't hurt... Can anything explain that it only plays up in cold weather?

I have a 4-5 year old Ariston boiler which works perfectly in the summer, but intermittently misfires during cold weather in the winter months. The symptom: the gas valve opens and closes almost immediately. The cycle repeats itself a few times until the boiler locks up, displays an...

Yes, that's exactly what cycling is, it happens often in mild weather when the room temperature goes down slowly or oscillates around the programmed temperature. To overcome cycling, all electronic thermostats implement either a temperature hysteresis (ie threshold between the on & off...

Watch out for those Heatmiser thermostats, they don't have any anti-cycle function and end up calling for heat on & off in sub-second intervals in some situations. Not good for your boiler pump, diverter & gas valves :( Mentioned it a couple of years ago to the manufacturers who...

Most ceiling switches are loud as the plasterboard/void combination amplify the switching noise. Best to replace with a standard wall mounted switch outside the bathroom.

Just check that no debris has been caught in the cardridge which would prevent the disk from closing properly. Otherwise I doubt you will find a replacement cardridge & you'll just have to replace the whole tap...

You should be able to unscrew the top part (chrome) by hand, this will give you access to the hex nut which you can undo with a spanner.

I have just had a builder come to my house to quote & install a kitchen. Upon inspection, he advised he could not install the kitchen as the circuits were radials and this was no longer legal in kitchens... :shock: Have not heard of this one before, are there new regs in place?

You may be exceeding your boiler's maximum flow rate, try to reduce the flow...

They won't ask to see the benchmark card but they will ask over the phone for the installer's details (inc. Corgi reg number) & date of installation.

Does the flow pipe from the boiler feel like 90°C? Is hot water working normally?

Plastic pipes would need to be sleeved as well. Corrugated conduit is available from DIY stores & electrical wholesalers.

1- Yes 2- No 3- No if your pipe is sleeved in corrugated conduit allowing expansion :)

1- Specific to microwaves, high voltage/high current capacitor 2- Easy, just be careful not to damage the new magnetron & seal when inserting it in the cavity. 3- No, just don't loose the screws :) 4- Depends how much ££ a new magnetron is... 5- Probably not worth it 6- Or sell...

Your combi is overheating :roll: It can probably only handle 10 to 12L/min at 35°C rise (check the spec), you're asking for over twice as much. Reduce the flow rate until you get a stable temperature. You can install a pressure reducing valve on your mains supply to avoid exceeding...

A thermostatic valve will help but it won't do miracles, if the inlet water gets cold, the valve won't make it hot... :shock: Modern combis are normally quite good at regulating the HW temp as long as the flow rate remains constant. As it's been suggested, you first need to figure out...

Very unlikely that the problem is related to the tube itself. You may have a failure in the power supply section, however this is often the result of something else gone wrong. Unless you're good at electronics, $25 is pretty reasonnable to get a diagnostic.

No service fuse but a main breaker (RCBO) as pictured in http://electrical-contractor.net/PC/Fr1.jpg Can be turned on & off at will, but breaking the seals will get you in trouble...

Anticipate the next revision of the regs requiring an RCD to protect the whole system?

I always use the ones UAL provide on their flights, don't know how much they cost the airline, but doubt they would be over £50. They're excellent at limiting the constant humming noise from the engines and make long flights a much more relaxing experience. If you're sitting in a cabin...