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Hi, I have an Ideal Mini C24 Combi, about 5-6 years old and have a problem with the DHW going from hot-cold-hot-cold etc. I have looked at the boiler whilst turning a hot tap on and it appears to fire up for a while and then turn itself off, only to turn back on again (repeat to fade!)...

Thanks for all your help, I recharged the expansion vessel and now everything seems to be ok. Out of interest the the boiler pressure when cold is 1 bar and 1.75 - 2 bar when hot, is this ok? Thanks again.

Sorry thpought you meant somewhere else. I've taken the filling loop off and there is no water passing so the valves seem to be ok.

Filling loop is closed, what valves are you refering to? Thanks again

It goes up but over a number of hours, eg overnight.

I have an Ideal Mini C24 Combi boiler and a lot of the time the boiler has too much pressure. It started when we turned the heating back on about six weeks ago, I noticed that the pressure was a bit low so topped the system up with water to about 1 bar when cold . When the heating was on the...

Thanks very much to everyone for all your help.

What size MCB would recommend?

I'm thinking of having the whole house redone at some point in the future. For the time being though does that mean I can use either of the spare MCB slots? Is that quite an old design of consumer unit? Thanks for all your help.

From what I can make out it looks the same, only difference is that the main switch is on the left hand side (or your pic is upside down!)

Mines different to the one in the picture. It just has a row of MCBs with the exception of the shower taking up the space of two slots and marked RCBO. I've no idea how old it is as it was here when we moved in.

Thanks. Out of interest this is how the MK sentry unit runs from left to right: Main switch Shower Ring circuit (g floor) ring circuit (1st floor) Cooker (has a socket) Spare Lights Lights (1st floor) Smoke alarms Spare

even fairly competent is a compliment! Thanks I'll have a look.

Hi, Further to a previous thread on the subject I’m planning on putting in the electrics in my new garage and wanted to see if anyone had any advice/warnings before I send the form off to the council. I have done quite a lot of home electrics in the past but have never done any outside...

Is there any particular reason for this? Thanks

Ok thanks, I'll have a work out what I'll be using and come back. I thought I could use 4 core SWA for two way switches. I want to be able to turn off the lights in the garden from either the house or the garage. If I can't use the SWA what should I use as I need to be able to do this as my...

I don't know that 4kw is the total demand, just a figure I got from the calculator but I would have thought that 4kw was more than enough. Do you think 3kw or less would be a more realistic figure? If I use 4 core (I want to put in a couple of two way switches) then the voltage drop...

Yes there's a second door thanks. :lol:

Hi , The former shower RCBO is a B40 so I take it that is 40 amps? Another poster said not to use it anyway as I don't want two RCBs on the SWA? I don't plan to use the sockets in the garage to power any heaters, just power tools, mower, the electric roller door and possibly a MIG...

Thanks for the advie. The RCBO has 30ma on it. Is this the rating? The earth is as fitted when we move in, a stake going to underneath the floorboards in the hall. Out of interst why should the join between SWA and T+E be accesible? The floor in the bedroom is easliy taken up...