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Hi, i have a vaillant combi boiler that connects to a Danfoss 103e5 timer switch, with no thermostats. I can not find on the boiler anywhere the model number. I have pulled apart the 103e5 and it has 5 wires, live, earth, neutral for power and two wires for the switch pin 1 is output and...

I'll upload later, it's mcb that's blowing. Unless I damaged the cable further down last week when I did the rest Of The wiring. Just seems odd it's stop working today

Hi. I spent ages laying flooring in the loft, I decided to use one very last screw and screwed through the cable for the lighting! I have cut the damaged part and reconected with a junction block, but soon as I throw the breaker, it trips. I have taken every single bulb out, but still does the...

After mentioning about sills I checked the sills and can see that the sealant used between the wall and the sill has come off! Maybe this is why it is leaking! Can anyone suggest a good way to deal the upvc sill to the concert wall??

The window seals were fitted after the boxes, i had double glazing fitted a few years ago. there is no ventilation in the room, all the other rooms have a vent, but this one has no vent, i also dont have any fans in the flat. i placed a sheet of clear plastic bag over the wet patch as someone...

Hopefully someone can help! For a long time not i have been sufering with a couple of wet patches on the wall in the living room. These dont seem to be getting worse, they dont get mouldy ( apart from were i covered one to see if the moisture was coming from inside or through the wall! ) and...

i tried searching, but obviously looked for the wrong thing! and this thread sorted the problem, thanks for the advice

this is replacing the old type pcb

Hi there i was having problems with my boiler, the fan light (50) was flashing, after reading through posts on here, i decided to buy a new pcb. i have conected ( i think ) everything up coprrectly, but now when i turn it on the 30 & 40 degrees lights flash, and nothing else happens, any...

point taken! i wanted a new thermostat anyway, as the old one only had one temp and i wanted differnt ones during the day. guess i need to find out where the short in the wire is, just shocked that its that and not a boiler fault! oh well, least it will keep me busy!

sorry, relied on someone else to check it! the room thermostat has been replaced today by me, and still same problem! hence all the posts today! so now even more confused lol

*UPDATE* FFS, i aked my flat mate to disconect terminal one whilst i was at work, they said they did it. now i think they disconected something else totally! i removed the wire from terminal one, and low and behold, it stops heating the water! reconect the wire and it starts again ( done...

ok, got my crappy multimeter out! no continutity, but i read the resistance across the switch, too much for the meter when it wasnt pressed, and not hardly any when the switch was depressed, unless im totally mistaken, meaning the switch it working ! pants, wanted it to be something simple :@

the evening prior to it being on 24/7, the microswith was "clicking" a lot , for no reason ( ok, would need something to make it "click" ) but could be a faulty microswitch in that case! ill pop to the shops and get a replacement microswitch tomorrow, least ill know 100% that it isnt that!!

Does the pin push the microswitch and thus starting the heating and pump? ( just trying to get my head around the basics of it, but that would make sence! ) if so, wouldnt disconecting the lead just mean the heating wont turn on? if not, what else pushes the pin from the divider and activates...

the microswitch on the CH is still pushed in by the pin , and hot water comes out of the tap!!

also, this happens regardless of what the timer on the boiler says, so even if it is ment to be off, it still heats the water!!