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Where my tape measure is corresponds to the leak inside. I have a pic of the recent insulation install and you can see the leak in the top left by the purlin beam. The lead work was new 10 yrs ago and no problems until this summer. Only had time to get up and look recently.

I have a chimney breast which is damp inside in the top bedroom. It’s on the party wall and in the middle of the chimney breast. I went out of the roof window and the lead apron and flashing are all good (all new install about 10 yrs ago for leadwork). In line with the leak at the top of the...

Ok I thought I might use a machine triangle piece of length that you can get in the timber merchant. Prob only need 30cm worth, but that 20x20mm size will be enough to divert the water away from the edge and into the outlet. Glue it down to the fibre glass with stixall then cover it in bandage...

Ok thanks will give it a go

The lead roof had no upstand, so we just copied what was there. The water is not coming over the edge anywhere else. It's just that the outlet is raised up a little so pushed the water to the side and then off the edge of the roof. I just thought a bit of lead would hold the water back around...

DIY

This is the roof

I have an outlet on a bay flat roof in the rear left side. Water flows towards the wall of the house and then down to this outlet. However, some water spills around the front side of the outlet and runs of the roof edge, causing dripping. The front edge is flat, with no raised profile. Is...

This all happened on Friday night after DV replaced. Heating was working but when I went to bed the boiler was off showing an F20 code I think (over heating). Wife had run the bath and it was Luke warm. So looks like end of evening the HW caused the boiler to stop. Then it gave out F75 code...

I see, yes all these things get done on the service. But the burner doesn't come off every year as I don't have it done every year. I think its been off 4 times in the 16 years and it is always pretty clean inside.

Update: I have got it working. I took out the water HE and used the brick acid to clean it out. Did 2 x 20mins standing then a flush out. When I started it up again the boiler came on, but only for a minute (heating only). There were a few loud noises, groaning as if something was blocked...

Can anyone say if the Descalers are ok to use or do I need a specific acid? Spirit of salts is online but I can get the descaler today

Looks like it’s the HW plate heat exchanger. I treated it before the diverter was changed on the day with spirit of salts. I guess I didn’t allow enough time to dissolve the line scale. It sounds like it is all gunked up in there. I’m going to try treating it again and if it doesn’t work...

Ok. Can you tell me what needs to be done on a service. I have it done every few years. Last done in jan this year. All engineers do is clean out the main burner. I’ve watched before and my burner is quite clean inside. Then it’s a new seal and that seems all they do. I have a mag pro 2...

I have no idea if it was tested. Pressure last night was 1.5 on filling This morning it’s 1.3 Engineer will call later this morning. I think something has happened to the pump Can anyone tell me what to here when you do a purge. Last night after googling this issue I ran the P.0...

A new boiler sensor was added a few months ago as a separate issue from all this. The boiler was taking in water as the valve wasn’t closed fully but I thought this was a sensor issue. That has been sorted now, but reading about the F75 issues it seems new pressure sensors are needed...

Now it says F 75, which is connected to the pump. Could any electrics have been damaged when doing this work?

Could the HE have become blocked when it was put back?

I’ve just tried the HW and it won’t fire. He had to drain down the boiler and removed the secondary HE because a screw on the DV wouldn’t come off using a screw driver. The screw had sheared off. He got it off with grips.

DV was changed as it was leaking. No leaks now. I will try what you said. A new AAV was also fitted. So it might be an air issue.