Recent content by Jonh57

Yes, and i'm fitting it on a 2018 Worceser 29 CDi classic. The problem is Worcester have replaced this part with a newer universal one to work in more boilers. The original version of this return manifold that is leaking on my boiler doesn't have this light circular part as shown in the above...

I just ordered a Worceser CDi classic Return Manifest/unit , part number is 87161064420. A photo is attached of the unit upside down. What does slotted light circular piece in the centre control when turned. You can fit a flat headed screwdriver and turn it, it arrived brand new fully turned...

I'll try PTFE tape wrapped around the top thread. In the meantime, is it safe to use the boiler (only the instant hot water) with the Magnaclean isolated, effectively the CH flow and return are isolated.

The Magnaclean on my boiler is leaking so I isolated it turning the two black valves to the off position. I have ordered a new seal but in the meantime is it safe to use the boiler just for Hot water while keeping the Central heating switched off. Boiler is a Worcester Greenstar 29CDi (Combi)...

Boiler is over 10 years old. The burner does not start(no spark or ignition) but there is no boiler lockout. Boiler carries on as if it has fired with noise from pump and fan.

Replaced pressure switch, same problem. Low pressure red light is on, boiler will not fire up, water pressure is at 1 bar.

Boiler is a grant Vortex Pro oil boiler, the low pressure light is on resulting in boiler not firing up. The Low pressure switch is activated even when there is enough water and boiler is pressurized. Anyone come across this.

It is only possible to put in on one way.

Hi, In the service manual for the Heatslave oil 12/18 it states under Diverter valve: 'Port A' is Domestic Hot Water and also the default position. 'Port B' is Central Heating.

No, the hot water does not work if only that is selected when the tap is turned on. The HW heats the heat tank up until thermostat is satisfied, then switches the boiler off. The heat tank does come up to temperature when asking for HW only. The problem being when the hot tap is turned on the...

When turning the boiler on the timeclock is calling for both hot water and central heating with the priority being hot water. The heatslave tank heats up to the setting on the hot water thermostat. When turning the hot water tap on the diverter valve immediately moves from 'port a'(hot water) to...

It is definitely the condensate pipe. I put a balloon around the smaller copper prv outlet and nothing came out over 3 days.

Just to check, this symptom wouldn't be caused by the secondary heat exchanger? This part: https://www.plumbcenter.co.uk/product/worcester-bosch-87161082120-heat-exchanger-20-plates. Over the last week I have actually been using the boiler with the main water refill constantly on slightly, to...

It has a manufacturer date of August 2008, I think it was bought early 2009. If it was the heat exchanger, would it leak that fast. It is losing around half a cup of water every 6-7 seconds, the boiler is completely empty after 5 minutes. Something else that might be of relevance. There is a...

Boiler is a Greenstar 30CDi combi. Last week the pressure dropped to 0. After filling boiler up to 1.5bar it will drop to 0 bar in less than 6-7 minutes. Went under the floorboard and checked all piping, no signs of leak. Eventually I found the condensate pipe is discharging glugs of water with...