Ferroli F30 combi problem

[damo6]

hi i have one of the aforementioned boilers that has the following problem.

basically when i turn the central heating on the boiler fires and the heating comes on but within about 30 seconds to a minute it starts to hiss and splutter the pressure gauge starts to flicker rapidly between the 1.5 bar its on and just over 2 then it shuts itself down.
we still have our hot water supply though.

does anybody have any advice before i have to start calling in a plumber?

cheers

 

[Gasguru]

Make sure you havn't closed all the radiator valves.

Check the valves under the boiler are open (the extreme left and right valves should be vertical).

Pump may be jammed/dead.

 

[st albans plumb]

hi there sounds like your pumps lagging try putting some washing up liquid in the system around a bottle on avarage system but leave it in there any probs give me a ring on my name is toby good luck

 

[Gasguru]

Ignore previous posting this guys a t**t - see his other postings.