Potterton PUMA 80 - pilot keeps cutting out when C.H. on Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[tomcubi]

I hope you can help with a few tips. I wouldn't like to replace this Potterton PUMA 80 which is probably 10 years old, as we'll have to renew the whole system in 6 months, but the pilot keeps cutting out.
It happens when the central heating turns on. Today I ran the hot water several times and the pilot never cut out, but suddenly this evening some steam started to come out from the air vent 5 mins after the central heating turned on.
I'd be very grateful for any advice you can give me on this.

[eggers]

sounds like it's over heating, possibly the pump is wearing out or the system has poor circulation