Honeywell diverter valve problems

The Honeywell motorised valves we see most commonly in the UK are the Honeywell V4043H zone valve (Honeywell port valve) and the Honeywell V4073A mid-position valve (Honeywell port valve). Both motorised valves use the same Synchron valve motor. My system is fully pumped , ie , heating and hot water , controlled by a Honeywell diverter valve.

Problem is that when the heating turns on the . Honeywell Motorised Valve problems? Jul 2008Diverter valve problemspostsJan 2008Radiators on when only water should be being heatedpostsJun 2005More from community. Honeywell V4073A mid- position diverter valve.

I've lived here and on previous occasions I've had no problems. In my experience out of 1problems with new valves are not . Dec 20- I isolated the problem to the Powerhead on the Honeywell port valve. Plumbers ForumsJan 2012Diverter valve failed - set at manual setting as temporary fix. Jan 2012Honeywell Valve hot and buzzing and vibrating pipework - UK. Dec 2011Honeywell port valve Problems!

Buzzing Honeywell Motorised Valve - How easy to fix. ALso called a 'port valve', 'Zone valve', 'heating valve' 'port valve', 'honeywell valve' or diverter valve.

Have had problems with this for a while - coming back from a weekend. I suspect a sticky zone valve - there are 2-port Honeywell valves. My central heating has a problem with the port diverter valve. It's a fully pumped system with a Y plan configuration using a Honeywell .