Mend > Home Heating Systems

Hot water but no central heating?

Hi,

having an odd problem with the heating today. i can get as much hot water as i want but cannot persuade the CH to come on.

burner kicks in if hot water is run but nothing happens even when CH is turned directly on.

When i switch the motorised valve (honeywell) to manual it causes the boiler\burner to kick in before almost instantaneously reseting itself.

any ideas?

JD

JD
May 2012

Honeywell Heating, Home Heating Systems Hot Water Central Heating

check power to/from
room stat
& timer [CH ON]
sending power to boiler pump & motorised valve

manwithnoname
May 2012

its a Glow Worm Micron 50ff. think its a two way motorised switch. pump (three speed) is set to two. anything else i can provide?

JD
May 2012

Would help you a lot more, if you gave the type make model etc of boiler. From what you have said, Not a combi, BUT still a lot of different systems about.

LOTS more info needed

SD
May 2012

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