280 works fine in ch mode but when hot tap opened boiler fires but nothing through plate heat exchanger. diverter valve? if so are they easy to change
worcester 280 no dhw
- Thread starter rego
- Start date
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The diverter valve powers over to the ch position and rests in dhw mode so i cant see it sticking in the ch pos but it poss ,can you see the lever on the side of the valve move after a ch demand (takes 12 seconds). if the ch is off and you turn a hot tap on does it fire up.
arm on diverter valve is not moving. stuck in position b. yes it does fire up when ch off, but no hot water
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Yeap, diverter valve sounds stuck, did one on thursday gone actually 
Remember to fully drain down sysytem and cover the pcb box with a plastic bag and a towel (Tip) + turn off electrics as well. Failing that, get a guy who knows and works on them.....
Remember to fully drain down sysytem and cover the pcb box with a plastic bag and a towel (Tip) + turn off electrics as well. Failing that, get a guy who knows and works on them.....
IF this is the one with the Honeywell actuator then the plunger will be stuck down.
They can be cleaned or often freed up without taking them apart. There is a repair kit for them.
If I am thinking of another model then sorry!
Tony
They can be cleaned or often freed up without taking them apart. There is a repair kit for them.
If I am thinking of another model then sorry!
Tony
changed diverter vale. all ok. many thanks guys
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