Changing an AAV

[Rework24]

Hi ppl,

My aav has started spitting water, i have a halstead ace combi boiler, i have read the manual and it seems quite easy. The part is only £20. Although i cant get it until tuesday!

Just wondering if there is anything i should watch out for or any tips/advice anyone can offer?

Thanks
Chris

 

[ChrisR]

Case seals might leak
don't use prv or boiler isolating valves or they'll probably leak
DOn't get water in electrics
Don't get electrics in you
etc

 

[Rework24]

Don't get electrics in you

LOL.
thanks for the advice, I was planning on havin the power off but i will cover the PCB and wires with a towel

Was gonna use the drain valve on a rad.

 

[Rework24]

boiler isolating valves or they'll probably leak

manual says to use CH flow and return valves, should i use the stop tap under the boiler instead?

 

[gas4you]

Stop tap will probably be just for cold inlet, not the system side.

As Chris says most isolating valves will leak/drip on older boilers if shut then opened.

Had one yesterday

 

[twgas]

put some plastic between towel and electrics in case you get more water than expected and towel becomes saturated

 

[Rework24]

As Chris says most isolating valves will leak/drip on older boilers if shut then opened.

how should i isolate the boiler then? The boiler is 6 years old.