Combi Boiler Help, advice and problem solutions on all aspects of home appliances from washing machines to TV's

[vbotham]

[b]Pressure on biler is 3.5 recommended no higher than 2.5. How do you reduce pressure. I know how to increase. Vinny[/b]

[jsk64]

the easiest way is to drain some water out of the system

[misty]

[quote="jsk64"]the easiest way is to drain some water out of the system[/quote] i agree but how do you do that

[Ken Woodchef]

Hi, it may be worth going round the rads and bleeding them, this can sometimes be the cause of pressure build up in the system due to the reaction of the water on the metals in the system, but be aware of how to top up the pressure at the boiler before doing this because if the presure drops below a certain level the boiler may not start up.

Suggest get someone to watch the pressure as you bleed the rads,but don't let it drop below 1 Bar.

Alternatively, find a drain tap on the central heating pipes, usually at a low point in the system and drain some water slowly into pan by turning the small square nut on the valve.

If in doubt, seek help from a plumber.

Hope this helps
Ken

[property man]

Use the blow of valve this will drain to the outside to save mess

[TheDoctor5]

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