Recent: Will I need to replace my garden tap?

Home Ask Question Search Categories Most Recent Unanswered Help

Mend > Home Heating Systems

Mend Worcester Bosch Powermax 155 Combi Air Boiler

HOW MUCH AIR TO PUT IN EXPANSION VESSEL? POWERMAX BOILER?

I have a Powermax 155 Combi which loses pressure a lot. Ive heard that if you pump up the expansion vessel then this might stop the loss - but how much air do I put in?

Mike
November 2008

Worcester Bosch Worcester Bosch Powermax 155 Combi Heating, Home Heating Systems Air Boiler Combi

Before you do that check for water in ex vessel tyre valve if you have then get a new one.

daz71
November 2008

Doubt if its the ex vessel. But if you really want to, use a tyre pump. pressure approx 0.5-1 bar. make sure you have depressurized ch system first and leave drain cock open to allow the water to escape when pressurizing vessel.

daz71
November 2008

Automatic Answer

We may have found other answers which could help you.

Click here for Air Boiler Combi

Related Questions ...

Mend heating boiler radiator

Problem with the pressure in combi boiler?

My valent combi boiler has problem with the pressure which keeps on falling which causes the radiator not to h... [Read more]

Mend pressure worcester heat

Faulty Worscester 35 CDi loosing pressure?

My Worcester 35cdi has had 4 replacement heat exchanger's in less than 10 years the first 2 were within the fi... [Read more]

Mend combi boiler pressure air lock

How can I stop my Worcester 24i from building up too much pressure ?

My Worcester 24i combi boiler has just started to build up pressure beyond the blow off valve setting (IE. in ... [Read more]

Mend combi boiler heating system water pressure

logic30 + combi?

my logic30 combi boiler registers water pressure of 3 bar when it should read 1 to 1.5 bar. consequently I exp... [Read more]

Mend fit gas safe

can I fit this myself or do I need to be gas safe engineer?

I have a Main combi 30 eco boiler and the automatic air vent is leaking

Mend combi boiler Worcester Bosch dripping

how to fix my combi boiler?

the auto air venmt on my worcester bosch 24i rsf boiler ents off every now and then for no reason now it seems... [Read more]

Mend rid air system

How can I get rid of trapped air in central heating system?

After replacing the small rubber seal on the shaft of the hydraulic actuator in my BIASI 24S Combi boiler, the... [Read more]

Mend combi heat exchanger sensors

Ideal Combi Logic boiler "L3" fault. ?

Whenever the temperature knob is turned up higher than half way, the boiler shuts down, flashing L and 3. Have... [Read more]

Mend boiler flow potterton

How to repair boiler air flow sensor?

The Air flow sensor on my Potterton combi boiler has packed in, Potterton do not supply this part anymore, can... [Read more]

Mend combi boiler heating pressure gauge

pressure gauge on combi boiler?

I have a Ravenheat RSF 820/20T fanned combi the pressure gauge on it shows an increase in pressure above the i... [Read more]

Mend combi boiler no heat radiators cold

how to fix my combi?

hot water ok turn heating on pump going but no heat all rads air out water topped back up so arrow is in the ... [Read more]

Mend combi heating system pressure

Firebird combi 90K problem with hot water?

we have a problem when the bath is running, it appears to lose its' pressure and seems to produce both air and... [Read more]

Mend boiler combi bubbling

How can I fix my Worcester 28CDI RSF Combi Boiler?

Water is continuously bubbling out of the Automatic air vent on the top of the boiler. This continues to do so... [Read more]

Mend boiler pressure heating system

expansion vessel pressure?

we have an oil fired combi with a separate free standing 24 litre expansion vessel some 3 metres away. Follo... [Read more]

Mend combi pressure maintenance

how do i refill worcester 532/i combi boiler?

came back of holiday notice 3 radiators not heating bled all the air out now boiler is not working tried reple... [Read more]

Mend boiler Worcester fault

Worcester Bosch Greenstar ri 24kw?

Mend Worcester Bosch Heating Hot Water

How do I rectify aU9 Code?

Mend boiler pressure radiators

over pressure?

Mend heating pump greenstar

Greenstar Highflow 440?

Mend boiler heating lockout

Greenstar 24Ri boiler, fast flashing - can I reset?

Mend boiler heating pilot light

Worcester Bosch 240 pilot light going out?

Mend Worcester Bosch Combi Boiler Home Heating

Worcester Bosch 532/i Combi Boiler?

Mend Worcester Boiler Heating

Greenstar 25 combo boiler?

Mend heating boiler Worcester Bosch

Boiler cycle?

Mend combi boiler central heating temperature

Worcester Bosch 240 combi?

Mend Worcester Bosch Heating Lockout

Worcester bosch Highflow 400 rsf?

Mend code mode button

I have a greenstar 440 displaying d5, I have tried the reset code ?

How to mend ...

Find out how to mend just about anything

howtomendit.com for free repair help, information and advice.

Mend Home Heating Systems ...

Related Categories

Mend Convector Heaters

Convector Heaters

Mend Fan Heaters

Mend Oil Filled Radiators

Oil Filled Radiators

Topic

Powermax 155 Combi: Expansion Vessel Pressure