Help on Baxi Boiler please

[Laura1989]

Hi All,

Hoping someone could offer some advice before I get a professional in (I like to gather some knowledge first)
I have a Baxi Combi Boiler (Sorry unsure of the model) which was fitted new two years ago. I've had no problems with it until last week my partner bled all the radiators in the house and now whilst the heating is on the pressure goes really high to the point water pours out the overflow when the heating is switched on, once the heating is turned off the pressure drops to zero and cuts the hot water/heating out until topped up again. I can't see any noticeable leaks in the house and regularly check for leaks around the boiler.
Any idea's what could be wrong?

 

[ShaunCorbs]

Very common issue but needs a gas safe engy to sort expansion vessel flat

 

[Deleted member 32524]

temporary fix. Get partner to manually drain a small radiator then reopen valves and this will help till someone can fix it.

 

[Ric2013]

Basically, the air in the rads was acting as an expansion vessel, but this is not a good long term solution as air in the rads = air in the water = rust.

 

[Harvest Fields]

Hi All,

Hoping someone could offer some advice before I get a professional in (I like to gather some knowledge first)
I have a Baxi Combi Boiler (Sorry unsure of the model) which was fitted new two years ago. I've had no problems with it until last week my partner bled all the radiators in the house and now whilst the heating is on the pressure goes really high to the point water pours out the overflow when the heating is switched on, once the heating is turned off the pressure drops to zero and cuts the hot water/heating out until topped up again. I can't see any noticeable leaks in the house and regularly check for leaks around the boiler.
Any idea's what could be wrong?

When was it last serviced? This problem should have been checked then? Standard problem on a lot of boilers.

 

[cjg]

If your boiler is only 2yrs old and you have had it serviced every year, then 1 your engineer should have spotted it and represured to correct bar . With no charge to you, if and I say if, the expansion has failed a new one would be fit free of charge.