Baxi 105e fault

[baxi105e]

Please Help,
I have Baxi 105e combi boiler approx 3 years old when you run the hot water for approx 3 mins it the flame cuts out and you then get cold water after approx 1min it then powers up starting the whole cycle again resulting in a luke warm bath. The central heating side seems ok could anyone please point me in the right direction.
Thanks.

[kevplumb]

plate heat ex full of carp

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a little thanks

goes a long way

[Agile]

The installer evidently did not properly clean the system when installing the boiler. Thats often done by power flushing.

Unfortunately after three years its a bit late to blame him and expect him to do anything about it.

Presumably you have never had it serviced?

Tony

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ARGI Registered Engineer

[mrbaxi2009]

baxi105e wrote:

Please Help, I have Baxi 105e combi boiler approx 3 years old when you run the hot water for approx 3 mins it the flame cuts out and you then get cold water after approx 1min it then powers up starting the whole cycle again resulting in a luke warm bath. The central heating side seems ok could anyone please point me in the right direction. Thanks.

over the years any diluted debris from the rads dry out and bake inside the plate heat exchanger. Power flushing doesn't prevent this. You could install a filter on the return to prevent it happening again. You are best off taking the plate heat exchanger out and buying some cleaner from your local B & Q and that will get you going.

[kevplumb]

Quote:

You are best off taking the plate heat exchanger out and buying some cleaner from your local B & Q and that will get you going.

yeah right

__________________
a little thanks

goes a long way

[mrbaxi2009]

kevplumb wrote:

Quote: You are best off taking the plate heat exchanger out and buying some cleaner from your local B & Q and that will get you going. yeah right

don't knock it until you have tried it

[scatmanjohn]

mrbaxi2009 wrote:

kevplumb wrote: Quote: You are best off taking the plate heat exchanger out and buying some cleaner from your local B & Q and that will get you going. yeah right don't knock it until you have tried it

I've tried it. It didn't work

Although i have to admit the stuff didn't come from B&Q

A diyer's best bet is to stick a new one in IMHO

[baxpoti]

mrbaxi2009 wrote:

kevplumb wrote: Quote: You are best off taking the plate heat exchanger out and buying some cleaner from your local B & Q and that will get you going. yeah right don't knock it until you have tried it

If you are mrbaxi why are you using B&Q

[Agile]

mrbaxi2009 wrote:

over the years any diluted debris from the rads dry out and bake inside the plate heat exchanger.

I dont see that !

How can anything "dry" when its full of water ?

Tony[/b]

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ARGI Registered Engineer

[bengasman]

mrbaxi2009 wrote:

over the years any diluted debris from the rads dry out

Inside a wet central heating system?

mrbaxi2009 wrote:

Power flushing doesn't prevent this.

Are you sure? I have never had this problem on heating systems I powerflushed before I installed the new boiler.

mrbaxi2009 wrote:

You could install a filter on the return to prevent it happening again.

The water circulates inside the boiler in dhw mode, a filter on the return will do little in that case.

mrbaxi2009 wrote:

You are best off taking the plate heat exchanger out and buying some cleaner from your local B & Q and that will get you going.

Until it blocks up again. IF the op can get the hex out, AND put it all back together again.
How long have you been a RGI?



Cleaning or replacing the hex will only work so long. The system needs to be thoroughly cleaned. If this is done with a powerflush, the hex will be unblocked at the same time. Provided the flush is done properly of course.[/b]

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Don't feed the troll.

[baxpoti]

bengasman wrote:

How long have you been a RGI?

What do you mean. This is the quality of the newer Heateam engineers

[Timd01]

I agree.

[rojaca]

Debris in the form of flakes appears to be particular culprit in blocking plate hex. Certainly can't think of an instance on own installations when powerflushed of any problems.
On questioning customers most will say system was 'flushed' at time of install, (except if NORTHERN GAS customer) however the specifics of what this flush entailed are usually quite vague.
I have known flakes to be present on newly piped systems, several years old, which I have put down to either poor qual' manufacturing of rads (cheap) or insufficient/incorrect dosing of inhibitor.

[Newcastle88]

baxpoti wrote:

bengasman wrote: How long have you been a RGI? What do you mean. This is the quality of the newer Heateam engineers

I agree the Heateam engineers here in Newcastle are useless. I had one of my customers wait 4 weeks for a diverter valve under warranty because the engineer told her he had to order it and it was out of stock. PTS had 5 in stock and the engineer who eventualy came back had one as his van stock??????? Where have all the good engineers gone Baxpoti?

[davebgas]

Quote:

(except if NORTHERN GAS customer)

What is this supposed to mean?????? WTF do the transporter have to do with flushing???

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