Question about Water Heaters

3 Answers

Ariston A01 fault combi boiler

Was working fine when moved in, for about an hour then the ch went off.

went into boiler cupbard and the boiler had a red error sign with A01 sign showing

its starts and ignites for arround 7 seconds then cuts out again

any ideas

Posted by on

  • 1 more comment 
  • djkallem Nov 10, 2008

    thats it really, just wont come on, bar is at 1.5 , the boiler itself works fine for arround 7 seconds then shuts down again

  • jan3503 Feb 28, 2009

    come home to find it cold and fault light AO1 showing press reset and after a while boiler lights up again but if the heating has been on 4 any longer than 30mins the boiler makes a very loud vibrating noise, and i mean loud, and the same fault light comes up again! its been doing it since it was fitted from new but have had many plumers out to fix it but in a few days or weeks it just starts all over again! what can we do, costing money we havent got now.....

  • francie434 Sep 16, 2009

    not getting hot water.combi boiler clicks when i run hot taps but boiler does,nt fire up

×

3 Answers

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

Its not definately the pcb. change the detection sensor first( £3.20p). if this doesnt fix a01 fault then change the main pcb(£145).

Posted on Jul 06, 2009

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

The A01 fault code is nearly always down to the pcb, 99% of the time in fact, its a common fault, but not common enough for ariston to be responsible for boilers out of the warantee. you can normaly check this yourself, while the tap is running check if the electrodes are still sparking even after the gas had lit, this means the pcb is not detecting the flame and trying to relight. eventualy it will lock out with a A01 code, if u reset it might work for a short time but eventualy u will get to the stage where it will no longer resart.
if your handy you can replace the pcb yourself, there is someone selling them on ebay for £85 thats a steel, its half the trade price never mind retail price!
pcb part number is 65103422 just search it on ebay!

Posted on Jul 21, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 104 Answers

Tell me more

Posted on Oct 31, 2008

  • 42windowman Nov 11, 2008

    here you go - the problem is the pcb board - and this is under warranty by manufacturer- ---





    the scenario is this - the boiler fires- the pcb board it not reconizing that it has had a sucessful fire- and shuts down. This a01 signal means failure to have sucessful fire . best of luck call service tech or supplier and do not forget to rate me - this is a 100percent solve as soon as that part is replaced-

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My boiler got 108 code error


ariston boiler error 108 - industrial steam boiler manufacturer

www.zgboiler.xyz/ariston-boiler-error-108/
Dec 16, 2015 - Free repair help - ariston clas he system error code 108. ... HE and I turned the yellow and two black levers/taps under my boiler and it started ...

Water pressure low in boiler no hot water or heating ' Screwfix ...

community.screwfix.com > ... > Plumbers' Talk
Sep 29, 2014 - My boiler stopped working yesterday morning. Water was not getting hot. Checked boiler (ARISTON CLAS HE 24) says error with code 108 ...

I have an Ariston CLAS HE boiler which is showing err108.

www.justanswer.com > Plumbing
Get a Professional Answer ... I have an Ariston CLAS HE boiler which is showingerr108. ... The error codes are on page 32. .... My oil boiler leaks a little. Is it a ...

Inside look of Ariston boiler error - Boiler service North ...

? 1:42
https://www.youtube.com/watch?v=dWonQltUnGI
May 14, 2012 - Uploaded by unicuk
The boiler is not firing up to give neither hot water nor heating. It tries to start ..you can hear the fan running and ...

Ariston Clas He Boiler Error 108 - saetechnologies.com

www.saetechnologies.com/ariston-clas-he-boiler-error-108/
Feb 28, 2015 - Search for - boiler, error, 108: Hi did you get to find out how to Fix ... Checked boiler (ARISTON CLAS HE 24) says error with code 108 ... Not sure if this is the best forum but I have a fault (F12) on my Glow Worm CXi30 boiler.

Dec 26, 2015 | Water Heaters

1 Answer

I have a Potterton Combi Puma 80e When I use the shower the pressure seems to drop and shower goes cold! except when the central heating is on shower works fine


Does the red status led in the centre of the control board come on when hot water is drawn? You need to remove ONLY the front decorative cover to see the control board, two fixing screws at the base of it. If not the boiler won't fire when the CH is off.
The trigger for this is a pressure switch, replacement of which is beyond DIY scope.
FYV

Feb 11, 2013 | Water Heaters

1 Answer

Ariston euro-combi boiler not giving hot water


odd noise like popping or singeing fire....clicking noises.....sounds like you have a water leak putting out the pilot.......or your thermo coupling is bad....or the noise is the tank full of calcium buildup and that will make noises when the burner is on

Jan 19, 2013 | Water Heaters

1 Answer

Combi Boiler gives CH but not HW


Combi boilers have many moving parts compared to conventional models so must be serviced annually to prevent breakdowns.

Your boiler most likely has one of four problems:-

1. When the receiver for the wireless thermostat was fitted, other wiring was loosened and has come adrift. It's a possibility, but in my experience unlikely as the wiring involved isn't anything to do with HW supply..

2. During receiver fitting the pcb suffered a static electricity surge. Possible, but unlikely as this sort of damage is usually immediately evident. However, boiler pcb's are notorious for sudden failures anyway and can happen anytime. Combi pcb's are more prone to fail as they usually have up to four solenoids fitted and these do eventually fail due to mechanical wear.

3. When you your combi is in CH mode it heats the primary water circuit and directs the flow through the CH heat exchanger. When you open a hot tap (US=faucet) you're opening a supply of cold water initially as there is no stored hot water like in a conventional system. As the water starts to flow through the combi's diverter valve there's a pressure drop which activates a rubber diaphragm with mechanical connections to other parts. The diaphragm is one part which is routinely replaced annually as it will eventually fatigue and fail with the symptoms which you describe. In addition, the mechanical parts connected to the diaphragm pass through various seals in order to activate at least one micro switch. If the seals fail then the moving parts eventually corrode and seize up. Regular servicing prevents this. Combi seizures are a very common complaint in hard water areas.

4. One of the micro switches activated by the diverter valve has failed. Possible, but not likely. The purpose of the switches is usually to fire up the boiler to provide HW when the CH is not currently running, but as you haven't said which Vaillant you have I can't be definitive on this.

One major problem with combi boilers is that multiple failures can and certainly do occur almost at once. Unmaintained units may appear to be correctly functioning but in reality a number of worn parts can be close to failing. When one part fails, the others can't cope with the stress and fail as well.

In most civilised countries including the UK it's a criminal offence to attempt most repairs yourself unless you're qualified to work on gas appliances, so you need to find a decent heating engineer to service your boiler (ask your new neighbours). In the UK you can expect to pay around £120-£150 annually for a routine boiler service. If the circuit board has failed then it can easily add over £100. If parts inside the diverter valve/manifold have seized then you can be looking at an additional £80-£150. Note that diaphragm failures on their own do not merit diverter/manifold replacement and that if you have a new diverter fitted then a new diaphragm will already be present inside.

Dishonest heating engineers always diagnose a failed pcb as they know that you have no way of knowing whether it's true. If you can live with the problem for a few days then failed pcb's are usually a straightforward repair and there are plenty of companies who will send you a guaranteed exchange unit for much less than the cost of a new one. As long as you are not opening the main boiler casing which houses the combustion chamber and gas valve assemblies then some territories allow non gas qualified replacement, but others insist that the work is done by a qualified electrician: this is not the case in the UK as long as the pcb is not connected directly to mains electricity (no modern domestic ones are).

Oct 13, 2009 | Water Heaters

1 Answer

Not continuous hot water and radiators


If it has a distance from the boiler to your use the water in the lines and the lines themselves ahve to warm up before you will get hot water, Let me know more if this dosnt help. Please rate me as high as possible if it does help you understand your trouble.

May 31, 2009 | RTO Ariston Gl4.0 Instantaneous Electronic...

1 Answer

Boiler problems


heres a copy of the serviceing manuel for the unit. just click on the link and download the manual. http://www.ariston.co.uk/uploads/doc482c2cada6e71.pdf good luck

Jan 11, 2009 | Water Heaters

1 Answer

Ariston Combi euro boiler SX20 MFFICE 970903039 GC No 4711602


have you tried to put some cleaner into the system it siounds like you may have a circulation problem

Nov 27, 2008 | Water Heaters

Not finding what you are looking for?
Water Heaters Logo

Related Topics:

4,091 people viewed this question

Ask a Question

Usually answered in minutes!

Top Water Heaters Experts

Steven Foerst
Steven Foerst

Level 1 Expert

52 Answers

Mike Cairns
Mike Cairns

Level 3 Expert

3053 Answers

Brad Brown

Level 3 Expert

13536 Answers

Are you a Water Heater Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...