Ariston Genus Stove Error 501 Flame Failure Despite New Parts and Service Checks

Hello, at the beginning I would like to write that I am not a specialist, I am writing on the forum because the service center has not been able to repair the stove for 3 weeks. Maybe someone had a similar problem. I have a problem with the Ariston Genus stove, after a normal inspection by the service technician, error 501 flame failure occurred, and since then the service center has not been able to repair the fault (the stove is under warranty). The motherboard, solenoid valves, the small box with the cables that make the spark come from have already been replaced, and the fan responsible for feeding the gas-air mixture has also been replaced, so practically the entire stove inside is new and the error is still the same. The gas pressure is good, the chimney is fine, the error persists even after unplugging the controller inside the room and setting the stove to automatically heat water in the radiators at 40 degrees. The service no longer knows what the reason is. Sometimes a reset helps, and when even the reset didn`t help, Ariston`s service replaced another thing and nothing. All possible measurements were made of exhaust gases, gas pressure, the stove was dismantled and nothing was still the same. I will add that sometimes the firing is loud, i.e. too loud, because then the casing will shake. Please help.

For example, a spark may jump from the ignition cable to the housing. Put on an additional shirt, replace the ignition electrode and possibly also the burner.

Hello, the service center stated that these activities had already been carried out earlier, an additional T-shirt was put on, but it also did not help, today the left electrode was replaced, plus a voltage stabilizer was added to which the stove was connected, so far it works like new (but it was always like that after the visit website) and you need to observe

Added after 4 [hours] 46 [minutes]:

After a few hours, exactly the same error with the difference that after the first attempt there is a loss of flame, it starts on the second attempt and it burns and heats up, after each break and post-circulation the first attempt to start the error - flame loss, the second one - it starts and works, but the error is still only the boiler it seems more stable... because it doesn`t need a reset button.

If it is a condensing boiler (because only the Genus has two electrodes separately), it requires good regulation using an exhaust gas analyzer, and above all, the combustion air intake should be checked (the boiler is probably sucking in exhaust gases). A chimney leak may cause this symptom.

Krzysiek8102 dnia 31 Gru 2014 21:35 wrote:

I am writing on the forum because the service center has not been able to repair the stove for 3 weeks.
I will add that sometimes the firing is loud, i.e. too loud, because then the housing shakes

HERE check what type of boiler you have and let us know. Detonation firing is harmful. What you are describing here looks like left exhaust gases in the intake or floating ionization current. Either way, start with the exact name/type of boiler.

I can`t even list all the devices that the service technicians had with them, I guess everything was already set and regulated (the left electrode was also replaced and the stove was adjusted again - it works fine for an hour or two, then the same thing) and the flame still disappears, the stove it can work perfectly all night long and suddenly, without any intervention, the flame simply disappears, the stove is Ariston Genus Premium (I can`t find it on Ariston`s website), it is also characteristic that it starts up with a bang and then disappears in a moment and the stove lights up fine and no one nothing moves, I will add that the chimney was dismantled by service technicians and reassembled according to the book, just like the furnace was disassembled and reassembled - still the same error, apart from the water pump and the burner and the gas supply pipes in the furnace, everything has been changed and still the same error, usually the stove works as long as it works and if we want to lower the room temperature or if it has a longer break, it will not start unless accidentally after the 5th, 6th or 8th reset...
Can the cause be found in the gas, i.e. composition or quality? because the pressure was measured and is normal. but the furnace had been working without a single failure for 2.5 years and suddenly something happened to the gas just after the service technician`s inspection? unlikely, best regards

Hello,

I`m struggling with exactly the same problem. When starting it, it roars or ignites quietly, but it does not maintain the flame and after 3 errors the error code 501 appears. The chimney is tight, the hob is OK, and the stove does not work when it was not working. I`m starting to doubt the expertise of the Ariston people. Besides, after it warms up, the stove doesn`t want to start and you have to wait a long time before something clicks, and even that doesn`t always happen... I don`t have the strength to do it anymore It`s cold outside, no water or heat... Maybe someone has a recommendation from Świdnica (Lower Silesia) or the surrounding area.

If I find a solution, I will write it here on the forum, for now I am going to the consumer ombudsman, because, honestly, it`s been going on for almost a month (and as you can see, it`s winter) because despite the good intentions of the service, the effect is that I keep checking the stove to see if it`s working because I know that when I turn the temperature knob, it doesn`t turn on anymore....

Such symptoms are also caused by a loose gas burner.
Then there is no good mass on the burner and the ionization electrode does not detect the flame.
This was a problem with some burners.
To determine this, you need to remove the entire burner from the combustion chamber and simply check whether it is loose.
If so, replace the burner gasket and the problem will be solved.

serwis25 wrote:

Such symptoms are also caused by a loose gas burner.
Then there is no good mass on the burner... If there is, you need to replace the burner gasket and the problem will be solved.

Does the gasket "make" the mass?

mirrzo wrote:

serwis25 wrote:

Such symptoms are also caused by a loose gas burner.
Then there is no good mass on the burner... If there is, you need to replace the burner gasket and the problem will be solved.

Does the gasket "make" the mass?

It does not create mass, it only presses the burner to the mass. Moreover, the set with the new gasket also includes a special metal clamp to improve the galvanic connection of the burner with the mass.
I would expect such questions from various people on the forum, but never from you.
"If the gasket is metal, there is a high probability of improving the weight"[/quote]

What the claim, what question arises from it.
The gasket has a different task, and the mass can be handled differently. Many manufacturers use a green-yellow wire, but I have also seen other color markings.

serwis25 wrote:

... special metal clamp ...

it should also work.
As a boiler service technician, you should be more clear in diagnosing and describing the solution to the problem.

Thank you for all the suggestions, unfortunately I am not a service technician myself, when the Ariston guys come, I will inform them about replacing the burner or the gasket, because in fact, apart from that, everything in the furnace has already been replaced with new ones ;-/ I will add that the furnace has been running for over 24 hours, but after circulation the water always turns on the second time, the first one always fails, every time, and within 24 hours one reset was necessary because it didn`t start at all, and after the reset also the second time. Regards

Added after 3 [hours] 39 [minutes]:

The service has ruled out the idea of a gasket under the burner, this is not the model, the gasket as you advised is in the evo model, I have the Genus Premium, there will be another service in two days and we will see,

Krzysiek8102 dnia 05 Sty 2015 13:42 wrote:

I have genus premium

is this what he looks like?

The 501 problem was solved by someone on a well-known auction website and offers to fix this error.
This does not change the fact that these burners have problems with conduction, i.e. with the burner grounding. Especially if the "service technician" disassembles it and reassembles it incorrectly.

Unfortunately, the shape of what feeds the gas to the burner is different, there is a different air inlet and the entire bottom is different, but how to find where it is incorrectly assembled, anyway, as I wrote, the service will be there again in two days and they will decide, I will let you know what How.

Krzysiek8102 dnia 05 Sty 2015 18:27 wrote:

how to find where

Hello,
Today, following the advice of one of the forum users, I checked whether closing the air intake (the one inside the stove itself) would be better, and it is indeed the case. If you cover the air pipe, it works better and you don`t have to restart the furnace several times. So where can the fault lie?

Hello, the gentlemen from the service center also noticed this, even for some time he walked without the plastic casing and the sponge through which he sucks the air, it was better but for a while, in my case the final diagnosis is the recommended replacement of the reducer in the gas box, i.e. the entire meter, because the set of membranes the reducer is probably faulty and causes huge gas pressure spikes, which the boiler cannot cope with (measured by the service and confirmed in writing). The stove starts, but always the second time, first there is an error, so tomorrow a trip to the gasworks, about the reducer. Regards

Hello,

For me, cleaning the ionization electrode helped for 2 days. After 2 days, the electrode looks exactly the same and the stove starts to start worse. I will clean it again and see if it will last two days again. If that doesn`t help, I will replace it.

Nothing helps for me, it helped, as I wrote, adjusting the membranes at the reducer in the gas box, the stove runs stably, although it does not always turn on the first time, but it runs on its own without a reset, now the problem is that the gas consumption is twice as high as before the failure, although apparently it is perfectly set, on Monday the electronics will be replaced once again, my hands are falling apart, if you find a solution, please let me know, best regards

Unfortunately, my furnace "refused" to work again today. I took out the ionizing electrode again and cleaned it and it works, but it will probably happen again tomorrow. Since my stove is out of warranty, I don`t see any point in pouring money into it and replacing it...

Mine is still under warranty, so I`m fighting for it, but next season I will install a free-standing stove or a fireplace (depends on funds). with a water jacket, i.e. hot water for the radiators and a hot water tank, the gas furnace will only serve the tank, i.e. hot water, in the summer, there must be an emergency because all this electronics is a Czech film, even for the service in a case like this, and like it`s winter, it`s a chapel.....

Krzysiek8102 wrote:

Nothing helps for me, it helped, as I wrote, adjusting the diaphragms at the reducer in the gas box, the stove runs stably, although it does not always turn on the first time, but it runs on its own without a reset, now the problem is that the gas consumption is twice as high as before the failure, although apparently it is perfectly set, on Monday the electronics will be replaced once again, my hands are falling apart, if you find a solution, please let me know, best regards

Buddy, if it is properly adjusted, paste the printout from the analyzer, we will know something.
Regards

Today, out of desperation, I partially covered the air intake (about halfway) and the stove is still working and, above all, much quieter. After cleaning the ionization electrode, I solved the problem of bang ignition. Now we`ll see. If this does not help and does not stabilize the operation of the furnace, the only option left is to replace it, because investing money in this circus is no longer fun for me, and listening to service centers who want to replace the motherboard and other elements without a guarantee that it will work is comical.

PS. I`m starting to wonder if it`s related to the gas mixture supplied to the house, because the problems started in the winter and maybe this is also the reason why this type of furnace doesn`t handle it well. What is also interesting, the problem increases when there is a very strong wind outside, but the exhaust gas analysis shows that all parameters are ok.

Unfortunately, today I have an entertainment monster again... I`m out of ideas... to start replacing everything one by one is paranoia... Ariston`s service technician insists on the motherboard, but he doesn`t guarantee that it`s the one... another website says that this stove is one big piece of crap...

zefirekwroc wrote:

Unfortunately, today I have an entertainment monster again... I`m out of ideas... to start replacing everything one by one is paranoia... Ariston`s service technician insists on the motherboard, but he doesn`t guarantee that it`s the one... another website says that this stove is one big piece of crap...

You wrote earlier that the disc was replaced with a new one.
I asked for a real printout from the exhaust gas analyzer for minimum and maximum power.
If you are going to change the boiler, definitely do not buy one that is serviced by a person who expresses the opinion that a decent boiler is... worth it.
His skills are probably worth that much.
If skills and knowledge run out, of course the blame is placed on the devices.
If you can, post a photo of your boiler, but so that the gas valve is visible.
Regards

My disc was not listed. Tomorrow I will scan the printout from the analyzer and take a photo.

I`m not a service technician to judge whether someone knows something or not, but the fact is that everyone throws up their hands and suggests trial and error.

What puzzles me the most is that there are times when the stove works very well, and sometimes it doesn`t go away even after 5 resets. It doesn`t matter whether it is cold or hot. He does it as he wants.

Hello, lately my stove has been exactly the same, it fires when it wants, but I noticed that it doesn`t turn on sometimes, and after a dozen or so resets, I get the message "too many resets", and when I go to the gas box and move it, as if I wrote this, The furnace starts up with the little pot hidden under the red cap and I can turn it on and off as much as I want and it works, but after a long break it doesn`t move anymore, so maybe it`s the reducer after all? Tomorrow I`m going to the gas company again to replace the reducer, if anything changes, I`ll let you know, best regards

What you wrote now, my friend, is the protection of the gas pressure reducer - the "dzyndzel" under the red cap.

Great, if you figure something out, let me know, because honestly, my stove`s "humors" are shocking... it was working fine since yesterday. This evening, it turned on the water for the second time and now it`s working... probably until the morning