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  • Ariston Boiler Error and Fault Codes

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    • Ariston Boiler Error and Fault Codes

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  • Ariston Boiler Error and Fault Codes

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    • Blog
    • Ariston Boiler Error and Fault Codes

    Updated: February 20, 2024

    Ariston is part of the Ariston Thermo Group. They have been in business for over 90 years. The brand was founded by an Italian industrial pioneer, Aristide Merloni. According to the company, they brand themselves as ‘global leaders in heating comfort and energy efficiency’. However, like any appliance and at some point or another, they can encounter some issues and experience breakdowns. On this blog, we will look at Ariston Boiler Error and Fault Codes.

    Ariston has a wide range of combi, system and regular boilers. Their combi range has a power output of 24 – 38kW, which will be suitable for a small flat or a large house, depending on the power output you choose. As for their system boilers, they have a power output of 18 – 30kW. And finally, their regular boilers come in 24kW.

    The error codes that we provide on this blog would help you identify what problems you are facing with your Ariston boiler. This can make it easier for you to fix if it is possible. However, if the problem is internal, then calling a Gas Safe Engineer is highly recommended.

    What are boiler fault codes?

    Boiler fault codes are alphanumeric or numeric indicators displayed by a boiler’s control panel to communicate specific issues or malfunctions within the heating system. These codes help both homeowners and service technicians identify and diagnose problems quickly, facilitating efficient troubleshooting and repairs. Each code corresponds to a particular fault or condition, allowing users to understand the nature of the issue without needing to open the boiler or delve into complex technical details.

    Ariston Boiler Error And Fault Codes
    Ariston Boiler Error And Fault Codes 4

    Read about: Combi boilers common faults  

    Potterton Boiler Error Codes / Fault Codes

    Ariston Boiler Error and Fault Codes

    Error CodeModelPossible Cause
    Central Heating Circuit Issues
    101All BoilersOverheat
    102E-Combi Evo E-System Evo Clas He Evo (Combi and system)Pressure sensor error
    103All BoilersInsufficient circulation
    104All BoilersInsufficient circulation
    105All BoilersInsufficient circulation
    106All BoilersInsufficient circulation
    107All BoilersInsufficient circulation
    108All Combi BoilersInsufficient water (request filling)
    109Clas net one / Clas one Combi Clas system oneSystem pressure greater than 3 bar
    110All BoilersCentral heating Flow temperature probe circuit open/short circuit
    112All BoilersCentral heating Flow temperature probe circuit open/short circuit
    114All BoilersExternal sensor circuit open/short circuit
    116All Combi and System BoilersFloor thermostat contact open
    118All BoilersHeating delivery probe problem
    1p1All BoilersInsufficient circulation indication
    1p2All BoilersInsufficient circulation indication
    1p3All BoilersInsufficient circulation indication
    1p4Clas Net one Combi Clas one Combi Clas System oneInsufficient circulation indication
    Error CodeModelPossible Cause
    Hot Water Circuit Issues
    202Clas HE evo Clas he evo system E-combi evo E-system evo2 bottom storage temperature probe open/short circuit
    204Clas HE evo Clas he evo system E-combi evo E-system evoSolar collector temperature probe open/short circuit
    205E-combi one E-System one Clas Net one Combi Clas one CombiDomestic hot water in probe open circuit
    207Clas HE evo Clas he evo system E-combi evo E-system evoSolar collector overheating
    208Clas HE evo Clas he evo system E-combi evo E-system evoCollector frost protection temperature
    Error CodeModelPossible Cause
    Internal Printed Circuit Board (PCB) Issues
    301All BoilersEEPROM error
    302All BoilersCommunication error
    303All BoilersMain printed circuit board (PCB) error
    304All BoilersToo many resets (> 5) in 15 minutes
    305All BoilersMain printed circuit board (PCB) error
    306All BoilersMain printed circuit board (PCB) error
    307All BoilersMain printed circuit board (PCB) error
    3p9E-combi one E-System one Clas Net one Combi Clas one Combi Clas System oneSchedule service
    External Printed Circuit Board (PCB) Issues
    407Clas HE evo Clas he evo system E-combi evo E-system evo7 Room sensor circuit open/short circuit
    Error CodeModelPossible Cause
    Ignition & Detection Issues
    501All BoilersNo flame detected
    502All BoilersFlame detected with gas valve closed
    504All BoilersFlame lift
    5p1All Boilers1st ignition failed
    5p3All Boilers2nd ignition failed
    5p4All BoilersFlame cut-off
    Error CodeModelPossible Cause
    Air Inlet / Flue / Gas Outlet Issues
    604CLAS HE R E-Combi Evo E-System EVO Clas HE evo Combi Clas HE evo SystemInsufficient fan speed
    610All BoilersThermofuse open
    612Clas HE Evo Combi Clas He Evo System E-Combi Evo E-system Evo Clas net one combi Clas one combi Clas system oneFan speed has incorrect measurement
    Error CodeModelPossible Cause
    Multi-Zone Heating Issues
    701E-Combi Evo E-System EVO Clas HE evo combi Clas he evo systemZone 2 outgoing sensor defective
    702E-Combi Evo E-System EVO Clas HE evo combi Clas he evo systemZone 2 return sensor defective
    703E-Combi Evo E-System EVO Clas HE evo combi Clas he evo systemZone 3 outgoing sensor defective
    704E-Combi Evo E-System EVO Clas HE evo combi Clas he evo systemZone 3 return sensor defective
    705E-Combi Evo E-System EVO Clas HE evo combi Clas he evo systemHydraulic separation sensor defective
    706E-Combi Evo E-System EVO Clas HE evo combi Clas he evo systemZone 2 overheating
    707E-Combi Evo E-System EVO Clas HE evo combi Clas he evo systemZone 3 overheating

    However, in some cases, getting a new boiler might be more cost-effective than getting your old boiler fixed. Some issues might be costly to fix. What is more, a new boiler will probably be more efficient and can help you save both money and energy. That is why getting a new boiler is a good investment in the long run.

    Get a quote from Let’s Heat. We have a large range of products and our staff of Gas Safe engineers provides an excellent service that is both professional and reliable. In addition, we can help you get the boiler that best fits your house and heat requirements.

    Read more:

    Intergas Boiler Error Codes / Fault Codes 2023

    Biasi Boiler Error Codes / Fault Codes 

    Zanussi Boiler Error Codes & Fault Codes

    Ariston Boiler Error And Fault Codes
    Ariston Boiler Error And Fault Codes 5

    Why choose smartadapt?

    We’re Punctual

    We always aim for simplicity and quality of work. Using the latest and the beat management system to schedule jobs and confirm appointments, send reminders and issue certificates and send bills. We offer next-day installations and emergency services as well. We’re very quick to respond to your call and will be at your doorstep in no time.

    We Care

    Establishing a good relationship with our customers is our priority. We always take the time to understand what your heating requirements are. We do our best so as not to create any sort of disruption to your home or make so much noise.

    Experienced Staff

    Our experience in the heating business has paved the way for us to expand further and provide our services nationwide. We’re very committed to our work. Our engineers are helpful and informative. They are highly skilled and have a wide knowledge of their trade. Our services include: boiler installation, maintenance, repair and boiler service plan. We work with all types of boilers: heat only boilers, system boilers and combi boilers. We install heat pumps and central heating systems. And we also provide plumbing services and much more.

    Read more about: Navien Boiler Error Codes / Fault Codes

    Alpha Boiler Fault Codes / Error Codes List

    FAQs

    Why is my Ariston boiler heating not working?

    There are various reasons why your Ariston boiler might fail to ignite. These can include:
    faulty ignition leads
    blocked burner
    broken diaphragms or airlocks
    problem with the spark generator
    low gas pressure
    no or little gas supply
    debris in the pilot jet

    How to fix ignition failure on an Ariston boiler

    Before contacting a heating engineer, you first can check the boiler pressure to see whether it isn’t too low or too high. Otherwise, having a Gas Safe engineer take a loot at it is the best course of action.

    How to fix an Ariston faulty fan?

    First of all, you should never attempt to fix the issue yourself. This is a problem that requires the expertise of a Gas Safe engineer. The heating engineer would first check that the fan is getting the needed power, by looking at the voltmeter. If it is, then it’s very likely that a replacement fan will need to be fitted.

    Read more about:

    Vokèra Boiler Fault Codes / Error Codes List

    Ravenheat Boilers Error Codes / Fault Codes List

    Ferroli Boiler Error Codes / Fault codes List