Ariston Classic 12Pro device hub
Use this device hub to troubleshoot Ariston Classic 12Pro for this water heater. Start with the common codes and symptom themes, use the shared support context if you need manuals or official help, and jump into the exact error page only when the code matches. This model currently has 13 distinct codes across 13 published fix pages.
Try E2, temperature, or won’t start.
Open the highest-signal error pages for this device first when you already know the code family.
Let the published patterns narrow you into the right branch before you open parts or call support.
Use the full code directory when the display is clear and you want the exact route fast.
Most common error codes
Start here when you want the shortest path from this device hub to the exact troubleshooting page.
Ariston Classic 12Pro error code 61/62 means internal malfunction of the circuit board related to NFC communic
Ariston Classic 12Pro error code 60 means wi-Fi communication failure (models with the interface shown in Fig.
Ariston Classic 12Pro error code 25 means overheating caused by lack of water at boiler inlet. This guide expl
Ariston Classic 12Pro error code 24 means failure to heat water with powered heating element at boiler inlet.
Ariston Classic 12Pro error code 22 means general excessive water temperature (circuit board fault) at boiler
Ariston Classic 12Pro error code 21 means excessive water temperature detected by single sensor at boiler inle
Ariston Classic 12Pro error code 20 means broken temperature probes (open or short-circuited) at boiler inlet.
Ariston Classic 12Pro error code 15 means overheating caused by lack of water at boiler outlet. This guide exp
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Use the exact error page when you know the code. Otherwise stay in this device hub to compare the most likely routes first, then branch into the fix that matches the symptom.
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Common troubleshooting themes
These patterns are derived from the currently published fixes for this model and help you pick the right route faster.
Recently updated fixes
Fresh pages first — useful when you’re troubleshooting right now.
Ariston Classic 12Pro Error Code 61/62
Ariston Classic 12Pro error code 61/62 means internal malfunction of the circuit board related to NFC communication or NFC data. This guide explains the likely causes, the safest first chec…
Ariston Classic 12Pro Error Code 60
Ariston Classic 12Pro error code 60 means wi-Fi communication failure (models with the interface shown in Fig. This guide explains the likely causes, the safest first checks, and when suppo…
Ariston Classic 12Pro Error Code 25
Ariston Classic 12Pro error code 25 means overheating caused by lack of water at boiler inlet. This guide explains the likely causes, the safest first checks, and when support or service is…
Ariston Classic 12Pro Error Code 24
Ariston Classic 12Pro error code 24 means failure to heat water with powered heating element at boiler inlet. This guide explains the likely causes, the safest first checks, and when suppor…
Ariston Classic 12Pro Error Code 22
Ariston Classic 12Pro error code 22 means general excessive water temperature (circuit board fault) at boiler inlet. This guide explains the likely causes, the safest first checks, and when…
Ariston Classic 12Pro Error Code 21
Ariston Classic 12Pro error code 21 means excessive water temperature detected by single sensor at boiler inlet. This guide explains the likely causes, the safest first checks, and when sup…
Ariston Classic 12Pro Error Code 20
Ariston Classic 12Pro error code 20 means broken temperature probes (open or short-circuited) at boiler inlet. This guide explains the likely causes, the safest first checks, and when suppo…
Ariston Classic 12Pro Error Code 15
Ariston Classic 12Pro error code 15 means overheating caused by lack of water at boiler outlet. This guide explains the likely causes, the safest first checks, and when support or service i…
All error codes
Pick your code to open the fix page.
All fixes for this model
One card per code. If a code has multiple variants, the card opens the filtered results list.
Ariston Classic 12Pro Error Code 61/62
Ariston Classic 12Pro error code 61/62 means internal malfunction of the circuit board related to NFC communication or NFC data. This guide explains the likely causes, the safest first chec…
Ariston Classic 12Pro Error Code 60
Ariston Classic 12Pro error code 60 means wi-Fi communication failure (models with the interface shown in Fig. This guide explains the likely causes, the safest first checks, and when suppo…
Ariston Classic 12Pro Error Code 25
Ariston Classic 12Pro error code 25 means overheating caused by lack of water at boiler inlet. This guide explains the likely causes, the safest first checks, and when support or service is…
Ariston Classic 12Pro Error Code 24
Ariston Classic 12Pro error code 24 means failure to heat water with powered heating element at boiler inlet. This guide explains the likely causes, the safest first checks, and when suppor…
Ariston Classic 12Pro Error Code 22
Ariston Classic 12Pro error code 22 means general excessive water temperature (circuit board fault) at boiler inlet. This guide explains the likely causes, the safest first checks, and when…
Ariston Classic 12Pro Error Code 21
Ariston Classic 12Pro error code 21 means excessive water temperature detected by single sensor at boiler inlet. This guide explains the likely causes, the safest first checks, and when sup…
Ariston Classic 12Pro Error Code 20
Ariston Classic 12Pro error code 20 means broken temperature probes (open or short-circuited) at boiler inlet. This guide explains the likely causes, the safest first checks, and when suppo…
Ariston Classic 12Pro Error Code 15
Ariston Classic 12Pro error code 15 means overheating caused by lack of water at boiler outlet. This guide explains the likely causes, the safest first checks, and when support or service i…
Ariston Classic 12Pro Error Code 14
Ariston Classic 12Pro error code 14 means failure to heat water with powered heating element at boiler outlet. This guide explains the likely causes, the safest first checks, and when suppo…
Ariston Classic 12Pro Error Code 12
Ariston Classic 12Pro error code 12 means general excessive water temperature (circuit board fault) at boiler outlet. This guide explains the likely causes, the safest first checks, and whe…
Ariston Classic 12Pro Error Code 11
Ariston Classic 12Pro error code 11 means excessive water temperature detected by single sensor at boiler outlet. This guide explains the likely causes, the safest first checks, and when su…
Ariston Classic 12Pro Error Code 10
Ariston Classic 12Pro error code 10 means broken temperature probes (open or short-circuited) at boiler outlet. This guide explains the likely causes, the safest first checks, and when supp…
Ariston Classic 12Pro Error Code 01
Ariston Classic 12Pro error code 01 means internal malfunction of the circuit board. This guide explains the likely causes, the safest first checks, and when support or service is the bette…
About this device hub
If your device shows an error code, start with the matching fix page. When a code returns repeatedly, it often points to an underlying cause (temperature, power delivery, sensors, locks, or wear).
Always follow basic safety: unplug before opening anything, and stop if you smell burning or see damage.