Description
Ariston 998643 Auto Air Vent – Microcombi/Microsystem/Microgenus
Ariston replacement part with manufacturer part number 998643. This exact item is a genuine, brand-new Ariston product. It is intended for the compatible appliances shown below, where listed. Match the boiler model and MPN before ordering.
Product Details
Brand: Ariston
Manufacturer part number (MPN): 998643
Condition: Genuine brand new
Boiler Compatibility
Check the exact appliance model and manufacturer part number before ordering. See the GC Number tab for the verified GC references.
This part fits the following 16 appliances:
Listed compatible appliances
- Ariston EXCALIBUR 100
- Ariston EXCALIBUR 80
- Ariston MICROCOMBI 23 MFFI from serial
- Ariston MICROCOMBI 27 MFFI from serial
- Ariston MICROGENUS 23 MFFI
- Ariston MICROGENUS 23 MFFI from seria
- Ariston MICROGENUS 27 MFF1
- Ariston MICROGENUS 27 MFFI from seria
- Ariston MICROSYSTEM 10 RFFI
- Ariston MICROSYSTEM 10 RFFI from seria
- Ariston MICROSYSTEM 15 RFF1
- Ariston MICROSYSTEM 15 RFFI from seria
- Ariston MICROSYSTEM 21 RFFI
- Ariston MICROSYSTEM 21 RFFI SYSTEM NG
- Ariston MICROSYSTEM 28 RFFI
- Ariston MICROSYSTEM 28 RFFI SYSTEM NG
Ordering and support
Before you order
Use the manufacturer part number as your main check. Do not rely on a similar-looking part. Compare the appliance model and the GC Number tab before ordering.
Technical FAQs
How do I check that this is the correct replacement part?
Use manufacturer part number 998643 as the main check. Match it to the old part or appliance documentation, not only to a similar-looking product.
Will this part fit my boiler?
This exact part is listed for 16 appliance model(s). Check your appliance model, MPN and the GC Number tab before ordering.
Can a similar-looking part be used instead?
Do not rely on shape or appearance alone. Check the manufacturer part number and the exact appliance model before ordering a replacement.
Does the part number identify the cause of a boiler fault?
No. A part number helps identify a replacement item but does not diagnose a fault. Ask a suitably qualified professional to identify the cause where required.
Who should fit and test this part?
Installation and testing should be completed by a suitably qualified professional where required. This exact item is a genuine, brand-new Ariston product.
Related Ariston parts
Browse related Ariston boiler parts and Ariston Boiler Accessories.
Help and returns
For help checking this part, message us on WhatsApp. This item includes a 12-month warranty. Returns are subject to the 30-day returns policy.
Product check
Clear identification matters. Check the manufacturer part number before you order.
Installation and testing should be completed by a suitably qualified professional where required.








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