Ariston Pressure Switch 995903 Microcombi/Microgenus/Microsystem New

Description

Ariston Pressure Switch MPN 995903 – Brand New

This Ariston low water pressure switch protects your boiler by detecting airflow levels before ignition. The boiler air pressure sensor ensures safe operation by preventing startup if pressure is too low or too high. The official part number 995903 fits a wide range of Ariston and Microgenus boilers and supports efficient system performance.

Compatible Boilers

To help you find the correct fit, this part is compatible with the following models:

Ariston ACO Series:

• ACO 35 HP MFFI (GC No. 47-116-36)

Ariston Challenger Series:

• Challenger 80E (GC No. 47-116-05)

Ariston DIA Series:

• DIA 20 MFFI CE Edition 1 (GC No. 47-116-03)

• DIA 20 MFFI CE Edition 2 (GC No. 47-116-03A)

• DIA 24 MFFI CE Edition 1 (GC No. 47-116-04)

• DIA 24 MFFI CE Edition 2 (GC No. 47-116-04A)

• DIA System 27 RFFI (GC No. 41-116-02)

Ariston Eco Series:

• Eco Combi 27 MFFI (GC No. 47-116-23)

• Eco System 27 RFFI (GC No. 41-116-08)

Ariston Excalibur Series:

• Excalibur 80 (GC No. 47-116-30)

• Excalibur 100 (GC No. 47-116-31)

Ariston Genus Series:

• Genus 27 BFFI Plus Editions 1–4 (GC No. 47-116-11, 11 Edition 2, 3, 4)

• Genus 27 BFFI UK Editions 1 & 3 (GC No. 47-116-11C, 11D)

Ariston Intesa Series:

• Intesa 23 MFFI (GC No. 47-116-32)

• Intesa 30 MFFI (GC No. 47-116-33)

Ariston Microcombi Series:

• Microcombi 23 MFFI Editions 1–4 (GC No. 47-116-16 and editions)

• Microcombi 27 MFFI Edition 1 Rev 1 (GC No. 47-116-24 ED 1)

Ariston Microgenus Series:

• Microgenus 11 24, 28, 31 MFFI + Editions 3 (GC No. 47-116-25–27 and editions)

• Microgenus HE 24, 28, 32 MFFI (GC No. 47-116-37–39)

Ariston Microsystem Series:

• Microsystem 10, 15, 21, 28 RFFI Editions 1–3 (GC No. 41-116-04 to 41-116-07 and editions)

Ariston SX Series:

• SX 20 MFFI CE Editions 1 & 2 (GC No. 47-116-02, 02A)

Why Choose This Product?

The 995903 Ariston pressure switch helps keep your boiler safe and efficient. It detects air pressure levels and stops operation if unsafe conditions occur. This avoids damage and ensures legal compliance. Built to OEM standards, it offers precise compatibility and consistent performance. For hassle-free installation and peace of mind, this pressure switch is a must-have replacement.

Delivery and Return 

Order before 2 PM for same-day dispatch. Choose standard or next-working-day delivery at checkout. Returns are accepted within 14 days if items are unused and in original packaging.

Remember: Always use a Gas Safe registered engineer for boiler part installation.