Ariston Main Circuit Flow Switch Kit with Micro 65100519

Description

The Ariston main circuit flow switch kit 65100519 is a brand-new genuine replacement component for selected Ariston Microgenus, Genus, Eurocombi and DIA System boilers. It is supplied with a 12-month warranty and should only be ordered after confirming the full appliance model, GC number, edition and applicable serial-number range.

The flow switch acts as a safety device within the boiler pipework. When the pump operates, its built-in sensor detects water movement and sends this information to the electronic control, allowing the ignition sequence to progress. Its purpose is to help prevent the burner from operating when the system is dry or has insufficient water flow. Installation should be completed by a suitably qualified Gas Safe registered engineer.

Product details

Brand: Ariston
Part type: Main circuit flow switch kit with micro
MPN: 65100519
Condition: New
EAN / GTIN: 5411692477639
Warranty: 12 months

Boiler compatibility

Ariston DIA System

DIA System 27 RFFI – GC No. 41-116-02

Ariston Eurocombi

Eurocombi A23 MFFI Edition 1 – GC No. 47-116-10
Eurocombi A23 MFFI Edition 2 – GC No. 47-116-10A
Eurocombi A23 MFFI UK Edition 3 – GC No. 47-116-18
Eurocombi A27 MFFI Edition 1 – GC No. 47-116-12
Eurocombi A27 MFFI Edition 2 – GC No. 47-116-12A
Eurocombi A27 MFFI UK Edition 3 – GC No. 47-116-19

Ariston Genus 23 MFFI

Genus 23 MFFI UK Edition 1 – GC No. 47-116-08
Genus 23 MFFI UK Edition 2 – GC No. 47-116-08A
Genus 23 MFFI UK Edition 3 – GC No. 47-116-08B

Ariston Genus 27 BFFI Plus

Genus 27 BFFI Plus Edition 1 – GC No. 47-116-11
Genus 27 BFFI Plus Edition 2 – GC No. 47-116-11 EDITION 2
Genus 27 BFFI Plus Edition 3 – GC No. 47-116-11 EDITION 3
Genus 27 BFFI Plus Edition 4 – GC No. 47-116-11 EDITION 4

Ariston Genus 27 BFFI

Genus 27 BFFI UK Edition 1 – GC No. 47-116-11C
Genus 27 BFFI UK Edition 3 – GC No. 47-116-11D

Ariston Genus 27 MFFI

Genus 27 MFFI UK Edition 1, Serial No. To 983610060 – GC No. 47-116-09
Genus 27 MFFI UK Edition 2, Serial No. From 231983610060 To 2320004900093 – GC No. 47-116-09A
Genus 27 MFFI UK Edition 3, Serial No. 2320004900093 To – – GC No. 47-116-09B

Ariston Genus 27 RFFI System

Genus 27 RFFI System Edition 1, Serial No. To 983610070 – GC No. 41-116-01
Genus 27 RFFI System Edition 2, Serial No. 983610070 – GC No. 41-116-01A
Genus 27 RFFI System Edition 3, Serial No. From 2320007700003 – – GC No. 41-116-01B

Ariston Genus 30 MFFI

Genus 30 MFFI UK Edition 1 – GC No. 47-116-13
Genus 30 MFFI UK Edition 2 – GC No. 47-116-20

Ariston Microgenus 23 MFFI

Microgenus 23 MFFI Edition 1 (To Serial No. 2320005600001) – GC No. 47-116-14
Microgenus 23 MFFI Edition 2 (From Serial No. 2320005600001 To 2320021400002) – GC No. 47-116-14 ED 2
Microgenus 23 MFFI Edition 3 (From Serial No. 2320021400002 To 2320219000001) – GC No. 47-116-14 ED 3
Microgenus 23 MFFI Edition 4 (From Serial No. 2320219000001 To 2320409200001) – GC No. 47-116-14 ED 4
Microgenus 23 MFFI Edition 5 (From Serial No. 2320409200001) – GC No. 47-116-14 ED 5

Ariston Microgenus 27 MFFI

Microgenus 27 MFFI Edition 1 (To Serial No. 2320005600001) – GC No. 47-116-15
Microgenus 27 MFFI Edition 2 (From Serial No. 2320005600001 To 2320021400002) – GC No. 47-116-15 ED 2
Microgenus 27 MFFI Edition 3 (From Serial No. 2320021400002 To 2320219000001) – GC No. 47-116-15 ED 3
Microgenus 27 MFFI Edition 4 (From Serial No. 2320219000001 To 2320409200001) – GC No. 47-116-15 ED 4
Microgenus 27 MFFI Edition 5 (From Serial No. 2320409200001) – GC No. 47-116-15 ED 5

Delivery & Collection

Collection is available from our Newcastle showroom at Unit 5, Penn Street, Newcastle upon Tyne, NE4 7BG, usually on the same day, subject to stock availability. If the item is not in stock, collection is normally available the next working day. We also offer fast UK delivery through Royal Mail First Class or DPD Next Day, with most orders arriving within one to two working days. Boiler components should be installed by a suitably qualified Gas Safe registered engineer.

Warranty

This brand-new genuine Ariston boiler main circuit flow switch kit is supplied with a 12-month warranty. Warranty claims may be subject to inspection and confirmation that the component was correctly selected and professionally installed.

Returns

We accept returns within 30 days of delivery. The product must be unused, unfitted and returned in its original unopened packaging with all seals intact. We cannot accept returns for components that have been fitted, used, damaged or returned in an unsuitable condition. Please check the boiler model, GC number, edition, serial-number range and part number carefully before ordering.

If you need any help, our team is happy to assist. Please contact us by phone or WhatsApp chat.

Frequently asked questions

Does Ariston flow switch kit 65100519 fit Microgenus boilers?

Yes. This flow switch kit is confirmed for the listed Microgenus 23 MFFI and Microgenus 27 MFFI boilers across Editions 1 to 5. The serial-number range and GC number must be checked because different editions of the same boiler model may use different components.

What does the main circuit flow switch do inside the boiler?

The flow switch detects water movement when the boiler pump operates. It then sends this information to the electronic control so the ignition sequence can continue. It forms part of the boiler’s safety system and helps prevent burner operation where adequate water flow has not been detected.

Why must I check the serial number before ordering this kit?

Several compatible Genus and Microgenus boilers were produced in different editions with specific serial-number ranges. Matching only the main boiler name may not be sufficient, so the model, edition, serial number, GC number and MPN should all be checked.

What symptoms may lead an engineer to test the flow switch?

An engineer may inspect the flow switch where the pump appears to operate but the boiler does not progress correctly through its ignition sequence. Similar symptoms can result from circulation, wiring, control or other hydraulic issues, so they do not automatically confirm that the flow switch is defective.

Does the Ariston 65100519 flow switch kit require professional installation?

Yes. The component is connected to the boiler’s hydraulic, electrical and safety controls. Diagnosis, installation and operational testing should be completed by a suitably qualified Gas Safe registered engineer.