Payment methods
ARISTON MICROGENUS 2 24 28 & 31 MFFI NTC THERMISTOR SENSOR 990686
IN STOCK
FROM £11.40
Ariston Chaffoteaux DHW Thermistor Sensor 990686-01 was 990686
Product Overview
The Ariston Chaffoteaux DHW Thermistor Sensor 990686-01 was 990686 is a critical component designed for specific Ariston heating systems. This NTC / Flow Sensor monitors vital system parameters like temperature and water flow, sending real-time data to the PCB. properly functioning components are vital for the energy efficiency and safety of your boiler.
ℹ️ Product Condition Options:
This part may be available in New, Refurbished, or Compatible conditions. Please select your desired option from the dropdown menu above. All refurbished parts are professionally tested to ensure reliability.
This part may be available in New, Refurbished, or Compatible conditions. Please select your desired option from the dropdown menu above. All refurbished parts are professionally tested to ensure reliability.
Technical Insight & Common Failure Symptoms
Based on service data: Ariston Another customer shared the classic symptoms of thermistor failure that many
Replacing this part often resolves the following issues:
- Restores reliable system operation and eliminates fault codes.
- Resolves specific failure symptoms such as component malfunction.
- Ensures safety compliance and efficient boiler performance.
Compatibility
This part (MPN: 990686) is designed for models within the Ariston range. Please strictly verify the part number against your boiler's technical manual before ordering to guarantee fitment.
Safety Advice: Boiler parts involve gas, water, and electricity. Installation must be carried out by a Gas Safe registered engineer.
This part fits the following boilers:
Fits Appliance(s)
GC No.
Ariston Clas 21 FF System
Ariston Clas 28 FF System
Ariston Clas HE 18 System (Edition 5 - 9/11/2010)
Ariston Clas HE 18 System (Edition 7 - 30/08/2011)
Ariston Clas HE 24 (Edition 5 - 9/11/2010)
Ariston Clas HE 24 (Edition 7 - 30/08/2011)
Ariston Clas HE 24 System (Edition 5 - 9/11/2010)
Ariston Clas HE 24 System (Edition 7 - 30/08/2011)
Ariston Clas HE 30 (Edition 5 - 9/11/2010)
Ariston Clas HE 30 (Edition 7 - 30/08/2011)
Ariston Clas HE 30 System (Edition 5 - 9/11/2010)
Ariston Clas HE 30 System (Edition 7 - 30/08/2011)
Ariston Clas HE 38 (Edition 5 - 9/11/2010)
Ariston Clas HE 38 (Edition 7 - 30/08/2011)
Ariston Clas HE R 12
Ariston Clas HE R 18
Ariston Clas HE R 24
Ariston Combi A 24 MFFI (28/06/2013)
Ariston Combi A 24 MFFI (Edition 9 - 23/09/2011)
Ariston Combi A 30 MFFI (28/06/2013)
Ariston Combi A 30 MFFI (Edition 9 - 23/09/2011)
Ariston E Combi 24 FF (Edition 1 - 02/06/2008)
Ariston E Combi 24 FF (Edition 4 - 30/08/2011)
Ariston E Combi 30 FF (Edition 1 - 02/06/2008)
Ariston E Combi 30 FF (Edition 4 - 30/08/2011)
Ariston E Combi 38 FF (Edition 1 - 02/06/2008)
Ariston E Combi 38 FF (Edition 4 - 30/08/2011)
Ariston E System 24 (Edition 4 - 30/08/2011)
Ariston E System 30 (Edition 4 - 30/08/2011)
Ariston Eco Combi 27 MFFI
Ariston Eco System 27 RFFI
Ariston Genus HE 24 (Edition 5 - 9/11/2010)
Ariston Genus HE 24 (Edition 7 - 30/08/2011)
Ariston Genus HE 24 System (Edition 5 - 9/11/2010)
Ariston Genus HE 24 System (Edition 7 - 30/08/2011)
Ariston Genus HE 30 (Edition 5 - 9/11/2010)
Ariston Genus HE 30 (Edition 7 - 30/08/2011)
Ariston Genus HE 30 System (Edition 5 - 9/11/2010)
Ariston Genus HE 30 System (Edition 7 - 30/08/2011)
Ariston Genus HE 38 (Edition 5 - 9/11/2010)
Ariston Genus HE 38 (Edition 7 - 30/08/2011)
Ariston Microgenus 11 24 MFFI
Ariston Microgenus 11 24 MFFI Edition 3 (From Serial No 2320436400001)
Ariston Microgenus 11 28 MFFI
Ariston Microgenus 11 28 MFFI Edition 3 (From Serial No 2320436400001)
Ariston Microgenus 11 31 MFFI
Ariston Microgenus 11 31 MFFI Edition 3 (From Serial No 2320436400001)
Ariston Microgenus HE 24MFFI
Ariston Microgenus HE 28MFFI
Ariston Microgenus HE 32MFFI
Chaffoteaux Minima HE 24
Chaffoteaux Minima HE 30
Chaffoteaux Minima HE 35
Chaffoteaux Minima System 24
Chaffoteaux Minima System 30
Chaffoteaux Minima System 35
Chaffoteaux MX2 24 FF
Chaffoteaux MX2 30 FF
41-116-27
41-116-28
41-116-26
41-116-26 EDITION 7
47-116-51
47-116-51 EDITION 7
41-116-22
41-116-22 EDITION 7
47-116-52
47-116-52 EDITION 7
41-116-23
41-116-23 EDITION 7
47-116-53
47-116-53 EDITION 7
41-116-30
41-116-31
41-116-32
47-116-44 2013
47-116-44 EDITION 9
47-116-45 2013
47-116-45 EDITION 9
47-116-62
47-116-62 EDITION 4
47-116-63
47-116-63 EDITION 4
47-116-64
47-116-64 EDITION 4
41-116-34 EDITION 4
41-116-35 EDITION 4
47-116-23
41-116-08
47-116-54
47-116-54 EDITION 7
41-116-24
41-116-24 EDITION 7
47-116-55
47-116-55 EDITION 7
41-116-25
41-116-25 EDITION 7
47-116-56
47-116-56 EDITION 7
47-116-25
47-116-25 ED 3
47-116-26
47-116-26 ED 3
47-116-27
47-116-27 ED 3
47-116-37
47-116-38
47-116-39
47-980-33
47-980-34
47-980-35
41-980-33
41-980-34
41-980-35
47-980-28
47-980-29
Delivery
Free next day UK delivery is available on orders over £50.
Orders placed before 3 PM are usually dispatched the same working day.
Delivery times may vary for remote areas, Highlands, islands, and non-mainland UK destinations.
If you need urgent delivery help, please contact our customer service team before placing your order.
All Orders First 30 Days:
You can return or cancel your orders for any reason at any time within 30 days of receipt. After 30 days, we reserve the right to charge a restocking fee or refuse the return.
Parts must be returned in the same condition and packaging as received, or we may deduct a percentage of the cost of the part.
A full refund or exchange will be agreed once the item(s) have been received and inspected to ensure they are unused and in their original packaging where applicable.
If the part is returned as faulty and is found to be working upon inspection, postage costs will be deducted from the refund.
Faulty Items After 30 Days:
All items come with a 1 year HTS warranty from the date of purchase. Warranty means HTS will repair or replace the item.
Refunds:
Our returns team will process your refund after we receive and check your items. Please allow up to 15 days for your refund to be processed.
The refund will be made to the original payment method used to place the order.
Contact Us:
For any queries, email us at returns@heatingtradesupplies.com or call +44 01912633708.
Customer Services
National Boiler Spares Ltd
Tyne View Terrace
Wallsend
Tyne and Wear
NE28 6SG
