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Remeha flow sensor heat exchanger WH
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Remeha flow sensor heat exchanger WH S102276

€ 131.86 incl. VAT

Original spare part Remeha. Type: Sensor, 51300424. Application: Instantaneous water heater / WH42. Supplier code: S102276.

SKU: 8740321 Categories: , Brand:

Price and stock checked on 20 October 2026.

✓ In stock — delivery usually within 3–5 working days
EU delivery from € 17.95 · Shipping & payment

Price incl. VAT. Any delivery costs are calculated in the basket — see shipping & delivery.

Does this fit my appliance?
ApplicationInstantaneous water heater
Series / modelWH 42 and 3 other models
Remeha numberS102276
Article number8740321
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
All spare parts for Sentry WH 42 →
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Remeha flow sensor heat exchanger WH: original Remeha spare part, type: Sensor. Application: Instantaneous water heater (WH42). Manufacturer number: S102276; Instalpunt article number: 8740321.

According to the Remeha parts lists, this part fits 4 models, including Remeha WH42, Sentry WH 42 and Sentry WH 56. The full list is under “Fits”.

In stock: order before 14:00 and it ships the same working day; delivery within the EU usually takes 3–5 working days.

Check the rating plate of your appliance before ordering; if in doubt, ask the manufacturer or your installer.

Product information: Remeha flow sensor heat exchanger WH S102276

BrandRemeha spare parts
Remeha manufacturer numberS102276
Instalpunt article number8740321
EAN8713809254902
Also known as51300424
Part typeSensor (All Remeha sensors · sensors of all brands)
ApplicationInstantaneous water heater
Suitable for4 Remeha models (see list)
DeliveryIn stock, delivery in 3–5 working days
Price€ 131,86 incl. VAT
OriginSupplied through the official technical wholesale channel, under Remeha number S102276

Also known as: voeler, temperatuursensor, NTC-sensor.

Fits 4 Remeha models

The part Remeha flow sensor heat exchanger WH S102276 is in the official parts list of these Remeha appliances. Click a model for the complete parts list.

Remeha Instantaneous water heater (4)

Check the rating plate of your appliance. Not sure whether this part fits? Check with the manufacturer or your installer; with the correct manufacturer number you can order it here directly.

For which fault is a Remeha sensor replaced?

According to the fault code database, these Remeha fault codes point to this type of part. Always check first that the code matches the appliance type on the rating plate.

CodeWhat is going on
24Temperature sensor
31Temperature sensor
32Return temperature sensor short circuit
33Outdoor temperature sensor fault
34Outdoor temperature sensor fault
35Flue gas temperature sensor fault

All Remeha fault codes explained

Indicative: the same code can have a different cause depending on the situation. Have work on gas, flue or burner adjustment carried out by a qualified installer.

Frequently asked questions about this item

Does the Remeha flow sensor heat exchanger WH S102276 fit my appliance?
This part is in the parts list of 4 Remeha models, namely the WH42, WH 42, WH 56, WHC56. The model type is on the rating plate of your appliance. If in doubt, ask the manufacturer or your installer.
What is the delivery time for the Remeha flow sensor heat exchanger WH S102276?
This item is in stock. Ordered before 14:00, it ships the same working day and usually arrives within three to five working days.
Can I return this item?
Yes, unused and in the original packaging within 14 days of receipt. Unpacked or fitted items and electronics such as PCBs cannot be returned. How to register a return is explained on returns.
What does shipping cost?
Shipping costs € 17.95 to Austria, Denmark, Italy, Spain and Sweden and € 24.95 to other EU countries. In-stock items ordered before 2 pm are dispatched the same working day; delivery usually takes 3–5 working days. Details: Shipping.
I have a fault code, which part do I need?
Look up the code in the fault code finder: per brand and appliance it shows what the code means and which part goes with it. If the code is listed with this part, the part belongs to that fault.

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