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Remeha ignition pin
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Remeha ignition pin S102421

€ 370.86 incl. VAT

Original spare part Remeha. Type: Electrode, Ignition, 70017601. Application: Hot water cylinder / Sentry SLN 125. Supplier code: S102421.

SKU: 8740047 Categories: , Brand:

Price and stock checked on 20 October 2026.

✓ In stock — delivery usually within 3–5 working days
EU delivery from € 12.95 · Shipping & payment

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

Does this fit my appliance?
ApplicationHot water cylinder
Series / modelSLN 125-185 and 3 other models
Remeha numberS102421
Article number8740047
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
All spare parts for Sentry SLN 125-185 →
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Remeha ignition pin: original Remeha spare part, type: Electrode, Ignition. Application: Hot water cylinder (Sentry SLN 125). Manufacturer number: S102421; Instalpunt article number: 8740047.

According to the Remeha parts lists, this part fits 4 models, including Remeha Sentry SLN 125, Remeha Sentry SLN 245 and Sentry SLN 125-185. 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 ignition pin S102421

BrandRemeha spare parts
Remeha manufacturer numberS102421
Instalpunt article number8740047
EAN8713809247140
Also known as70017601
Part typeElectrode (All Remeha ignition and ionisation · ignition and ionisation of all brands)
ApplicationHot water cylinder
Suitable for4 Remeha models (see list)
DeliveryIn stock, delivery in 3–5 working days
Price€ 370,86 incl. VAT
OriginSupplied through the official technical wholesale channel, under Remeha number S102421

Also known as: ontstekingselektrode, ontsteekpen, ontstekingspen.

Fits 4 Remeha models

The part Remeha ignition pin S102421 is in the official parts list of these Remeha appliances. Click a model for the complete parts list and exploded view.

Remeha hot water cylinder (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.

Position on the parts diagram

This part appears on the exploded view of 2 appliances. Open the drawing for the appliance and click the number to check that you have the right part.

For which fault is a Remeha electrode 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
02No flame formation or no ionisation (after 5 start attempts). No ignition spark.
23A flame is detected before ignition.
63Maximum number of ignition attempts detected.
77Ionisation loss during operation (after 4 restarts during 1 heat demand)

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 ignition pin S102421 fit my appliance?
This part is in the parts list of 4 Remeha models, namely the Sentry SLN 125, Sentry SLN 245, SLN 125-185, SLN 245-510. 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 ignition pin S102421?
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 € 12.95 to Austria, Denmark, Italy, Spain and Sweden and € 16.95 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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