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A.O. Smith ignition electrode 0310491(S)

€ 41.60 incl. VAT

Original spare part A.O. Smith. Type: Electrode, Ignition. Application: Hot water cylinder / UB 110. Delivery time: approx. 3–4 weeks. Supplier code: 0310491(S).

Special-order item — delivery time approx. 3–4 weeks — non-returnable

SKU: 8750927 Categories: , Brand:

Price and stock checked on 20 October 2026.

Made-to-order item — ordered specially for you, see delivery time below
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?
ApplicationHot water cylinder
Series / modelUB 110 and 2 other models
A.O. Smith number0310491(S)
Article number8750927
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
Made-to-order item — this spare part is not on our shelf and is ordered specially for you from the manufacturer or wholesaler, delivery time approx. 3–4 weeks. Specially ordered items cannot be returned: the manufacturer or supplier does not take them back. So check the type number of your appliance and the article number of the spare part beforehand. In doubt? Check with the manufacturer or your installer (see also returns).
9,0/10 WebwinkelKeur⚠ Made-to-order item: no returns possible iDEAL · Klarna · Bancontact 085-303 7272 ma–vr 08:00–17:00

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A.O. Smith ignition electrode: original A.O. Smith spare part, type: Electrode, Ignition. Application: Hot water cylinder (UB 110). Manufacturer number: 0310491(S); Instalpunt article number: 8750927.

According to the A.O. Smith parts lists, this part fits 3 models, including A.O. Smith UB 70, A.O. Smith UB 110 and A.O. Smith UB 140. The full list is under “Fits”.

Special-order item (delivery time approx. 3–4 weeks): it is ordered specially for you from the manufacturer and is non-returnable.

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

Product information: A.O. Smith ignition electrode 0310491(S)

BrandA.O. Smith spare parts
A.O. Smith manufacturer number0310491(S)
Instalpunt article number8750927
EAN8717449245689
Part typeElectrode (All A.O. Smith ignition and ionisation · ignition and ionisation of all brands)
ApplicationHot water cylinder
Suitable for3 A.O. Smith models (see list)
DeliverySpecial-order item, delivery time approx. 3–4 weeks
Price€ 41,60 incl. VAT
OriginSupplied through the official technical wholesale channel, under A.O. Smith number 0310491(S)

Also known as: ontstekingselektrode, ontsteekpen, ontstekingspen.

Fits 3 A.O. Smith models

The part A.O. Smith ignition electrode 0310491(S) is in the official parts list of these A.O. Smith appliances. Click a model for the complete parts list and exploded view.

A.O. Smith Hot water cylinder (3)

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 spare part is shown as position 27 on the parts drawing. Open the drawing for the appliance and click the number to check that you have the right spare part.

  • UB 110position 27blad mantel en warmtewisselaar
  • UB 140position 27blad mantel en warmtewisselaar
  • UB 70position 27blad mantel en warmtewisselaar

For which fault is a A.O. Smith electrode replaced?

According to the fault code database, these A.O. Smith 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
F01Fout in voedingscircuit: Condens op de ionisatiepen.
F04Three unsuccessful ignition attempts: fault in the glow igniter circuit
F06Contact with a metal surface due to a broken cable or deformed ionisation pin.
F08Ionisation fault: defective safety relay
XB2-XXXX(Lockout fault) Ignition fault - three failed ignition attempts: no gas

All A.O. Smith 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.

Available: Electrode for the same appliances

This part is currently out of stock. These A.O. Smith parts of the same type are listed for at least one of the same appliance models and are available.

Before ordering, check the manufacturer number in the spare parts list or exploded view of your appliance.

Frequently asked questions about this item

Does the A.O. Smith ignition electrode 0310491(S) fit my appliance?
This part is in the parts list of 3 A.O. Smith models, namely the UB 70, UB 110, UB 140. 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 of this made-to-order item?
This is a special-order item: we order it specially for you from the wholesaler. The expected delivery time is approx. 3–4 weeks. You can also see the delivery time next to the stock status at the top of this page.
Can I return this made-to-order item?
A specially ordered item is not taken back by the supplier, so returns are not possible. So check the article number and the rating plate of your appliance beforehand. Is something wrong with your order? Then contact us via info@instalpunt.nl. The full terms and conditions are 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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