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A.O. Smith glow plug 120V
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A.O. Smith glow plug 120V 0304242(S)

€ 115.00 incl. VAT

Original spare part A.O. Smith. Type: Glow plug. Application: Hot water cylinder / ADM(C) 40. Supplier code: 0304242(S).

SKU: 8750087 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?
ApplicationHot water cylinder
Series / modelADM(C) 50 and 3 other models
A.O. Smith number0304242(S)
Article number8750087
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
All spare parts for A.O. Smith ADM(C) 50 →
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A.O. Smith glow plug 120V: original A.O. Smith spare part, type: Glow plug. Application: Hot water cylinder (ADM(C) 40). Manufacturer number: 0304242(S); Instalpunt article number: 8750087.

According to the A.O. Smith parts lists, this part fits 4 models, including A.O. Smith ADM(C) 40, A.O. Smith ADM(C) 50 and A.O. Smith ADM(C) 80. 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: A.O. Smith glow plug 120V 0304242(S)

BrandA.O. Smith spare parts
A.O. Smith manufacturer number0304242(S)
Instalpunt article number8750087
EAN8717449154707
Part typeGlow plug (All A.O. Smith ignition and ionisation · ignition and ionisation of all brands)
ApplicationHot water cylinder
Suitable for4 A.O. Smith models (see list)
DeliveryIn stock, delivery in 3–5 working days
Price€ 115,00 incl. VAT
OriginSupplied through the official technical wholesale channel, under A.O. Smith number 0304242(S)

Fits 4 A.O. Smith models

The part A.O. Smith glow plug 120V 0304242(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 (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 A.O. Smith glow plug 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.

Frequently asked questions about this item

Does the A.O. Smith glow plug 120V 0304242(S) fit my appliance?
This part is in the parts list of 4 A.O. Smith models, namely the ADM(C) 40, ADM(C) 50, ADM(C) 80, ADM(C) 90. 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 A.O. Smith glow plug 120V 0304242(S)?
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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