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Atag control unit LMU-B A-SER up to 12-2012
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Atag control unit LMU-B A-SER up to 12-2012 S4754600

€ 450.20 incl. VAT

Original spare part Atag. Type: Control unit. Application: Boiler / A203C | vanaf 2008 OSS1. Supplier code: S4754600.

SKU: 8139240 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?
ApplicationBoiler
Series / modelA244C and 6 other models
Atag numberS4754600
Article number8139240
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
All spare parts for Atag A244C →
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Atag control unit LMU-B A-SER up to 12-2012: original Atag spare part, type: Control unit. Application: Boiler (A203C | vanaf 2008 OSS1). Manufacturer number: S4754600; Instalpunt article number: 8139240.

According to the Atag parts lists, this part fits 7 models, including Atag A203C | vanaf 2008 OSS1, Atag A203EC | vanaf 10-2016 OSS2 and Atag A244CL | vanaf 11-2009 OSS1. 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. Work on gas-carrying parts must be carried out by a qualified gas engineer.

Product information: Atag control unit LMU-B A-SER up to 12-2012 S4754600

BrandAtag spare parts
Atag manufacturer numberS4754600
Instalpunt article number8139240
EAN8719638553049
Part typeControl unit (All Atag burner control units · burner control units of all brands)
ApplicationBoiler
Suitable for7 Atag models (see list)
DeliveryIn stock, delivery in 3–5 working days
Price€ 450,20 incl. VAT
OriginSupplied through the official technical wholesale channel, under Atag number S4754600

Fits 7 Atag models

The part Atag control unit LMU-B A-SER up to 12-2012 S4754600 is in the official parts list of these Atag appliances. Click a model for the complete parts list and exploded view.

Atag Boiler (7)

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.

More spare parts for this appliance

Frequently asked questions about this item

Does the Atag control unit LMU-B A-SER up to 12-2012 S4754600 fit my appliance?
This part is in the parts list of 7 Atag models, including the A203C | vanaf 2008 OSS1, A203EC | vanaf 10-2016 OSS2, A244CL | vanaf 11-2009 OSS1, A244C | vanaf 2008 up to 11-2009 OSS2. 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 Atag control unit LMU-B A-SER up to 12-2012 S4754600?
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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