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Stiebel Eltron inverter Carel single-phase
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Stiebel Eltron inverter Carel single-phase 303558

€ 983.75 incl. VAT

Original spare part Stiebel Eltron. Type: Inverter. Application: Heat pump / LWZ 5 CS Premium (05/2019). Delivery time: approx. 5–10 working days. Supplier code: 303558.

SKU: 8742420 Categories: ,

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?
ApplicationHeat pump
Series / modelLWZ 5 CS Premium (05/2019) and 2 other models
Stiebel Eltron number303558
Article number8742420
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
All spare parts for Stiebel Eltron LWZ 5 CS Premium (05/2019) →
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Stiebel Eltron inverter Carel single-phase: original Stiebel Eltron spare part, type: Inverter. Application: Heat pump (LWZ 5 CS Premium (05/2019)). Manufacturer number: 303558; Instalpunt article number: 8742420.

According to the Stiebel Eltron parts lists, this part fits 3 models, including Stiebel Eltron LWZ 5 CS Premium (05/2019), Stiebel Eltron LWZ 8 CS Premium (02/2019) and Stiebel Eltron LWZ 504 (04/2014). 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: Stiebel Eltron inverter Carel single-phase 303558

BrandStiebel Eltron spare parts
Stiebel Eltron manufacturer number303558
Instalpunt article number8742420
EAN4017213035589
Part typeInverter (All Stiebel Eltron electrical parts · electrical parts of all brands)
ApplicationHeat pump
Suitable for3 Stiebel Eltron models (see list)
DeliveryIn stock, delivery in 3–5 working days
Price€ 983,75 incl. VAT
OriginSupplied through the official technical wholesale channel, under Stiebel Eltron number 303558

Fits 3 Stiebel Eltron models

The part Stiebel Eltron inverter Carel single-phase 303558 is in the official parts list of these Stiebel Eltron appliances. Click a model for the complete parts list and exploded view.

Stiebel Eltron Heat pump (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 part appears on the exploded view of 3 appliances. Open the drawing for the appliance and click the number to check that you have the right part.

Frequently asked questions about this item

Does the Stiebel Eltron inverter Carel single-phase 303558 fit my appliance?
This part is in the parts list of 3 Stiebel Eltron models, namely the LWZ 5 CS Premium (05/2019), LWZ 8 CS Premium (02/2019), LWZ 504 (04/2014). 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 Stiebel Eltron inverter Carel single-phase 303558?
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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