Spare parts — usually 3–7 working days EU delivery from € 9.95 · free from € 199 Made-to-order item — levertijd staat bij het product Delivery across the EU WebwinkelKeur 8,8/10 Pay by card, Apple Pay, Pay by Bank, PayPal & Klarna
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A.O. Smith differential air pressure switch
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A.O. Smith differential air pressure switch 0309343(S)

€ 66.36 incl. VAT

Original spare part A.O. Smith. Type: Differential air pressure switch. Application: Hot water cylinder / Twister 45-190. Supplier code: 0309343(S).

Made to order: lead time approx. 3–4 weeks + 3–5 working days delivery

SKU: 8750638 Categories: , Brand:
⏱ Made-to-order item — approx. 3–4 weeks + 3–5 working days delivery
Delivery € 9.95 (AT, DK, ES, IT, SE) / € 12.95 (other EU countries), free from € 199 · 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 / modelTwister 45-190
A.O. Smith number0309343(S)
Article number8750638
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
All spare parts for A.O. Smith Twister 45-190 →
Made-to-order item — this spare part is not on our shelf and is ordered specially for you from the manufacturer, delivery time approx. 3–4 weeks. Check your appliance type and the part number beforehand. Specially ordered items can in principle not be returned. In doubt? Ask the manufacturer or your installer (see also returns).
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A.O. Smith differential air pressure switch: original A.O. Smith spare part, type: Differential air pressure switch. Application: Hot water cylinder (Twister 45-190). Manufacturer number: 0309343(S); Instalpunt article number: 8750638.

According to the A.O. Smith parts lists, this part fits 1 model: A.O. Smith Twister 45-190. The full list is under “Fits”.

Special-order item: it is ordered specially for you from the manufacturer. Specially ordered items can in principle not be returned. Please check the type plate of your appliance and the part number before ordering.

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

Product information: A.O. Smith differential air pressure switch 0309343(S)

BrandA.O. Smith spare parts
A.O. Smith manufacturer number0309343(S)
Instalpunt article number8750638
EAN8717449240738
Part typeDifferential air pressure switch (All A.O. Smith pressure switches and differential pressure switches · pressure switches and differential pressure switches of all brands)
ApplicationHot water cylinder
Suitable for1 A.O. Smith model (see list)
DeliverySpecial-order item, delivery time approx. 3–4 weeks
Price€ 66.36 incl. VAT
OriginGenuine manufacturer part, under A.O. Smith number 0309343(S)

Fits 1 A.O. Smith model

The part A.O. Smith differential air pressure switch 0309343(S) is in the official parts list of this A.O. Smith appliance. Click a model for the complete parts list and exploded view.

A.O. Smith Hot water cylinder (1)

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.

Available: Differential air pressure switch by A.O. Smith

This part is currently out of stock. There is no available alternative of this type for the same models. These A.O. Smith parts of the same type are available, but belong to other models.

Please note: these are not confirmed replacements. Check the manufacturer number in the spare parts list or exploded view of your appliance, or just ask us.

Frequently asked questions about this item

Does the A.O. Smith differential air pressure switch 0309343(S) fit my appliance?
This part is in the parts list of 1 A.O. Smith model, namely the Twister 45-190. 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: it is ordered specially for you from the manufacturer. 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?
No, specially ordered items can in principle not be returned. 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 € 9.95 to Austria, Denmark, Italy, Spain and Sweden and € 12.95 to other EU countries; free delivery from € 199. In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page). 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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