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Contact us
Questions about the Vaillant cooling resistor, your order, delivery or a return? Get in touch and we will help.
Where to buy
The resistor is sold through our eBay listing (seller boarder895), an established seller since 2003 with 100% positive feedback. eBay handles payment, delivery and returns.
Before you email
You may find a faster answer in our cooling upgrade guides, which cover what the cooling resistor is, which heat pumps need one, how cooling is activated, and the two Vaillant part numbers.
If you are emailing about an existing order, please quote your eBay order number so we can find it quickly. We aim to reply to all messages within two working days.
Orders, delivery and returns
For how delivery works, see Delivery & tracking. To return an item, see Returns & refunds. Orders are dispatched from the UK within 1–2 working days of payment clearing on eBay.