I've read the 701 controller would be compatible with my old D3LC installed on my boat? But that I would need an external temperature sensor. Is this correct, and can it be wired in ( current controller is a 301 rheostat )

Question

I've read the 701 controller would be compatible with my old D3LC installed on my boat? But that I would need an external temperature sensor. Is this correct, and can it be wired in ( current controller is a 301 rheostat )

This question is related to Eberspacher Airtronic Range 7 Day Timer | 70110003 | 292100710003.

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Answers (1)

Answered by Butler Technik's David Butler
Posted 20th October, 2025 at 17:25 by David Butler

Unfortunately this 701 type controller is no longer available, no longer manufactured by Eberspacher UK. Do you know if your heater is a D3LC? Or could it possibly be the later generation D3LC Compact?

the exact model variation makes a lot of difference regarding compatible controllers for your heater. If you are unsure, perhaps take a photo and send it into us at sales@butlertechnik.com

Thank you

David

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