Hi. Does the Eberspacher 801 controller work with the eberspacher airtronic M2 D4L or other latest generation heaters?

I have tried to connect but I cannot get the heater to fire up. Thanks in advance.

Question

Hi. Does the Eberspacher 801 controller work with the eberspacher airtronic M2 D4L or other latest generation heaters? I have tried to connect but I cannot get the heater to fire up. Thanks in advance.

This question is related to Eberspacher Airtronic Heater 801 temperature controller with diagnostic | 80110003.

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Answers (1)

Answered by Butler Technik's David Butler
Posted 6th March, 2025 at 15:23 by David Butler

My first choice for M2 D4L heater would be an Eberspacher Easystart PRO - SEE WEBLINK - has great diagnostics plus timer and temp regulation functionality with built in temp sensor option included

https://www.butlertechnik.com/item/Eberspacher/EasyStart-PRO-for-Airtronic-S2-M2-and-Hydronic-S3-12v-24v-Heaters-221000352200/619

Your 801 controller unfotunately is NOT compatible with M2 D4L Eberspacher heater. You are correct in thinking that an 802 controller would work, but to be honest an 802 controller would definitely not be my first choice, it's functionality is very limited on the M2 D4L ( it does not have, error fault code reading function, so no diagnostics for future-proof operation.

My second choice Easystart Select - see weblink - simple operation, diagnostics but less comprehensive, no internal temp sensor

https://www.butlertechnik.com/item/Eberspacher/Easy-start-Select-controller-Airtronic-or-Hydronic-heater-221000341300/6SE

Thanks for getting in touch, any questions just email sales@butlertechnik.com

David

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