I have a faulty Eberspacher 12V D2 D4 D4 airtronic mini thermostat controller 221000320700 controlling my airtronic D4, 25 2113, Serial No 305775CC. Can I replace the failed controller with an 802 Modulator Controller for Airtronic D4 80210003 (Part Number 292100820003). There are four wires coming from my present unit and five wires coming from the 802 unit. This makes me think it is not compatible. Is there a wiring diagram for the 802 and how to replace the faulty four wire controller with the 802 five wire controller?

Question

I have a faulty Eberspacher 12V D2 D4 D4 airtronic mini thermostat controller 221000320700 controlling my airtronic D4, 25 2113, Serial No 305775CC. Can I replace the failed controller with an 802 Modulator Controller for Airtronic D4 80210003 (Part Number 292100820003). There are four wires coming from my present unit and five wires coming from the 802 unit. This makes me think it is not compatible. Is there a wiring diagram for the 802 and how to replace the faulty four wire controller with the 802 five wire controller?

This question is related to Eberspacher Airtronic 802 Modulator Controller for Airtronic D2 D4 S2 M2 | 80210003.

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Answers (1)

Answered by Butler Technik's Michael Burgess
Posted 9th October, 2024 at 11:15 by Michael Burgess

The Eberspacher 802 Controller can be used with the Eberspacher D4 heater. The wiring is the same as the previous 801 controller. You will find the wiring diagram in our Eberspacher technical library at https://www.butlertechnik.com/downloads/cms/7593/eberspacher-espar-801-contoller-uk-wiring-diagram.pdf. If you require technical support please call +44 (0)1522243310 or email sales@butlertechnik.com.

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