# Samsung EHS AE040RXEDEG/EU / AE260RNWSEG/EU firmware

**URL:** <https://community.openenergymonitor.org/t/samsung-ehs-ae040rxedeg-eu-ae260rnwseg-eu-firmware/30550>\
**Category:** Heatpump\
**Created:** [27 October 2026 10:00 UTC](https://community.openenergymonitor.org/t/samsung-ehs-ae040rxedeg-eu-ae260rnwseg-eu-firmware/30550 "2026-10-27T10:00:32Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Nicolae\_Rosia](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/nicolae_rosia/32/39434_2.png) [@Nicolae\_Rosia](https://community.openenergymonitor.org/u/Nicolae_Rosia)\
**Post date:** [27 October 2026 10:00 UTC](https://community.openenergymonitor.org/t/samsung-ehs-ae040rxedeg-eu-ae260rnwseg-eu-firmware/30550/1 "2026-10-27T10:00:32Z")

</div>

Hello,

My setup is made of Samsung EHS AE260RNWSEG/EU paired with AE040RXEDEG/EU.

I was wondering if someone has the firmware for AE040RXEDEG/EU (4kW) and AE060RXEDEG/EU (6kW). I wanted to compare them, see if I could somehow flash the 6kW version to the 4kW.

I believe the hardware is identical and the only difference is in EEPROM.

Also, if someone has a changelog / firmware list for both indoor/outdoor, that would be appreciated as well. For some reason with my current firmware the Waterpump PWM is reported as 2% even when it is off (?).

Outdoor:

Main Micom: DB91-02091B **190704**

Inverter1 Micom: DB91-01930A **100007**

EEPROM: DB82-04382A **190410**

Indoor:

Main Micom: DB91-02103B **2304C8**

Thank you,

Nicolae

---

<div class="post-metadata">

**Author:** ![mrsimonbennett](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/mrsimonbennett/32/34847_2.png) [@mrsimonbennett](https://community.openenergymonitor.org/u/mrsimonbennett)\
**Post date:** [27 October 2026 11:12 UTC](https://community.openenergymonitor.org/t/samsung-ehs-ae040rxedeg-eu-ae260rnwseg-eu-firmware/30550/2 "2026-10-27T11:12:38Z")

</div>

The best bet is to sign up for the Samsung Business portal and then email them asking for firmware. They don’t seem to update them online any more. I am waiting for the latest to be emailed to me as I want to see if they fixed the hunting issue with the 16 kW R290