Samsung Gen7 PWM Pump?

[glyn.hudson]

@Topaz

That would be wonderful, I guess it’s merely a USB RS485 adapter, or a sdcard (I know both methods work for firmware upgrade).

You need an S-NET dongle to update the FW:

Samsung S-Net Pro Dongle MIM-CO2N

and SNET PRO software: https://www.samsunghvac.com/Software-Downloads/SNET-Pro2

You can see what firmware versions are available via the Samsung Partner Portal: GlobalPartner

My FW updated is detailed in this post below, YMMV. I have a Gen6, so FW could be totally different for Gen7, check the hardware versions carefully before updating!

Samsung MIM-C02N S-NET Pro Dongle

No, apparently the UK Samsung technical don’t get to see any FW change logs themselves I have a AE050RXYDEG-EU heat pump. All I know is that updating my indoor controller MIME03CN (DB91-02103B) to 220614 seem to fix my pump PWM. It wasn’t modulating at all before, now it’s modulating correctly My Main Micom (DB91-02091B) is running firmware 190704, the latest firmware for this is 221130. However, without a changelog and because my HP is working well, I’m a bit hes…