Bosch 1010

High

Compress / Logamatic EMS plus — No communication via EMS BUS connection — the local device hasn't received its EMS token from the bus master for 2 minutes.

Bosch 1010: No communication via EMS BUS connection — the local device hasn't received its EMS token from the bus master for 2 minutes. This fault noticeably affects operation.

Possible causes

Break/disruption in EMS connection.

Check steps

Check that EMS bus accessories (room control, mixing module, etc.) are properly connected; check connection between display and installer module.

Affected parts

EMS-Kabel

Safety note

Isolate power before testing.

Source: Bosch Alarm List A/W Split (8754), 2018-01-10, official Bosch heat pump alarm list (distributed via lvisawo.fi)

Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.

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