Bosch A01 (5202)

Medium

Compress — Outdoor sensor T1 — short circuit (resistance too low).

Bosch A01 (5202): Outdoor sensor T1 — short circuit (resistance too low). This fault usually isn't an immediate stop, but should be checked soon.

Possible causes

Sensor T1 or signal cable shorted.

Check steps

Check signal cable.
Measure/replace sensor T1.

Affected parts

Außenfühler T1

Safety note

230V — isolate power.

Source: Bosch resmi servis kılavuzu — Alarm List 8754, code 5202, Display Code A01, Installer: "Info Outside temperature sensor T1 short circuit — Warning if the resistance of the outdoor sensor T1 57°C)."

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

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