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5314

Warning Z1 Disch. gas temp. sensor TR6 open circuit — Discharge gas sensor open circuit

Bosch · Alarm List A/W Split (8754) 2018 01 10

What does 5314 mean?

This warning indicates an open circuit (resistance over 364 kOhm) for the discharge gas temperature sensor TR6.

Common Causes

  • Broken circuit for the discharge gas temperature sensor TR6 or its signal cable.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    With the sensor disconnected from the I/O-module, check the resistance of sensor TR6 and its signal cable.

  2. 2

    Compare the measured resistance to the table value in the documentation.

  3. 3

    Replace the sensor if it is faulty or the cable is damaged.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

1001 / A21/A22/A23/A24Alarm A21/A22/A23/A24 — No communication between system controller and remote control1010 / A11Alarm A11 — No communication via EMS BUS connection1037Alarm 1037 — Outdoor temperature sensor faulty, heating standby mode active
Source: Alarm List A/W Split (8754) 2018 01 10
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