H2
Brandt Low Temperature Alarm Condition

Display shows H2 and the cabinet temperature reading is abnormally low or flashing.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Incorrect temperature setting, Faulty temperature sensor reading low, Stuck relay on main PCB causing continuous cooling, Ambient temperature too low for proper regulation

How to Fix / Troubleshooting

Safety first: Unplug the unit before opening panels if deeper checks are needed.

Steps to address H2 low temperature alarm:

  • 1. Check set temperature: Verify that the setpoint is not too low for wine storage. Adjust to the recommended range and monitor.
  • 2. Ambient conditions: If the cooler is installed in a very cold room (e.g., unheated garage), the control system may overcool. Relocate to a room within Brandt's specified ambient range.
  • 3. Sensor check: If the display shows an unrealistically low temperature, the cabinet NTC sensor may be faulty. See the E1 procedure for testing and replacement.
  • 4. Control board relay: If the compressor runs almost continuously regardless of setpoint, the compressor relay on the main PCB may be stuck closed. This requires PCB replacement.
  • 5. Clear alarm: Once the temperature returns to normal, the H2 alarm should clear automatically. If it does not, further sensor or control board diagnosis is needed.
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Repair Difficulty

Medium 3/5

Required Part

Cabinet Temperature Sensor (NTC)
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