H2
CDA
Freezer Compartment Overcool / Sensor High Reading
H2 is displayed and the freezer compartment is excessively cold, with very hard ice and possible cracking noises.
Advertisements
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.
Advertisements
Possible Causes
Freezer NTC sensor shorted, Sensor incorrectly clipped to very cold section of evaporator, Main PCB control fault, Stuck compressor relay
How to Fix / Troubleshooting
Safety: Disconnect power before accessing the freezer evaporator area.
Steps:
- 1. Verify settings: Ensure the freezer is not set to the lowest possible temperature. Adjust to a normal setting.
- 2. Access freezer sensor: Remove drawers and rear panel to locate the freezer NTC sensor on or near the evaporator.
- 3. Check mounting: Ensure the sensor is correctly positioned and not in direct contact with the coldest part of the evaporator if the design requires an air-sensing position.
- 4. Test and replace: Measure resistance; a very low resistance at normal temperature indicates a short. Replace with a new CDA freezer compartment NTC sensor.
- 5. PCB diagnosis: If overcooling continues with a known-good sensor, the main PCB may be faulty and should be replaced by a professional.
Note: Prolonged overcooling can increase energy use and stress the compressor; address H2 promptly.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Freezer Compartment NTC Temperature Sensor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements