Heatsink temperature sensor error

What does H10 mean?

The sensor for detecting the heatsink temperature is indicating undefined values. This prevents accurate monitoring of the heatsink's thermal status, potentially leading to overheating if not addressed.

• Failure of the heatsink temperature sensor (e.g., NTC thermistor) itself, providing an out-of-range resistance value.
• Broken or loose wiring connection between the heatsink temperature sensor and the control board.
• Corrupted input or processing circuit on the control board for the temperature sensor signal.
• External electromagnetic interference (EMI) affecting the low-voltage sensor signal wiring.

Click steps to track your progress.

1. 1

   Completely power cycle the drive (disconnect all power, wait 5 minutes) to reset the internal monitoring circuits.

2. 2

   Using a multimeter, measure the resistance of the heatsink temperature sensor directly at its terminals (e.g., X12.1, X12.2) and compare with the manufacturer's specified resistance-temperature curve (e.g., 10kOhm at 25°C).

3. 3

   Inspect the wiring from the heatsink temperature sensor to the control board for any breaks, loose connections, or signs of heat damage.

4. 4

   Check for any significant sources of EMI near the drive that could be affecting sensor wiring. Ensure proper grounding of the drive chassis and shielded cabling.

5. 5

   If available, use diagnostic software to monitor the raw temperature sensor reading to determine if the reported value is consistently out of range or erratic.