Parts/Service for MDF-U55V

Parts/Service for MDF-U55V

Brand: SANYO

Category: Refrigerator

Document Type: Parts/Service

Language: EN

Uploaded: Nov. 21, 2025, 8:27 p.m.

Warranty Information

No warranty information is available in the provided document.

The SANYO MDF-U55V is an Ultra-Low Temperature Freezer. Key operational features include:

  • Temperature Control: Microcomputer-based with a setting range of -50°C to -90°C.
  • Alarms: High temperature, low temperature, filter, door, and power failure alarms with both visual (LEDs) and audible alerts. Remote alarm contacts are also provided.
  • Key Lock: A mode to prevent accidental changes to settings.
  • Self-Diagnosis: Detects and displays error codes for sensor or cascade system failures.
  • STATUS Function: Monitors ambient temperature, power supply voltage, and running rate, displaying status codes.
  • Battery Backup: A Nickel-metal-hydride battery provides backup power for critical functions.
  • Auto Return: The unit returns to normal operation after a set period of inactivity in setting modes.
  • Sample Load Test: Data is provided for performance under load conditions.
  • Temperature Uniformity: Data illustrates temperature consistency across different points within the chamber.

Troubleshooting and error codes

Error codes Description
E01 Temp. sensor is open circuited
E02 Temp. sensor is short circuited
E03 Cascade sensor is open circuited
E04 Cascade sensor is short circuited
E05 Filter sensor is open circuited
E06 Filter sensor is short circuited
E07 AT sensor is open circuited
E08 AT sensor is short circuited
E09 Battery switch is in off position
E10 Compressor temperature is abnormal
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