Brand: Haier
Category: Refrigerators
Document Type: Manual
Language: EN
Manual for DW-86L959W/828W
Uploaded: Nov. 21, 2025, 7:15 p.m.
Warranty Information
The manual does not explicitly state a warranty period. Users should contact Haier for warranty details.
Operation Summary
This manual provides instructions for operating the Haier Ultra Low Temperature (ULT) Freezer. It covers initial setup, including connecting to power and setting the desired temperature. Key operational aspects include understanding the control panel interface, managing alarms, and utilizing features like the electromagnetic lock and backup systems. The manual also details daily use, such as loading samples, cleaning procedures, and maintenance.
Specific sections address user parameters, data export via USB, and network connectivity for remote monitoring. Safety precautions and troubleshooting tips are also provided to ensure proper and safe use of the appliance.
Troubleshooting and error codes
| Fault | Troubleshooting |
|---|---|
| Freezer does not start up | Is the power supply normal? Has the main protector been turned on yet? Is the voltage supply too low? Is there any voltage input from the outside? |
| Poor refrigeration effect | Is the ambient temperature too high? Are the inner doors and outer doors closed properly? (Has any ice or frost damaged the seals between the door and the frame?) Is the condenser filter clogged? Is the temperature setting correct? Is the freezer being kept away from direct exposure to sunlight? Is the freezer near any heat source? Is the porthole plug installed in the porthole with proper insulation materials? Has the freezer been loaded with too many non-frozen samples within the last few hours? |
| The unit is noisy | Is the unit set on a firm and level floor? Is the exterior of the unit touching any objects? Is the freezer unit leveled with the leveling legs? |