Brand: Haier
Category: Refrigerators
Document Type: Manual
Language: EN
Manual for DW-86L288/388/628/386/626/490/728/828/486 DW-86W420/100
Uploaded: Nov. 21, 2025, 8:55 p.m.
Manual Publish Date: 2011-02-26
Warranty Information
1-year warranty on compressors and 3 years on parts and labor for the rest of the unit.
The Haier ULT Freezer requires specific installation environments and procedures. Proper usage includes adhering to power supply requirements, grounding, and avoiding hazardous materials. Routine maintenance involves cleaning, defrosting, and checking filters. The manual details temperature adjustment, alarm conditions, and troubleshooting for various issues. It also covers pre-installation information, initial loading, and operation after a power outage.
Troubleshooting and error codes
| Issue | Questions to Ask |
|---|---|
| Freezer does not start up. | Is the power supply normal? Has the main power switch been turned on yet? Is the voltage supply too low? Is a larger amount of load placed into the unit at one time? |
| Freezer's refrigeration ability is reduced. | Is the environment temperature too high? Are the inner doors and outer door closed properly? Does any ice and frost damage the seal between the door and the frame? Is the condenser filter clogged? Is the temperature setting correct? Is the freezer far away from any direct sunshine? 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 floor? Does the exterior of the unit touch any objects? Is the freezer unit leveled with the leveling legs? Does the freezer operate in a low temperature zone? Is the noise emitted from the compressors? Is the noise a crackling sound? |