Brand: HITACHI
Category: Refrigerator
Document Type: Parts/Service
Language: EN
Parts/Service for R-W660ERU9-2
Uploaded: Nov. 21, 2025, 6:04 p.m.
Manual Publish Date: 2011-12-01
The manual provides an overview of the refrigerator's specifications, including type, model, power source, power input, and dimensions. It also details main parts components and features like the compressor, sensors, and defrosting system. Safety precautions during repair work are emphasized, along with a troubleshooting table listing various error codes and their descriptions. Exploded diagrams illustrate the different parts of the freezer and refrigerator sections for easy identification and replacement.
Troubleshooting and error codes
| Priority sequence | Show Error code | On Display PCB | Error LED show On Main PCB | Breakdown list | Breakdown description | Operation and restore timing when breakdown |
| 1 | F1 01 | Light 1 sec. + Blink once | R-FAN-MOTOR | abnormal | R fan motor abnormal | Normal operation continues. |
| 2 | F1 02 | Light 1 sec. + Blink twice | F-SENSOR | abnormal | F-sensor abnormal | Normal operation continues. |
| 3 | F1 03 | Light 1 sec. + Blink 3 times | R-SENSOR | abnormal | R-sensor abnormal | Normal operation continues. |
| 4 | F1 12 | Light 1 sec. + Blink 12 times | D-SENSOR | abnormal | D-sensor abnormal | Normal operation continues. |
| 5 | F1 04 | Light 1 sec. + Blink 4 times | TC-SENSOR | abnormal | TC-sensor abnormal | Normal operation continues. |
| 6 | F1 09 | Light 1 sec. + Blink 9 times | Communication | abnormal | Communication abnormal | Only breakdown description is available. |
| 7 | F0 20 | Blink 20 times | ZIR-ROOM | Communication abnormal | Communication abnormal between Main microcomputer and Display microcomputer. | Display EEPROM data abnormal. |
| 8 | F0 21 | Blink 21 times | F-ROOM | Communication abnormal | Communication abnormal between Main microcomputer and Display microcomputer. | Main EEPROM data abnormal. |
| 9 | F0 02 | Blink twice | R-DAMPER | Over Current | Power module over current. | Compressor stops. |
| 10 | F0 07 | Blink 7 times | - | - | Current magnatic field and rotor magnatic pole does not match. | Repeat 4 times (Compressor restarts after 10 sec.) |
| 11 | F0 08 | Blink 8 times | - | - | Current magnatic field and rotor magnatic pole does not match when the compressor starts. | Compressor restarts after 10 min. |
| 12 | F0 09 | Blink 9 times | - | - | Does not reach 1800 rpm when the compressor starts. | 1. While Main microcomputer communication with Compressor microcomputer, it stops communication. 2. While Compressor running normal, it stops display after compressor keep running 10 min. |
| 13 | F0 11 | Blink 11 times | - | - | Communication abnormal between Main microcomputer and Compressor microcomputer, Compressor keeps operating. | Only breakdown description is available. |
| 14 | F0 12 | Blink 12 times | R fan motor abnormal | R fan motor lock abnormal. | R fan motor stops and restart after 3 min. | Only breakdown description is available. |
| 15 | F0 13 | Blink 13 times | K fan motor abnormal | K fan motor lock abnormal. | K fan motor stops and restart after 3 min. | Only breakdown description is available. |
| 16 | F0 03 | Blink 3 times | Ice maker abnormal | SGN signal abnormal. | Ice maker stops. Cannot make ice. | After 2 hrs, defrost mode will stop and resume normal operation. |
| 17 | F1 05 | Light1 sec. + Blink 5 times | Ice maker sensor abnormal | Ice maker sensor value abnormal. | Cannot make ice. | Only breakdown description is available. |
| 18 | F0 04 | Blink 4 times | Defrost circuit abnormal | Defrost continues even after 2 hours. | Only breakdown description is available. | After 2 hrs, defrost mode will stop and resume normal operation. |
| 19 | F0 14 | Blink 14 times | Power voltage abnormal | Voltage interchange is over 280V or below 180V. | Stop except operation button on the door and inside. | Only breakdown description is available. |
| 20 | F0 19 | Blink 19 times | Gear motor abnormal | Gear motor lock abnormal. | If the Gear motor is lock, then it will be reverse 1 time and show display. If the booth switch off, then the display will stop. | Only breakdown description is available. |
| 21 | F3 01 | Light 3 sec. + Blink once | - | Freezer not cooling | - | F-sensor stays below-10.2 °C (high temp) for 72 hours. |
| 22 | F3.02 | Light 3 sec. + Blink twice | - | Refrigerator not cooling | - | R-sensor stays below 10.0 °C (high temp) for 72 hours. |