Brand: HITACHI
Category: Other
Document Type: Manual
Language: EN
Manual for MSU23
Uploaded: Nov. 21, 2025, 6:33 p.m.
Power Setting: Turn the power knob to select the desired power level (e.g., 140, 440, 610, 800). The output power ranges from 17% to 100% micro.
Time Setting: Turn the timer knob to set the desired cooking time. The oven will automatically start cooking once power and time are set.
Stopping: The unit will "Dong" to stop when the cooking time is up. For safety, always set the time to "0" when not in use. When removing food, ensure the timer switch is turned to 0 to prevent overheating and damage to the magnetron.
Applications: Different power levels are suitable for various tasks, such as softening ice cream, defrosting, cooking fish, reheating, and boiling water.
Troubleshooting and error codes
| Normal | ||
|---|---|---|
| Microwave oven interfering TV reception | Radio and TV reception may be effected when microwave oven operating. It is similar to the interference of small electrical appliances, like mixer, vacunm cleaner, and electric fan. It is normal. | |
| Dim oven light | In low power microwave cooking, oven light may become dim. It is normal. | |
| Steam accumulating on door, hot air out of vents | In cooking, steam may come out of food. Most will escape from vents. But some may accumulate on cool places like the oven door. It is normal. | |
| Oven started accidentally with no food in. | It is forbidden to run the unit without any food inside. This may cause damage to the oven. | |
| Trouble | Possible Cause | Remedy |
| Oven can not be started. | (1) Power cord not plugged in tightly. | Unplug. Then plug again after 10 seconds. |
| (2) Fuse blowing or circuit breaker works. | Replace fuse or reset circuit breaker (repaired by professional personnel) | |
| (3) Trouble with outlet. | Test outlet with other electrical appliances. | |
| Oven does not heat. | (4) Door not closed properly. | Close door properly. |
| Glass turntable makes noise when microwave oven operates | (5) Dirty roller rest and oven bottom. | Refer to "Maintenance of Microwave" to clean dirty parts. |