Brand: Mitsubishi
Category: Refrigerator
Document Type: Manual
Language: EN
Manual for MR-B42R
Uploaded: Nov. 21, 2025, 9:20 p.m.
Warranty Information
No specific warranty period information is available in the provided text.
Display Example
- The versa compartment is now being displayed.
- The temperature control for the versa compartment is set at "Soft freezing, Medium".
- Supercool freezing is in operation.
- The ice making mode for the ice making compartment is set at "Crystal".
Initial Settings
- Choose your favorite settings.
- Refrigerator: Temperature control to medium
- Ice: Regular ice making
- Versa: Soft freezing, Temperature control to medium
- Freezer: Temperature control to medium
- Vegetable: Temperature control to medium
- Not set yet: Child safety lock, SUPER Supercool Freezing, QCK Fast cooling
About door alarm
The number of times of "peep, peep" sounding tells you the following conditions:
- 4 times*: The door on the refrigerator, ice making or freezer compartment is open for more than 1 minute. Close the door.
- *The buzzer sounds "peep, peep" 4 times in every 1 minute after opening the door. It continues to sound if the door is open for more than 5 minutes.
- Check if the door is not fully closed or food is pinched (at the rear end of the packing case).
- Check it at least once every month.
- If the buzzer keeps sounding even after closing the door, call up the retail store which you purchased this refrigerator from.
- The operation panel blinks while interlocking with the door alarm sounding.
If lamps on the operation panel blinks
The refrigerator is in the demonstration operation when all the lamps on the display blink 3 times in a regular interval or the compartment display and temperature control display take turn to blink repeatedly.
The refrigerator suspends its cooling function during this mode. Cancel the demonstration operation. page 26
Reset the settings
Use this function when, for example, you forget the settings. This operation brings the compartment selection, temperature control, fast cooling and supercool freezing settings back to the initial ones at the time of installation (purchase).
- Press ROOM and SELECT simultaneously for about 3 seconds. (until the buzzer emits “peep, peep” tone.)
- The temperature control for VR does not change.
- If the ice making compartment has been set to QCK, it switches to REG. If set in other settings, no changes take place.
Troubleshooting and error codes
| Situation | Confirmation | Solution/Cause |
|---|---|---|
| Refrigerator does not cool | ① Is the compartment setting set to "L"? ② Is it just started? | ① Set to "M" or "H". ② It takes about 4-5 hours to sufficiently cool. For summer, it takes about 24 hours. |
| Low cooling of the refrigerator | ① Is it just started? | It takes about 4-5 hours to sufficiently cool. For summer, it takes about 24 hours. |
| Ice melts | ① Is the compartment setting set to "L"? ② Is it just started? ③ Is there enough space around the refrigerator, or is it exposed to direct sunlight? ④ Is the airflow inside the refrigerator obstructed? Or is the door opened frequently, or not closed properly? | ① Set to "M" or "H". ② It takes about 4-5 hours to sufficiently cool. For summer, it takes about 24 hours. ③ Check if installation is correct. ④ Check if food is stored too much? Is the door closed properly? |
| Cannot make ice / Ice melts | ① Is it just started? ② Are the water supply pipe and water tank installed correctly in the water tank? ③ Is the water supply pipe installed correctly in the water tank? ④ Are there any food items or ice server in the ice storage bin? | ① It takes about 4-5 hours to sufficiently cool. For summer, it takes about 24 hours. ② Check installation. ③ Check installation. ④ The unit judges that the ice storage bin is full. Remove food items and level the ice. |
| Frozen foods outside the freezer compartment | ① Is the temperature set to "H"? | ① Set to "M". Also, the temperature temporarily lowers during supercooling operation. |
| Frozen foods outside the freezer compartment (foods start to thaw) | ① Is the temperature set to "H"? | ① Set to "M". Also, the temperature temporarily lowers during supercooling operation. |
| Condensation on the outside and inside of the refrigerator. Frosting in the freezer compartment. Water dripping to the floor. | ① Is the refrigerator door opened frequently or not closed properly? ② Is it rainy and the humidity is high? | ① Condensation occurs when the humidity in the air cools down. It may also occur due to small gaps in the refrigerator door. Water drips to the floor. ② Condensation temporarily occurs. Wipe with a dry cloth. Frosting easily occurs in the freezer. Try to reduce the time the refrigerator door is opened. |
| Door opens by itself. Door cannot be closed. | ① Are there foods obstructing the compartment or shelves? ② Are there any food items fallen behind the sliding drawer? Are there any wires caught between the door and the main unit? ③ Are all installations secure? Are the adjustable supports firmly on the floor? | ① Do not let food items protrude from the storage box or shelves. ② Please tidy up items caught between the doors. ③ Adjust the adjustable supports to slightly raise the front of the refrigerator for easier closing. |
| Door open alarm sounds. | Refer to page 37, 54. | - |
| Ice cracks, sticks together, turns white and melts. | Refer to page 49 for ice shape and clarity. | - |
| Water tank or water pipe freezes. | ① Is the water supply pipe properly installed in the water tank? Are there any foreign objects attached to the water tank and water pipe connection? ② Are there any food items or plastic dropped behind the ice maker or freezer storage bin? | ① Freezing occurs due to improper installation or foreign objects causing a gap between the water pipe and the connection. ② Remove fallen food items or plastic. |
| Water tank or water pipe gets warm. Electrical appliances cause static. | ① Is the refrigerator installed near electrical appliances such as a TV? ② Is the refrigerator's power cord too close to the antenna connection? | ① Install the refrigerator away from electrical appliances like TVs. ② Use a dedicated power outlet. |
| Loud operation sound / Strange noise. These sounds are not abnormal. | ① The operation sound suddenly gets louder or changes tone. ② A "clattering, click" sound is heard periodically (every 1-2 hours). ③ A "click, click" sound is heard when plugging in, or when ice making stops (every 1-2 hours). ④ A "hiss" sound is heard when closing the door. ⑤ A "hiss" or "gurgling" sound is heard periodically. ⑥ A striking sound or dripping sound is heard when opening the door. ⑦ A "buzzing" sound is heard sometimes. ⑧ A low "whoosh" sound is heard when opening the freezer door. | ① Normal operation during startup, when the ambient temperature rises, when the door is frequently opened, or during supercooling operation. ② This is the sound of the automatic ice maker. It operates every 100 minutes even if there is no water in the tank. ③ This is the sound of the automatic ice maker checking its operation. ④ Sound of the fan motor starting. ⑤ Sound of refrigerant (gas) flowing. ⑥ Sound of plastic expanding due to warm air entering the refrigerator. ⑦ This is the sound of the air flow control damper or the HIKARI i-see Sensor in the versa compartment operating. ⑧ This is the sound of the cooling fan blowing air. |
| Blue LED of the versa compartment does not light up. | Check if the blue LED of each compartment lights up when the versa compartment door is open and the refrigerator door is open. The blue LED of the versa compartment lighting up is normal. | - |