Mitsubishi

Mitsubishi MSZ-AP35VG

Answers and step-by-step fixes from the official Mitsubishi manual.

What is the operation indicator lamp doing?

• Lit: Unit is working to reach your set temperature. The room is still about 2°C or more away from the temperature you set.
• Blinking: Room is nearly at your set temperature. The room temperature is now close to the temperature you set.
• Not lit: Unit is in standby (multi system only). When several indoor units share one outdoor unit, a unit in standby waits its turn between cooling and heating.

Common problems

The unit will not turn on

1. Is the breaker turned on? Check the breaker for the air conditioner's power supply.
2. Is the power supply plug connected? Make sure the plug is pushed in fully.
3. Is the on timer set? If the on timer is set, the unit will only start at that time.

The room does not cool or heat enough

1. Is the temperature setting appropriate? Check that the set temperature is right for cooling or heating.
2. Is the fan setting appropriate? Change the fan speed to High or Super High to cool or heat faster.
3. Are the filters clean? Dirty filters reduce airflow and performance.
4. Are there obstacles blocking the air inlet or outlet? Clear anything blocking the indoor or outdoor unit's air inlet or outlet.

The remote control does not work

1. Are the batteries exhausted? Weak batteries can stop the remote from working.
2. Is the battery polarity correct? Check that the positive and negative ends are the right way round.
3. Did you press the reset button after replacing batteries? The reset button must be pressed after fitting new batteries or the remote may not work right.
4. Get close to the indoor unit The signal may not reach the indoor unit depending on room conditions.

Water leaks from the indoor unit

1. Is the front panel closed accurately? An improperly closed front panel can let water leak out.
2. Does water flow smoothly from the drain hose? Check that water drains freely from the edge of the drain hose.

Step-by-step guides

Clean the air filter

1. Switch off the power supply or turn off the breaker
2. Lift the front panel until it clicks
3. Hold the hinges and pull to remove the filter
4. Remove dirt with a vacuum cleaner, or rinse with water
5. Dry the filter well in the shade
6. Install the front panel by reversing the removal steps

Replace the remote control batteries

1. Remove the front lid of the remote controller
2. Insert new AAA alkaline batteries, negative pole first
3. Install the front lid
4. Press the reset button gently with a thin instrument
5. Press the clock button and set the current time

Prepare the unit before long term storage

1. Run cool mode at the highest temperature, or fan mode, for 3 to 4 hours
2. Press the button to stop the operation
3. Turn off the breaker or disconnect the power supply plug
4. Remove all batteries from the remote controller