How do I fix the Mitsubishi mini split blinking codes?

A Mitsubishi mini split blinking code is an error code that is displayed when there is a problem with the mini split unit. This code can be caused by a variety of different problems, such as a faulty sensor, a problem with the electrical connection, or a problem with the compressor. If the code is displayed, it is important to troubleshoot the problem so that the unit can be repaired or replaced.

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• Clean or replace the air filter
• Check the air flow direction and adjust if necessary
• Check and clean the evaporator coils
• Check and clean the condenser coils
• Check and clean the outdoor unit

1. Clean or replace the air filter

1. Open the hood of the mini split and locate the air filter. It is usually located behind the engine.
2. Remove the air filter by unscrewing it.
3. Wash the air filter with a mild soap and water.
4. Dry the air filter with a cloth.
5. Replace the air filter by screwing it back on to the housing.

2. Check the air flow direction and adjust if necessary

1. Open the mini split and locate the air flow direction control.
2. Rotate the control to the desired direction.
3. Close the mini split.
4. Check the blinking code indicator on the control.
5. If the code indicator is not blinking, the air flow direction is correct. If the code indicator is blinking, the air flow direction needs to be adjusted.

3. Check and clean the evaporator coils

1. Open the mini split and locate the coils.
2. Check each coil for any debris or lint.
3. If there is debris or lint, use a vacuum cleaner to clean the coil.
4. If the coil is dirty, apply a coat of thermal compound to the coil.
5. Close the mini split and wait for it to cool down.
6. Once the mini split has cooled down, test the coil by turning it on and off. If the coil is working properly, the codes will no longer be blinking.

4. Check and clean the condenser coils

1. Open the mini split and locate the condenser coils.
2. Check the coils for dirt, debris, and corrosion.
3. Clean the coils with a brush or a vacuum cleaner.
4. Dry the coils and replace any corroded parts.

5. Check and clean the outdoor unit

1. Open the outdoor unit.
2. Check the filter and see if it’s dirty. If so, clean it using a filter cleaning kit.
3. Check the evaporator fan for debris and cleaning.
4. Check the condenser fan for debris and cleaning.
5. Check the compressor for debris and cleaning.
6. Check the hoses for kinks and leaks.
7. Replace any parts that need to be replaced.

Still not working? maybe try one of these options:

1. Check the refrigerant levels and recharge if necessary.
2. Check for leaks in the refrigerant system.
3. Check and reset the circuit breaker or fuse.
4. Check the thermostat settings and adjust as necessary.
5. Call a professional for assistance.