It's very cold. The air conditioner in the school dormitory seems to be locked, so it can't heat. What happened? Ask the master for advice.

1. Press and hold the "+"and "-"adjustment keys of conditional temperature on the air conditioner remote controller for more than 5 seconds, and the display lock icon on the remote controller will disappear. Generally, the air conditioner remote control is locked only because the+and-keys are accidentally pressed.

2. Generally, there are reset buttons on the remote control, some on the remote control operation panel and some on the back of the remote control. You can unlock it by pressing the reset button with a toothpick.

The simplest and rudest way is to take out the battery of the remote controller and put it back in a minute. This means that the air conditioner remote control will be restored to factory settings, and the lock icon will disappear, so it can also be unlocked.

Matters needing attention

1, the power supply voltage should not fluctuate too much (10% fluctuation is allowed), the air conditioner should be powered by a dedicated line, and the single-phase three hole socket should be used, and the plug should be plugged to the end.

2. The casing of the indoor unit should be cleaned frequently. Generally, it can be wiped clean with a clean dry cloth or neutral detergent. It is absolutely not allowed to rinse directly with water. If it is wiped with a cloth, it should be done after the power is cut off.

3. The indoor temperature should not be adjusted too low, otherwise it will be harmful to human body, and the set temperature should be adjusted appropriately.

4. If you feel that the indoor temperature is too high, you can lower the set temperature appropriately.

5. The effective use of timer can achieve the effect of energy saving and comfort.