If you suddenly noticed that your air conditioner started to work “half-power” or does not switch on at all, you can try to diagnose and fix the problem on your own. The table with a list of major failures and options for their elimination will help you with that.
NewAir AC-12100E air conditioner troubleshooting
| TROUBLES | POSSIBLE CAUSES | SUGGEST REMEDIES |
| Unit does not start when pressing on/off button | - P1 appears in the display window | Drain the water in the bottom tray. |
| - Room temperature is lower than the set temperature.(Cooling mode) | Reset the temperature. |
| Not cool enough | - The windows or doors in the room are not closed. | Make sure all the windows and doors are closed. |
| - There are heat sources inside the room. | Remove the heat sources if possible. |
| - Exhaust air duct is not connected or blocked. | Connect the duct and make sure it can function properly. |
| - Temperature setting is too high. | Decrease the set temperature. |
| - Air filter is blocked by dust. | Clean the air filter. |
| Noisy or vibration | - The ground is not level or not flat enough. | Place the unit on a flat, level ground if possible. |
| Gurgling sound | - The sound comes from the flowing of the refrigerant inside the air-conditioner. | It is normal. |
| Power shut off at heating mode | - The automatic over heat protection function. When the temperature at the air outlet exceeds158F/70°C the de vice will stop. | Switch on again after the unit has cooled down. |
NewAir AC-14100 air conditioner troubleshooting
| Problem | Possible Causes | Solution |
| The air conditioner does not function. | The unit may be plugged in using a different voltage. | Check if using the wrong voltage. |
| The circuit breaker may be tripped or there is a blown fuse. | Reset the circuit breaker or check for a blown fuse. |
| The water tank is full. | If the full water tank indicator light is flashing, empty the water reservoir. |
| The ambient room temperature is lower than the set temperature. | Lower the set temperature. |
| The unit does not produce adequate cooling. | The unit is in direct sunlight. | Close any curtains or move the unit to a more shaded area. |
| Too many windows or doors are open. | Close doors and windows. |
| There is an additional heat source in the room or there are too many people in the room. | Lower the set temperature. |
| The filter is dusty or dirty. | Clean the filter per instructions above. |
| Air inlet or air outlet is blocked. | Make sure there are no obstructions to proper air circulation through the unit. |
| The ambient room temperature is lower than the set temperature. | Lower the set temperature. |
| The unit is noisy. | The unit is not leveled. | Ensure the unit is positioned on a flat, level surface. |
| The compressor does not work. | The compressor has overheated and shut off. | Wait for temperature to drop and then turn the unit on again. |