how to fix p1 error on air conditioner?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

P1 error on air conditioner is caused by the unit's inability to properly circulate air. This can be caused by a variety of factors, including a dirty air filter, blocked air vents, or a faulty blower motor. To fix this error, first check the air filter and replace it if it is dirty. Next, check the air vents and make sure they are not blocked. Finally, check the blower motor and replace it if it is faulty.

Users typically search for a solution by asking about:

  • mr cool p4 error code
  • how to fix p1 error on air conditioner

1. Check the air conditioner's filters and clean or replace them as needed

Check the air conditioner's filters and clean or replace them as needed in order to fix how to fix p1 error on air conditioner:

  1. Turn off the air conditioner.
  2. Remove the front cover.
  3. Open the filter cover.
  4. Clean or replace the filters as needed.
  5. Replace the filter cover.
  6. Reconnect the power cord.
  7. Turn on the air conditioner.

2. Inspect the air conditioner's coils and clean them if they are dirty

If the coils on the air conditioner are covered in dust or debris, you will need to take them apart and clean them. Start by removing the cover on the coils. You will then need to use a vacuum cleaner to remove all the dirt and debris. Once the coils are clean, you will need to seal them back up and reattach the cover.

3. Make sure that the air conditioner's fans are working properly

  • Inspect the blades on the fan for any damage or wear.
  • Check to see if the fan is plugged into an outlet and working.
  • Verify that the air conditioner is plugged into an outlet and turned on.
  • Open the windows to allow air into the room and turn on the fan.
  • Check the temperature on a thermometer in the room. If it is below the set temperature, the fan is not working and you will need to replace the fan. If the temperature is within the set range, the fan is working and you can proceed to the next step.
  • Verify that the filter is clean and not blocking any airflow to the fan.
  • Clean the fan with a clean cloth if necessary.

4. Check the air conditioner's refrigerant levels and add more if needed

To check the air conditioner's refrigerant levels, first turn off the power to the unit. To do so, turn off the breaker that supplies power to the AC unit. Next, open the cover to the unit. Locate the air conditioner's evaporator coil. Look for a white sticker that indicates the level of refrigerant in the coil. If the refrigerant level is low, you will need to add more refrigerant. To add more refrigerant, open the AC unit's access panel and locate the refrigerant container. Remove the top of the container and add refrigerant as directed on the container. Once the refrigerant level is high enough, close the access panel and turn on the power to the AC unit.

5. Have a professional inspect and service the air conditioner

  1. Call a professional to inspect and service the air conditioner.
  2. Verify that the air conditioner is properly installed and connected to the electrical system.
  3. Check for any obstructions in the air conditioning system.
  4. Locate the air conditioner’s filters and clean them if necessary.
  5. Check the air conditioner’s fan and motor for malfunction.
  6. Test the air conditioner’s compressor by running the unit at full power.
  7. Check the air conditioner’s coils for wear and tear.
  8. Repair or replace any parts that need to be replaced.