Mitsubishi Electric PKA-A12HA6 User Manual (English)

Questions and Answers:

Y
ygarciaSep 5, 2025
What to do if Mitsubishi Electric Air Conditioner operates without pressing the power button?
- J
  Jennifer AguilarSep 5, 2025
  If your Mitsubishi Electric Air Conditioner operates without pressing the ON/OFF button, check if the on timer is set and press the ON/OFF button to stop operation. Also, check if the air conditioner is connected to a central wired remote controller and consult the concerned people who control the air conditioner. Check if “ ” appears in the wired remote controller display and consult the concerned people who control the air conditioner. Finally, check if the auto recovery feature from power failures has been set and press the ON/OFF button to stop operation.
Z
zmccannAug 25, 2025
Why is my Mitsubishi Electric Air Conditioner not blowing warm air immediately?
- M
  melissagreenAug 25, 2025
  If warm air does not blow immediately from your Mitsubishi Electric Air Conditioner when heating operation starts, it is normal. Warm air will start blowing once the indoor unit has sufficiently warmed up.
J
Jon ClayAug 25, 2025
Why does my Mitsubishi Electric Air Conditioner stop before reaching set temperature?
- R
  Raymond VelasquezAug 26, 2025
  If your Mitsubishi Electric Air Conditioner stops before reaching the set temperature during heating mode, it may be due to frost forming on the outdoor unit when the outdoor temperature is low and the humidity is high. The outdoor unit will perform a defrosting operation, and normal operation should begin after approximately 10 minutes.
J
jessica73Aug 27, 2025
What to do if Mitsubishi Electric Air Conditioner shows error code?
- B
  Brandon RiceAug 27, 2025
  If an error code appears on your Mitsubishi Electric remote controller display, the protection devices have operated to protect the air conditioner. Do not attempt to repair this equipment by yourself. Turn off the power switch immediately and consult your dealer. Be sure to provide the dealer with the model name and information that appeared in the remote controller display.
J
jessica46Aug 27, 2025
What to do if my Mitsubishi Electric Heat Pump shows error code E6?
- K
  Kara RomanAug 27, 2025
  If your Mitsubishi Electric Heat Pump displays check code E6, it indicates an indoor/outdoor unit communication error, potentially due to contact failure, a short circuit, or incorrect wiring of the connecting wire between the indoor and outdoor units. Check the LED display on the outdoor control circuit board, using a Connect A-control service tool (PAC-SK52ST).
M
Matthew RodriguezSep 13, 2025
Why does Mitsubishi Electric Air Conditioner move vanes up and down when changing airflow?
- E
  Ellen HernandezSep 13, 2025
  When the airflow direction is changed on your Mitsubishi Electric Air Conditioner, the vanes move to the set position after detecting the base position.
M
martinezmarkSep 12, 2025
Why does Mitsubishi Electric Air Conditioner make cracking sounds?
- J
  Jason SharpSep 12, 2025
  If your Mitsubishi Electric Air Conditioner is making cracking or creaking sounds, it is because parts rub against each due to expansion and contraction from temperature changes.
K
Kristin PattonSep 12, 2025
Why does my Mitsubishi Electric Air Conditioner make flowing water sounds?
- S
  Sergio JonesSep 12, 2025
  If your Mitsubishi Electric Air Conditioner is making flowing water or hissing sounds, it is because refrigerant is flowing in the air conditioner or when the refrigerant flow is changing.
K
Katrina FosterSep 4, 2025
What to do if Mitsubishi Electric Air Conditioner stops on its own?
- G
  Gary HallSep 4, 2025
  If your Mitsubishi Electric Air Conditioner stops without pressing the ON/OFF button, check if the off timer is set and press the ON/OFF button to restart. Also, check if the air conditioner is connected to a central wired remote controller and consult the concerned people who control the air conditioner. Finally, check if “ ” appears in the wired remote controller display and consult the concerned people who control the air conditioner.
C
Christopher Johnson MDSep 2, 2025
What to do if the Mitsubishi Electric PKA-A12HA6 trouble is not reoccurring and not logged?
- R
  ryan19Sep 2, 2025
  If a problem with your Mitsubishi Electric Heat Pump occurred but is not reoccurring and not logged, re-check the abnormal symptom. Conduct troubleshooting to ascertain the cause of the trouble. If the cause is not ascertained, continue to operate the unit for the time being. If the problem persists, it may indicate no abnormality concerning parts such as electrical components, the controller board, or the remote controller.

Mitsubishi Electric PKA-A12HA6 Specifications

General

Model	PKA-A12HA6
Refrigerant	R410A
Indoor Unit Dimensions (HxWxD)	12-1/2 x 39-3/8 x 9-7/8 inches
Outdoor Unit Dimensions (HxWxD)	550 x 800 x 285 mm
Weight (Indoor Unit)	9 kg
Power Supply	220-240 V, 50 Hz
Type	Heat Pump
Coefficient of Performance (COP)	3.61
Coefficient of Performance (Heating)	3.61
Noise Level (Outdoor Unit)	50 dB(A)