Mitsubishi Heavy Industries DXK09Z5L-S User Manual (English)

Questions and Answers:

J
Jennifer LopezAug 20, 2025
Why is my Mitsubishi Heavy Industries DXK09Z5L-S Air Conditioner not cooling or heating properly?
- B
  breyesAug 21, 2025
  If your Mitsubishi Heavy Industries Air Conditioner isn't cooling or heating properly, make sure you've set the thermostat to a suitable temperature. Also, check if the air filter is clean and not clogged. Ensure that all doors and windows are closed, there's no direct sunlight entering the room, no heat sources present, and that the room isn't overcrowded.
C
Cheryl SteeleAug 22, 2025
How to troubleshoot a Mitsubishi Heavy Industries DXK09Z5L-S Air Conditioner that won't turn on?
- J
  James MartinezAug 22, 2025
  If your Mitsubishi Heavy Industries Air Conditioner isn't working at all, check if the power switch is turned on. Also, verify if the timer has been set to the “ON” position. Finally, check for a power failure or a blown fuse.
D
Denise BeckAug 25, 2025
What to do if remote control signals are not received by my Mitsubishi Heavy Industries Air Conditioner?
- J
  John FranklinAug 25, 2025
  If the remote control signals are not being received by your Mitsubishi Heavy Industries Air Conditioner, it may be because the signal receiver on the unit is exposed to direct sunlight or other bright light. Try cutting out the sunlight or reducing the other light.
M
Mandy LeeAug 26, 2025
Why doesn't my Mitsubishi Heavy Industries Air Conditioner restart immediately after I turn it off?
- B
  Brooke LucasAug 26, 2025
  If your Mitsubishi Heavy Industries Air Conditioner doesn't restart immediately after being stopped but the RUN light is on, it's because the restart function is blocked for 3 minutes to protect the unit. The microcomputer's three-minute protection timer will automatically restart it.
G
Gerald VelezAug 28, 2025
What to do if my Mitsubishi Heavy Industries DXK09Z5L-S Air Conditioner airflow is not blown out when starting the HEATING operation?
- D
  David EllisAug 28, 2025
  If your Mitsubishi Heavy Industries Air Conditioner isn't blowing air when starting the HEATING operation, but the RUN light blinks slowly (1.5 sec ON, 0.5 sec OFF), it's because the airflow is stopped to prevent cold air from blowing out until the indoor heat exchanger warms up. This may take 2 to 5 minutes due to the HOT KEEP program.
J
Juan PageAug 29, 2025
Why is airflow not blown out for 5 to 15 min at HEATING operation in Mitsubishi Heavy Industries DXK09Z5L-S?
- D
  Dylan ContrerasAug 30, 2025
  If your Mitsubishi Heavy Industries Air Conditioner airflow is not blown out for 5 to 15 minutes, or blows not warm wind for a moment during HEATING, and the RUN light blinks slowly (1.5 sec ON, 0.5 sec OFF), the unit may be defrosting automatically due to low outdoor temperature and high humidity. Please wait for it to complete.
T
Tanya GreenAug 31, 2025
Why is there no airflow when starting the DRY operation on my Mitsubishi Heavy Industries DXK09Z5L-S Air Conditioner?
- C
  christinelarsonAug 31, 2025
  If airflow is not blown out when starting the DRY operation on your Mitsubishi Heavy Industries Air Conditioner, but the RUN light is on, the indoor fan may stop to prevent re-evaporation of dehumidified moisture and to save energy.
S
Samuel ZimmermanSep 2, 2025
Why does my Mitsubishi Heavy Industries DXK09Z5L-S release steam during COOL operation?
- J
  Jacqueline AllenSep 2, 2025
  If you notice some steam escaping during COOL operation of your Mitsubishi Heavy Industries Air Conditioner, this can occur when the room's temperature and humidity are very high. It should disappear as the temperature and humidity decrease.
V
vincent03Sep 4, 2025
Why does my Mitsubishi Heavy Industries DXK09Z5L-S have a slight smell?
- D
  damongloverSep 4, 2025
  If you notice a slight smell from your Mitsubishi Heavy Industries Air Conditioner, it may be caused by tobacco or cosmetics adhering to the unit. The air blown out during operation may carry this smell.
S
Stephanie RobinsonSep 5, 2025
Why do I hear a gurgling sound from my Mitsubishi Heavy Industries DXK09Z5L-S Air Conditioner?
- A
  Amber BrownSep 5, 2025
  If you hear a slight gurgling sound from your Mitsubishi Heavy Industries Air Conditioner, it's caused by refrigerating liquid moving within the unit.