Gree Slim Duct B Series User Manual

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OWNER’S

MANUAL

Indoor Unit

DUCT09HP230V1BD

DUCT12HP230V1BD

DUCT18HP230V1BD

DUCT24HP230V1BD

MODELS:

CAT NO:GREE_SLIM DUCT B_OWNERS_11102022

Thank you for choosing our product.

Please read this Owner’s Manual carefully before

operation and retain it for future reference.

To download an electric version of this manual visit

https://gree-comfort-dev.web.app/system-documentation/

Table of Contents

Questions and Answers:

S
Sara HammondAug 16, 2025
Why is my Gree Slim Duct B Air Conditioner not coming on?
- R
  Robert CookAug 16, 2025
  Your Gree Air Conditioner might not be turning on due to several reasons. It could be a power failure, in which case you should wait until the power is restored. There might be loose wiring, requiring you to contact your contractor or an electrician. Another potential cause is a tripped circuit breaker or a burnt-out fuse, which would need professional replacement. Overheating wiring may also be the issue and needs professional repair or replacement. If the unit has restarted immediately after stopping, turn it off, wait 3 minutes, and then turn it back on. Also, ensure that the remote controller shows the correct settings by resetting the function.
A
Autumn DunnAug 19, 2025
What to do if Cooling / Heating is insufficient in my Gree Slim Duct B Air Conditioner?
- D
  Darren MitchellAug 19, 2025
  If your Gree Air Conditioner isn't cooling or heating sufficiently, several factors could be the cause. The voltage might be too low, potentially requiring an HVAC technician. A dirty filter could be restricting airflow, so try cleaning the filter. Make sure the set temperature is appropriate and adjust it if necessary. Finally, check if any doors or windows are open, and close them to improve efficiency.
E
Eric GomezAug 22, 2025
Why is my Gree Slim Duct B indoor unit isn’t receiving the remote controller signal?
- I
  ijacksonAug 22, 2025
  If your Gree Air Conditioner's indoor unit isn't responding to the remote, consider these possibilities: static electricity interference—disconnect power at the breaker for 3 minutes. Ensure the remote is within the 26 ft signal range and has a clear path to the indoor unit receiver. Verify you're pointing the remote at the receiving window at the proper angle. Check the remote's batteries and replace them if they're weak, or replace the remote if it appears damaged. Electronic interference could also be a factor; try moving closer to the indoor unit and turning off other electronics.
F
fhollandAug 26, 2025
How to fix no air coming from Gree Slim Duct B Air Conditioner indoor unit?
- D
  Denise TuckerAug 26, 2025
  If no air is coming from your Gree Air Conditioner's indoor unit, check for these issues: ensure that neither the air inlet nor the air outlet is blocked by any obstacles and eliminate them. If you are in HEAT mode, the indoor fan will stop once the set temperature is reached. Also, if you've just turned on the HEAT mode, it's normal for the fan to take several minutes to start to prevent cold air from blowing out.
D
douglascoxAug 28, 2025
Why can’t I adjust the “Set” temperature on my Gree Air Conditioner?
- F
  Francis Ramirez MDAug 28, 2025
  You might not be able to adjust the set temperature on your Gree Air Conditioner because your desired temperature is outside the allowed range. The set temperature range is 16°C~30°C (61°F~86°F).
B
Brianna LeonAug 31, 2025
Why is there mist coming from Gree Air Conditioner indoor unit’s air outlet?
- K
  Kim BrownAug 31, 2025
  The mist coming from your Gree Air Conditioner's indoor unit's air outlet is likely due to high indoor temperature and humidity. This occurs when the indoor air is cooled rapidly. The mist should disappear as the indoor temperature and humidity decrease over time.
J
Jonathan PorterSep 3, 2025
How to get rid of strange smells from Gree Slim Duct B?
- M
  Michael SchwartzSep 3, 2025
  To eliminate strange smells from your Gree Air Conditioner, first identify and remove the source of the odor. Then, clean the filter.
K
Katherine KellySep 6, 2025
Why is my Gree Fan not cooling properly?
- G
  Gabrielle RobertsSep 6, 2025
  If your Gree Fan isn't cooling well, several factors could be at play: * A dirty filter might be restricting airflow. * The room might have too much heat (too many people). * Open doors or windows could be letting heat in. * The inlet and outlet of the indoor unit might be blocked. * The temperature setting could be too high. * The refrigerant level could be low, possibly due to a leak.
D
Daniel DunlapSep 9, 2025
Why is my Gree Fan heating poorly?
- J
  John LambSep 9, 2025
  If your Gree Fan isn't heating effectively, check these potential causes: * A dirty filter can impede performance. * Open doors or windows could be letting heat escape. * The temperature setting might be too low. * Low refrigerant levels, possibly from a leak, could also be the issue.
Q
qmcclureSep 12, 2025
Why doesn’t the indoor fan of my Gree Fan start up during heating?
- D
  Douglas WilliamsSep 12, 2025
  If the indoor fan of your Gree Fan doesn't start during heating, here's why: 1. At startup, the indoor unit (IDU) fan will not operate until the heat exchanger (indoor coil) becomes hot to prevent cold air delivery. 2. During Defrost, the IDU fan stops because the system temporarily switches to cooling mode to prevent cold air delivery. The fan will resume operating after defrosting.

Gree Slim Duct B Series Specifications

General

Brand	Gree
Model	Slim Duct B Series
Category	Air Conditioner
Language	English

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