Hello, 1. Turn off the power of the wall hanging furnace and wait for it to cool.
2. Use a vacuum cleaner or soft brush to gently remove dust from around the fan.
3. Remove the fan and clean the blades and inside the fan with a soft cloth or vacuum cleaner.
4. If there is stubborn dust or stains, you can use a mixture of dishwashing liquid and warm water to gently clean the inside of the blades and fans.
5. Reinstall the fan on the wall mounted furnace, and then restart the power supply.
Note: When cleaning the wall hanging stove fan, be sure to pay attention to safety. Make sure the power is off and wait for the wall hanging furnace to cool completely before cleaning. If you are unsure how to clean a wall mounted stove fan, consult a professional for help.
You have to take it down to clean it thoroughly, but it's a lot of work. If you don't want to dismantle it, there are two ways:
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1, use a sink to connect the water under the air conditioner, flush the wind wheel with water, but be careful not to rush to the circuit part of the air conditioner, remember to cut off the power supply before washing.
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Ask professional maintenance personnel to open the panel, blow it clean with a hair dryer or remove the fan to clean it