To Next PageTo Next PageWhy is my Haier HSM12HEKC03/R2DB Air Conditioner cooling poorly?
Poor cooling in your Haier Air Conditioner can be due to several reasons: a dirty air filter (it should be cleaned every 15 days), obstacles blocking the inlet or outlet, incorrect temperature settings, open doors or windows, direct sunlight entering the room (use curtains), or too many heat sources or people in the room.
Why does my Haier HSM12HEKC03/R2DB Air Conditioner smell?
The Haier Air Conditioner might be circulating smells from the room's interior, such as odors from furniture, paint, or cigarettes.
What to do if my Haier HSM12HEKC03/R2DB Air Conditioner blows out mist or steam?
During COOL or DRY operation, the Haier Air Conditioner may blow out mist due to the sudden cooling of indoor air. This is normal.
Why can’t I change the fan speed in dry mode on my Haier Air Conditioner?
In DRY mode, when the room temperature becomes lower than the set temperature plus 2 degrees Celsius, the Haier Air Conditioner will run intermittently at LOW speed regardless of the fan setting.
General| Brand | Haier |
|---|---|
| Model | HSM12HEKC03/R2DB |
| Category | Air Conditioner |
| Language | English |
General safety precautions for repair, classified into warning and caution categories.
Specific warnings and precautions to follow while performing repair work.
Details connectors and their functions on the indoor unit's control PCB.
Details automatic, cooling, demoisture, and heating operation modes.
Explains low load protection to prevent indoor heat exchanger frosting.
Details high load protection for outdoor system when coil temperature is high.
How the system reports and handles abnormal operations between indoor and outdoor units.
How malfunction codes are stored, displayed, and reset.
Defines operating frequency range, starting, speed, and calculation for compressors.
Details protection against high air-blowing temp and sensor malfunction.
Explains high temp protection for indoor heat exchanger during heating.
Details resistance values for room and pipe sensors in the indoor unit.
Identifies and describes main parts of indoor unit and remote controller.
Covers unit start, temperature setting, and fan speed selection.
Step-by-step guide for replacing the air purifying filter.
Lists common phenomena and potential causes for self-diagnosis.
Lists common problems and their corresponding checks and measures.
Lists error codes for indoor and outdoor malfunctions with reference pages.
Details thermistor errors, detection methods, and troubleshooting steps.
Describes fan motor malfunctions, causes, and troubleshooting steps.
Details outdoor fan motor faults, causes, and troubleshooting procedures.
Explains IPM protection, detection, causes, and troubleshooting.
Describes compressor over-current protection, causes, and troubleshooting.
Details communication faults between IPM and outdoor PCB, causes, and troubleshooting.
Explains power supply faults, causes, and troubleshooting steps.
Details overheat protection for exhaust temperature and related troubleshooting.
Describes communication faults between indoor and outdoor units, causes, and troubleshooting.
Explains inverter side current detection abnormalities and troubleshooting.
Details high work-intense protection in heating mode and its causes.
