Manual for AE-XM24HR

Manual for AE-XM24HR

Brand: SHARP

Category: Home Appliances

Document Type: Manual

Language: EN

Uploaded: Nov. 21, 2025, 9:17 p.m.

Warranty Information

Refer to the warranty card for details regarding warranty coverage and period.

Outdoor Unit Functions:

  • Frequency Control: Manages compressor speed for cooling and heating efficiency, with features to prevent overheating of both indoor and outdoor heat exchangers.
  • Protective Controls: Includes over-current protection (DC and AC), compressor overheat protection, and power transistor module protection to ensure safe operation.
  • Self-Diagnosis: The unit has a self-diagnosis function to display error information via LEDs on the indoor unit and flashing patterns on the outdoor unit's LED1.
  • Defrost Operation: Automatically activates defrost cycle during heating mode under specific temperature and operational time conditions.
  • Active Filter Circuit: Utilizes an active filter and IPM for high efficiency, improving power factor and reducing harmonic current.

Troubleshooting and error codes

NO. Function Operation Description Detection time Restart condition Restarts time In door Out door Inspection location/method Remedy
1 DC over current Compressor is stopped if a current approximately 50A or more flows in the power transistor module. During compressor operation Automatically restarts after safety time (180 seconds) 4 times Yes Yes N/A N/A
2 AC over current Lowers the operating frequency if the compressor AC current exceeds set value(). Stops the compressor if the current exceeds at minimum frequency. During compressor operation Automatically restarts after safety time (180 seconds) 4 times Yes Yes N/A N/A
3 Compressor overheat prevention control Lowers the operating frequency if the temperature of the compressor thermistor (TH1) rises above 108°C. Compressor is stopped if the temperature stays above 108 °C for 2 minutes at minimum frequency. During compressor operation Automatically restarts after safety time (180 seconds) No limit No No N/A N/A
4 Compressor high temperature error Compressor is stopped if the compressor thermistor is above 113 °C (Or when TH1 shorts) During compressor operation Automatically restarts when thermistor (TH1) temperature falls below 99 °C (approximately 30 minutes) 4 times Yes Yes N/A N/A
5 Outdoor heat exchanger overheat prevention control Lowers the operating frequency if the temperature of the outdoor heat exchanger rises above 57°C during cooling. Stops the compressor if the temperature stays above 57°C for 2 minutes at minimum frequency During compressor operation Automatically restarts after safety time (180 seconds) No limit No No N/A N/A
6 Thermistor short Compressor is stopped, if heat exchanger or outdoor thermistor shorts. Close the expansion valve of the corresponding room, if some suction thermistor shorts. When the room turns ON and the compressor starts. Operation OFF 1 time Yes Yes N/A N/A
7 Thermistor open Compressor is stopped, if compressor or heat exchanger or outdoor thermistor opens. Close the expansion valve of the corresponding room, if some suction thermistor shorts. opens. When the room turns ON and the compressor starts. Operation OFF 1 time Yes Yes N/A N/A
8 AC abnormal current Compressor is stopped, if the operating frequency is above 70Hz and the compressor current is below 0.8A. During compressor operation Automatically restarts after safety time (180 seconds) 4 times Yes Yes N/A N/A
9 Serial signal error INDOOR: If open, while timer LED blinks, operation is continued. If short, operation is continued. OUTDOOR: Closes the expansion valve of the corresponding room if the outdoor unit does not receive a serial signal from one or more indoor unit for 30 seconds. Compressor is stopped, if the outdoor unit does not receive a serial signal from all indoor units. During operation Automatically restarts as soon as the serial communication becomes possible. No limit Yes Yes N/A N/A
10 Miswiring check error Compressor is stopped, and miswiring check operation ends. During miswiring operation Miswiring check operation will not restart automatically. 4 times Yes Yes N/A N/A
11 Indoor heat exchanger overheat prevention control Lowers the operating frequency if the temperature of any of indoor heat exchanger rises high temperature during heating. Stops the compressor if the temperature stays high for 2 minutes at minimum frequency. During compressor operation Automatically restarts after safety time.(180 sec.) No limit No No N/A N/A
12 Power factor module (Active filter) over voltage error Compressor stops if DC voltage is 450V or higher. During compressor operation Automatically restarts after safety time.(180 sec.) 4 times Yes Yes N/A N/A
13 Power factor module (Active filter) low voltage error Compressor stops if DC voltage is 280V or lower. During compressor operation Automatically restarts after safety time.(180 sec.) 4 times Yes Yes N/A N/A
14 Power factor module (Active filter) clock error When power source frequency cannot be determined (at startup). or when power source clock cannot be detected for 1 continuous second (at startup). At compressor startup, when in operation. Compressor continues operation without stopping. None Yes Yes N/A N/A
15 Outdoor unit DC fan error Operation stops if there is no input of rotation pulse signal from outdoor unit fan motor for 30 seconds. When outdoor unit fan is in operation. Operation OFF or ON Yes 1 Yes Yes N/A N/A
16 DC Compressor rotation error In the case that the feed back signal from the compressor is not input or abnormal. During compressor operation Automatically restarts after safety time (180 sec.) 8 times Yes Yes N/A N/A
17 IPM overheat prevention control. IPM high temperature error Lowers the operating frequency if the temperature of the IPM rises high temperature. Stops the compressor if the temperature strays high for 2 minutes at minimum frequency. During compressor operation Automatically restarts after safety time.(180 sec.) No limit No No N/A N/A
18 Thermal fuse error When thermal fuse in the outdoor terminal board blew. Operation OFF 1 time Yes Yes Yes N/A N/A
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