1、 Core light source malfunction

1. Xenon lamp cannot light up normally
   • Possible reasonsXenon lamp lifespan expires (usually 1000-2000 hours), unstable power supply voltage, damaged ballast/trigger, poor contact of lamp tube.
   • solution：
     • Check the usage time of the xenon lamp, and if it exceeds its lifespan, replace the lamp tube with a new one (ensuring that the positive and negative poles of the lamp holder are correctly connected).
     • Measure the input voltage with a multimeter to ensure compliance with equipment requirements (such as 220V ± 10%).
     • Check if the ballast and trigger are working properly and replace them if necessary.
     • Reinstall the lamp or check the wiring connection.
2. The irradiation intensity is unstable or decays too quickly
   • Possible reasonsXenon lamp aging, filter contamination/aging, optical sensor failure, power supply fluctuations.
   • solution：
     • Replace the aging xenon lamp or filter, and regularly clean the filter to avoid dust affecting the transmittance.
     • Calibrate or replace the optical sensor to ensure it is facing the xenon lamp light source.
     • Install a voltage regulator to ensure stable power supply.

2、 Abnormal temperature and humidity control

1. Large temperature fluctuations or inability to reach the set value
   • Possible reasonsTemperature and humidity sensor malfunction, damaged heating/cooling system, blocked ventilation system, incorrect parameter settings.
   • solution：
     • Check and calibrate the temperature and humidity sensors, test whether the heating tube and compressor are working properly, and replace them if necessary.
     • Clean the water circuit of the humidifier to ensure normal water supply; Check for refrigerant leaks and condenser dust accumulation.
     • Reset the temperature and humidity parameters and observe whether the PID regulation is stable.
     • Optimize the internal layout to avoid samples obstructing the airflow path.
2. Humidity deviation from set value
   • Possible reasonsHumidifier/dehumidifier malfunction, improper air inlet settings, humidity sensor drift.
   • solution：
     • Clean the humidification water circuit and nozzle to prevent scale blockage; Check if the humidification tube and small relay are damaged.
     • Adjust the size of the air inlet according to the environmental humidity to maintain a stable humidity level.
     • Regularly calibrate the humidity sensor to ensure accurate readings.

3、 Cooling system malfunction

1. Equipment overheating alarm
   • Possible reasonsInsufficient coolant, water pump malfunction, pipeline/filter blockage.
   • solution：
     • Check the coolant level, and if it is below 2/3 of the level gauge, add deionized water.
     • Check if the cooling water pump is operating normally. If the pump is quiet or not working, it may be a motor malfunction and the manufacturer needs to be contacted for replacement.
     • Dismantle the cooling pipeline and rinse it with clean water, clean the filter to remove impurities.

4、 Auxiliary system malfunction

1. The sprinkler system does not spray water
   • Possible reasonsThe sprinkler water tank is short of water, the sprinkler head is blocked, and the water pump/solenoid valve is damaged.
   • solution：
     • Check the water level of the sprinkler tank, and if there is a shortage of water, add deionized water.
     • Disassemble the sprinkler head, rinse it with clean water, and reinstall it; If it still doesn't work, check if the sprinkler pump or solenoid valve is damaged, and replace the parts if necessary.
2. Excessive noise during operation
   • Possible reasonsFan bearing wear/dust accumulation, abnormal compressor vibration, and loose internal components.
   • solution：
     • Clean the fan and add lubricating oil, and replace the bearings if necessary.
     • Check if the fixing screws of the compressor are loose and adjust the shock absorber pad.
     • Tighten the internal screws and check for loose parts.

5、 Control system malfunction

1. Error or crash
   • Possible reasonsSoftware program errors, insufficient memory, circuit board moisture/damage, external electromagnetic interference.
   • solution：
     • Restart the device or restore factory settings, upgrade the control software to the latest version.
     • Check if the circuit board is damp and replace it if necessary; Ensure that the equipment is kept away from strong electromagnetic interference sources.
2. Large deviation in test data
   • Possible reasonsCalibration failure, improper placement of samples, influence of environmental temperature and humidity, equipment aging.
   • solution：
     • Regularly calibrate equipment (light intensity, temperature and humidity).
     • Ensure that the sample is evenly exposed to light and avoid obstruction.
     • Control the temperature and humidity of the laboratory environment to reduce external interference.