General processing method when no fault code is displayed.

一、 Poor cooling effect

1. Is the machine installed in a location where the temperature is too high causing poor heat dissipation?

2. Check if the condenser heat sink is dirty or the filter is not cleaned.

3. The machine has exceeded its normal service life, replacing the compressor can restore the original effect.

4. The system may leak some refrigerant.

二、 the temperature is unstable

The temperature is far beyond the set temperature difference, or it is always cooled or warmed up. Check whether the power supply voltage is too low (the voltage is normal between 197 ~ 242V). Due to the low voltage, the refrigeration solenoid valve and the bypass solenoid valve cannot be switched normally .

三、 No water flow or small water flow

Check whether the pump air is clean, whether the filter at the bottom of the water tank is blocked, whether the pump capacitance is bad, and whether the relay controlling the pump is closed.

General handling methods when fault codes are displayed

一、sensor failure

Check the resistance value of the temperature sensor head around 20 and 5k ohms. The resistance value of the probe will change if you touch it with your hand.

二、ultra high and low temperature alarm

1. Check if the air in the water system is not exhausted, you can pull out the water outlet, let the water naturally flow out, and then turn it on after installation.

2. Check if the filter at the bottom of the water tank is blocked.

3. Whether the pump suction port is flat.

4. The pump itself is stuck or the coil is open or the capacitance is bad.

5. The pump has water circulation. If the flow switch is not connected, the flow switch is broken. three. No water flow or small water flow: Check whether the air in the pump is clean, whether the filter at the bottom of the water tank is blocked, whether the pump capacitance is bad, and whether the relay that controls the pump is closed.

If you still don’t understand, please contact Focuslaser .