Solution for abnormal phenomenon detection: If the motor does not rotate, the indicator light (or digital display) of the electrical control box will light up, and check whether the internal and external plug connections of the electrical box are loose or disconnected. 2. The indicator light (or digital display) of the electrical control box is not on. 3. Confirm that there are no abnormalities in '1' and '2'. 4. The frequency converter displays' O.U. 'due to high-frequency interference. 5. Inverter protection function display. 1. Reconnect the plug and connect the disconnected wires. 2. Update the fuse or confirm that there are no abnormalities in the power supply. 3. Update the circuit board or electrical control box. 4. Connect the grounding wire or change the work location. 5. Exclude according to the frequency converter manual P33. The bath pot does not heat up. 1. The bath pot has countless displays. 2. The 'OUT' or 'ON' green indicator light in the temperature controller is on and not heating. 3. When the bath temperature is lower than the set temperature, the 'OUT' or 'ON' green indicator light in the temperature controller does not light up. 4. The temperature controller displays' OVER 'or' 000 '. 1. Check the power supply for 220V. 2. Replace the heating coil. Replace the solid-state relay or relay board. 3. Replace the temperature controller. 4. Check the wiring of the probe or update the probe. When the bath temperature is higher than the set temperature, the green indicator light 'OUT' or 'ON' in the temperature controller will not go out. (1-2 ℃ is normal) 2. The 'OUT' or 'ON' green indicator light in the temperature controller has turned off, and heating is still continuing. 3. The digital display bath temperature is much lower than the actual bath temperature. 1. Replace the temperature controller. 2. Replace the solid-state relay or relay board. 3. Replace the probe or temperature controller. Vacuum cannot be drawn. 1. There is solvent in the container, which is limited by the pressure of the saturated injector. 2. The capacity of the vacuum oil pump has decreased. 3. Vacuum hose, loose joint, vacuum gauge leakage. 4. Magnetic particle flaw detector is used for pressure holding test. In the absence of any solvent, all external butterfly valves and pipelines are closed, and the pressure is held for one minute. The vacuum gauge pointer should not move, indicating good air tightness. Otherwise, see on the right. 5. There are debris inside the discharge valve and pressure control valve. 6. The glass wool sandwich panel is damaged. 1. Empty the solvent and conduct an empty bottle test. 2. Vacuum oil pump oil (water) change, cleaning and maintenance. 3. Inspect and eliminate each section along the vacuum pipeline. 4. ① Reinstall, clean the grinding edges of the glass wool sandwich panel, apply vacuum silicone grease, align and tighten the flange openings. ② Update the failed sealing ring. 5. Cleaning. 6. Update or repair. 1. Check if the speed generator coil is open circuited, and use a multimeter to measure the normal resistance of the seven pin plug '1' and '2' pins (with the plug aligned with both sides of the positive slot) at around 400 Ω. 2. The generator coil is short circuited to the casing. 3. The magnetic ring of the generator is not rotating. 4. The magnetic ring of the generator is broken. 1. Generator circuit breaker, update coil or connect circuit breaker point. 2. Release the generator cover at the rear of the motor to eliminate the short circuit. 3. Tighten the M5 nut. 4. Update the magnetic ring of the generator. Motor heating: 1. Motor temperature rise (shell temperature - room temperature), △ T ≤ 40 ℃ is normal. 2. △ T>40 ℃ should be treated according to the right method. 3. If the flat display flashes, it indicates that the motor current is overloaded. Follow method 2 on the right to handle it. 1. No need to handle, can continue to be used. 2. ① Reduce the mixing blades to lighten the load. ② Avoid rotating resonance points. ③ Increase the speed appropriately and use medium speed. ④ Eliminate abnormal resistance in the mechanical part. ⑤ Perform maintenance on the sealed and lubricated parts.