There are four types of factors that can cause a "three-phase power failure" in a screw ice water machine, namely: the power supply is not connected, the fuse has blown, the power supply voltage is unstable or the phase sequence is incorrect, and the transformer is damaged. The following is a detailed introduction to the troubleshooting steps and corresponding solutions for everyone
Step: Check the power connection status
First of all, we need to check whether there is a power outage in the workshop and whether the power of the ice water machine is properly plugged in. In such cases, there are usually obvious manifestations. Either other equipment in the workshop cannot operate normally, or the power plug of the screw ice water machine is not inserted firmly. Both of these situations will cause the equipment to not be powered on, which in turn leads to a three-phase power failure.
Solution: Check the power connection lines of the ice water machine in sections to see if there are any open circuit issues. At the same time, check whether the power plug is damaged or aged. If the above problems are found, the fault can be solved simply by repairing the faulty circuit or replacing the plug and wiring with new ones.
Step 2: Check the condition of the fuse
If the current in the workshop is unstable or a short circuit occurs in the circuit, it may cause the fuse to blow, which will also lead to a "three-phase power failure" in the ice water machine.
Solution: Just replace the fuse with a new one.
Step 3: Check for voltage and phase sequence issues
When the refrigeration machine is powered on but this fault code appears, it is most likely caused by these reasons: unstable power supply voltage, with under-voltage or over-voltage situations; Phase loss in the circuit, incorrect phase sequence connection; Or the phase sequence protector malfunctions. All these factors can cause power failures.
Solution: If the voltage is unstable, it is necessary to check whether the transformer and other related components are damaged. If it is a phase sequence issue, the phase sequence can be corrected by swapping any two phase lines. If it is determined that the phase sequence protector is damaged, a new one should be replaced in a timely manner.
Step 4: Check the condition of the transformer
Transformer damage can directly cause faults such as under-voltage and over-voltage in the power supply. Once such a situation occurs, the transformer needs to be inspected and repaired. Overall, "three-phase power supply failures" are basically caused by the above four reasons. If we check step by step in the order from easy to difficult, we can gradually find the root cause of the fault. If the manufacturer encounters such problems, they can first check for power-related issues, such as whether the power plug has aged due to prolonged use, resulting in poor contact and ultimately causing this fault code.
