FAILURE |
CAUSES |
MEASUREMENT TO TAKE |
Air Exhaust Temperature too high |
Bad vent condition, Oil lacking etc. |
Check the vent condition and lubricant amount etc. |
Temperature Sensor Failure |
Cable off or PT1OO damaged |
Checking the wiring and PT100 |
Over Pressure |
The pressure too high or the pressure sensor failure |
Check the pressure and the pressure sensor |
Pressure Sensor Failure |
Cable off, Sensor damaged or the cable connected reversed |
Check the wiring and sensor transformer |
Water Lacking |
Water Pressure switch damaged |
Check the water pressure switch |
Phase Lacking |
Power phase lacking or the Contactor terminal damaged |
Check the power and contactors |
Overloaded |
Voltage too low, tubes blocked, Bearing Wear off or other mechanical failure or wrong set data etc. |
Check the set data, Voltage, bearings, tubes and other mechanical systems. |
Unbalance |
Power unbalance, Contactor damaged or the internal open of the motor |
Check the power, contactors and the motor |
Rotor Lock |
Voltage too low, tubes blocked, Bearing Wear off or other mechanical failure or wrong set data etc. |
Check the set data, Voltage, bearings, tubes and other mechanical systems. |
Short Circuit |
Wrong Wiring, Incorrect Data setting etc. |
Checking the wiring and set the data correctly |
Wrong Phase Sequence |
Reversed Phase sequence or phase off |
Check the wiring |
Fan stopped |
Fan damaged, Contactor damaged, no control output |
Check the wiring and control output |
Overload or Rotor locking during starting process |
Host start time set to a value less than the star angel time delay |
Reset the host starting time to be longer than star angel delay + Load delay time |
The main Contactor activate time to time |
The emergency button loose |
Check the wiring |