| 1 | Machine doesnot work , three phase power indicating LEDs are not lighting up. | 1.No AC supply. 2.MCBtripped. 3.No output fromCT18V. | 1.Restore ACsupply. 2.Check the wiringfor anyshort circuit. Ifsatisfactory, reset the MCB. 3.Check andreplace if defective. |
| 2 | Conveyor is notmoving. | 1.Conveyor speedset to0. 2.Conveyor motor stalling. 3.Defective conveyor motor. 4.Wear &tear ofcarbon brush. 5.Conveyor chaindisengaged fromthe sprockets. 6. Conveyor chain breakage. 7.Defective conveyor driver sprocket. 8.Defective board for conveyor drive. 9.Blownout ofFUSEin the board. 10.Defective IRF740/optocoupler in the board. | 1.Increase the conveyor speed. 2.Reduce load onthe conveyor. Install the machine with a slope towardsthe direction ofthe conveyor movements to increase the loadcarrying capacity of the conveyor. Use leveling screws to attain this. 3.Rectify/replace the conveyor motor. 4.Clean & reinsert it. 5.Engage the conveyor chain with the sprocket. 6.Replace bothchain together to avoid the mismatching ofchains. 7.Replace the conveyor driver sprockets. 8.Replace the boardfor conveyor drive. 9.Replace the FUSE. 10.Replace it. |
| 3 | Conveyor chain slips fromthe guides. | 1.Lower conveyor tension. 2.Misalignment ofsprockets andchainrails. | 1.Increase the tension byadjusting the conveyor tension adjusters. 2.Alignthe sprockets andchain rails. |
| 4 | Air blower is not working | 1.Fanswitch is off. 2.Phase sequence RYBis not insequence. 3.Defective blower motor. 4.No supply at motor end. 5.Defective contactor or relay. | 1.Switch onthe fan. 2.Interchange anyofthe two phases.(Check Phasesequence indicator LED's andPhase sequence OKindicator). 3.Replace the motor. 4.Check supply voltages at the motor end. 5.Replace the defective. |
| 5. | Blower motorworks , butthe air turbulence fandoesnotrotate | 1.Shaft fitting Allen screw loose. | (a)Check the fanshaft assembly. (b)Ensure free rotation ofthe shaft |
| freely | | anda little axial play.(c)Refit the Fan Assembly Mounting Plate. |
| 6. | Insufficient shrinking | 1.Heater switch is off. 2.Low temperature setting. 3.Temperature is not building up. | 1.Switch onthe heater. 2.Increase the temperature setting. 3.Refer to complaint no.7 |
| 7. | Temperature is not building up. | 1.Loose connection of heaters. 2.Heater failure. 3.Low temperature setting. 4.Defective contactor for heaters/relay forheaters. 5.Defective PT100. | 1.Make proper connections. 2.Replace the defective heater. 3.Increase temperature setting. 4.Replace the relay fromthe board/ replace the contactor. 5.Replace it. |
| 8 | Excessive Shrinking | 1.High temperature setting. 2.Low conveyor speed. 3.Defective Temperature Sensor (PT100). 4.Defective Heater Contactor orrelay due to contact welding. | 1.Reduce the temperature setting. 2.Increase the conveyor speed. 3.Replace the defective part. 4.Replace the contactor for heater. |
| 9. | Shrinking is not uniform | 1.Air turbulence fanis not working orrotating in wrong direction. 2.Heaters are not working. | 1.Refer complaint troubleshooting Case 4. 2.Identify the defective heater and replace. |
| 10. | Abnormal sound andvibration | 1.Air turbulence fanloose. 2.FanMotor Bearing failure. 3.Machine is not installed on alevel surface. | 1.Tighten the nut with which the Air Turbulence Fanis attached tothe blower drive shaft. 2.Replace the defective bearing. 3.Level the machine using the leveling screws. |
| 11. | Conveyor is Movingat constant speed | 1.Defective IRF740 in the PCB. | 1.Replace PCBor IRF740 in the PCB. |
| 12. | Showsdifferent Temperature values | 1.Defective 18VCT. 2.EMIproblems. | 1.Replace 18VCT. 2.Make proper FRC& othercable routing. |
| 13. | Garbage values/ Display black out whenheaters ar turnedon.. | 1.EMI generated through econtactor arcing. | 1.Replace contactor connections for loose terminals. 2.Connect a 220ohmresistor anda 104/1kv capacitor inseries across A1 andA2of contactor. 3. Replace Contactor. |
