| 1 | Machine does not work , three phase power indicating LEDs are not lighting up. | 1.No AC supply. 2.MCB tripped. 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 not moving. | 1.Conveyor speed set to0. 2.Conveyor motor stalling. 3.Defective conveyor motor. 4.Wear &tear ofcarbon brush. 5.Conveyor chain disengaged fromthe sprockets. 6. Conveyor chain breakage. 7.Defective conveyor driver sprocket. 8.Defective board for conveyor drive. 9.Blownout ofFUSE inthe board. 10.Defective IRF740/optocoupler in the board. | 1.Increase the conveyor speed. 2.Reduce loadonthe conveyor. Install the machine with a slope towards the 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 of sprockets andchain rails. | 1.Increase the tension byadjusting the conveyor tension adjusters. 2.Align the sprockets andchain rails. |
| 4 | Air blower is not working | 1.Fanswitch is off. 2.Phase sequence RYBis not in sequence. 3.Defective blower motor. 4.No supply at motorend. | 1.Switch onthe fan. 2.Interchange anyofthe two phases.(Check Phasesequence indicator LED's andPhase sequence OK indicator). 3.Replace the motor. 4.Check supply voltages at the motor |
| | 5.Defective contactor or relay. | end. 5.Replace the defective. |
| 5. | Blower motor works , butthe air turbulence fandoes notrotate freely | 1.Shaft fitting Allen screw loose. | (a)Check thefanshaft assembly. (b)Ensure free rotation ofthe shaft and a little axial play. (c) Refit the FanAssembly 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 for heaters. 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 or relay dueto 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 fan is not working orrotating in wrongdirection. 2.Heaters are not working. | 1.Refer complaint troubleshooting Case 4. 2.Identify the defective heater and replace. |
| 10. | Abnormalsound andvibration | 1.Air turbulence fan loose. 2.FanMotor Bearing failure. 3.Machine is not installed onalevel 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 | 1.Defective IRF740in the PCB | 1.Replace PCBor IRF740in the PCB |
| speed | | |
| 12. | Shows different Temperature values | 1.Defective 18VCT 2.EMIproblems | 1.Replace 18VCT 2.Make proper FRC& other cable routing. |
| 13. | Garbage values/ Display black out whe heaters are turned on | 1.EMI generated through ncontactor arcing. .. | 1.Replace contactor connections for loose terminals. 2.Connect a 220ohmresistor anda 104/1kv capacitor inseries across A1 and A2of contactor. 3. Replace Contactor. |
