| 1 | Machine doesnot work. | 1.NoAC supply. 2.MCB tripped. 3.Nooutput fromCT18V. | 1.Restore ACsupply. 2.Check the wiring for anyshort circuit. Ifsatisfactory, reset the MCBor replace the MCB. 3.Check andreplace if defective. |
| 2 | Conveyor is not moving. | 1.Conveyor speed set to 0. 2.Conveyor motor stalling. 3.Defective conveyor motor. 4.Wear& tear of carbonbrush. 5.Conveyor chain disengaged fromthe sprockets. 6. Conveyor chain breakage. 7.Defective conveyor driver sprocket. 8.Defective boardfor conveyor drive. 9. Blownoutof FUSEin 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 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 of chains. 7.Replace the conveyor driver sprockets. 8.Replace the board forconveyor drive. 9.Replace the FUSE. 10.Replace it. |
| 3 | Conveyor chainslips fromtheguides. | 1.Lower conveyor tension. 2.Misalignment of sprockets andchain rails. | 1.Increase the tension by adjusting the conveyor tension adjusters. 2.Align the sprockets andchainrails. |
| 4 | Airblower is not working | 1.Fan switch is off. 2.Phase sequence RYBis not in sequence. 3.Defective blower motor/No supply at motor end. 4.Defective contactor or relay | 1.Switch onthe fan. 2.Interchange anyofthe two phases.(Check Phasesequence indicator LED's and Phase sequence OK indicator). 3.Check supply voltages at the motor end &replace if defective. 4.Replace the defective. |
| 5. | Blower motor works ,but the air turbulence fandoes not rotate freely | 1.Shaft fitting Allen screw loose. | (a)Check the fanshaft assembly. (b)Ensure free rotation ofthe shaftand 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 tocomplaint no.7 |
| 7. | Temperature is not building up. | 1.Loose connection ofheaters. 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 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 or rotating in wrong direction. 2.Heaters are notworking. | 1.Refer complaint troubleshooting Case 4. 2.Identify the defective heater and replace. |
| 10. | Abnormal sound andvibration | 1.Air turbulence fanloose. 2.Fan Motor Bearing failure. 3.Machine is not installed ona level surface. | 1.Tighten the nut withwhich the Air Turbulence Fanis attached to the blower drive shaft. 2.Replace the defective bearing. 3.Level the machineusing the leveling screws. |
| 11. | Conveyor is moving at constant speed | 1.Defective IRF740in the conveyor drive board. | 1.Replace it. |
| 12. | Showsdifferent Temperature values | 1.Defective 18VCT. 2.EMI. 3.Open wires. | 1.Replace 18VCT 2.Make proper FRC&other cable routing. 3.Check andmake proper connections. |
| 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 220ohm resistor anda 104/1kv capacitor inseries across A1 andA2of contactor. 3. Replace Contactor. |
