| 1 | Machine does not work. | 1.NoAC supply. 2.MCB tripped. 3.Nooutput fromCT18V. | 1.Restore ACsupply. 2.Check the wiring for anyshort circuit. Ifsatisfactory, reset the MCBorreplace the MCB. 3.Check andreplace if defective. |
| 2 | Conveyor is not moving. | 1.Conveyor speedset to 0. 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 forconveyor drive. 9.Blown out ofFUSE inthe board. 10.Defective IRF740/optocoupler inthe board. | 1.Increase the conveyor speed. 2.Reduce loadonthe conveyor. Install the machine with aslope towards the direction ofthe conveyor movements to increase the load carrying 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 withthe sprocket. 6.Replace bothchaintogether to avoid the mismatching ofchains. 7.Replace theconveyor driver sprockets. 8.Replace the board forconveyor drive. 9.Replace theFUSE. 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.Align the sprockets andchain rails. |
| 4 | Air blower is not working | 1.Fanswitch is off. 2.Phase sequence RYBis notin sequence. 3.Defective blower motor/No supply at motorend. | 1.Switch onthe fan. 2.Interchange anyofthe two phases.(Check Phase sequence indicator LED's andPhase sequence OK indicator). 3.Check supply voltages at the motor end& replace if defective. |
| 5. | Blower motor works , butthe air turbulence fandoes notrotate freely | 1.Shaft fittingAllen screw loose. | (a)Check the fanshaft assembly. (b)Ensure free rotation of the shaft and alittle axial play. (c)Refit theFanAssembly 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 ofheaters. 2.Heater failure. 3.Low temperature setting. 4.Defective contactor for heaters/relay for heaters. 5.Defective PT100. | 1.Make proper connections. 2.Replace thedefective heater. 3.Increase temperature setting. 4.Replace the relay fromthe board/ replace thecontactor. 5.Replace it. |
| 8 | Excessive Shrinking | 1.Hightemperature setting. 2.Low conveyor speed. 3.Defective Temperature Sensor (PT100). 4.Defective Heater Contactor dueto contact welding. | 1.Reduce the temperature setting. 2.Increase the conveyor speed. 3.Replace thedefective part. 4.Replace thecontactor forheater. |
| 9. | Shrinking is not uniform | 1.Air turbulence fan is not working or rotatingin wrong direction. 2.Heaters are not working. | 1.Refer complaint troubleshooting Case4. 2.Identify the defective heater and replace. |
| 10. | Abnormalsound andvibration | 1.Air turbulence fan loose. 2.FanMotor Bearing failure. 3.Machine is notinstalled ona level surface. | 1.Tighten the nut with which the Air Turbulence Fanis attached to the blower drive shaft. 2.Replace thedefective bearing. 3.Level themachine usingthe leveling screws. |
| 11. | Conveyor is moving at constant speed | 1.Defective IRF740 in the conveyor drive board. | 1.Replace it. |
| 12. | Shows different Temperature values | 1.Defective 18V CT. 2.EMI. 3.Open wires. | 1.Replace 18VCT 2.Make proper FRC& other cable routing. 3.Check andmake proper connections. |
| 13. | Garbage values or Display black out whe heaters are turned on. | 1.EMI generated through ncontactor arcing. . | 1.Replace contactor connections for looseterminals. 2.Connect a 220ohm resistor anda 104/1kv capacitor in series across A1 andA2ofcontactor. 3.Replace Contactor. |
