User Manual

W H L H I N S T R U C T I O N M A N U A L
18
Troubleshooting
Problem Possible Causes Solution
No sealing
Timer lights off
1. Disconnected power cord
2. Power cord is broken
3. Blown fuse
4. Transformer is broken
1. Check or change plug
2. Replace power cord
3. Replace fuse
4. Replace the transformer
No sealing
Timer lights are on
1. Heating element is broken
2. Poor contact at heating terminal
assembly
1. Replace the heating element
2. Clean, tighten or change the heating terminal
assembly
No sealing
Power light on
Heat indicator off
1. Footswitch malfunction
2. Microswitch malfunction
3. Microswitch out of place
1. Replace footswitch
2. Replace microswitch
3. Adjust microswitch
Burnt PTFE cloth
1. Timer malfunction
2. Timer setting too high
1. Replace timer
2. Decrease timer setting
Broken heating element 1. Worn PTFE adhesive 1. Replace PTFE adhesive
Wrinkled seal
1. Seal time is set too high
2. Cooling (congeal) time is too
short
1. Decrease
2. Increase congealing time
Imperfect seal
1. Worn PTFE cloth
2. Worn silicone rubber
1. Replace PTFE cloth
2. Replace the silicone rubber
Burnt seal 1. Seal time is set too high 1. Decrease seal time
No seal 1. Seal time is set too low 1. Increase seal time
Seal sticking to PTFE cloth
1. Worn or dirty PTFE cloth
2. Worn or dirty silicone rubber
1. Replace or clean PTFE cloth
2. Replace or clean silicone rubber