User Manual

20
Troubleshooting
Problem Possible Causes Solution
No sealing or power
Sealing jaws cannot activate
1. Disconnected power cord
2. Power cord is broken
3. Blown fuse
4. On/Off switch worn out
5. Transformer worn out
1. Check or change plug
2. Replace power cord (Part#PWC-WH)
3. Replace fuse
4. Replace on/off switch (Part #WHA-28)
5. Replace the transformer (Part#TRNS-model#)
No sealing
On/Off switch light is on
Sealing light on
1. Heating element is broken
2. Poor contact at mounting spring
3. Terminals of heating element do
not make good contact
1. Replace the heating element and PTFE adhesive
under the element
2. Clean, tighten or change mounting spring
3. Clean terminals and adjust if necessary
No sealing
On/Off switch light is on
Sealing light off
1. Microswitch not activated
2. Microswitch worn out
1. Adjust microswitch lever of microswitch
position
2. Replace microswitch
No sealing
Sealing jaws remain closed
1. Solenoid worn out 1. Replace solenoid (Part#Solenoid-WH)
Auto mode is fine
Manual mode does not work
1. Footswitch worn out 1. Replace footswitch (Part#FS-WH)
Burnt PTFE cloth
1. Timer malfunction
2. Timer setting too high
1. Replace timer
2. Decrease timer setting
Broken heating element 1. Worn bottom PTFE adhesive 1. Replace bottom 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 adhesive
1. Worn or dirty PTFE cloth
2. Worn or dirty silicone rubber
1. Replace or clean PTFE cloth
2. Replace or clean silicone rubber