7
Troubleshooting
Problem
Causes and Solution
The seal is not good.
Lengthen the sealing time if it is not tight enough. Shorten the sealing
time if the seal is melted or if the melted seal is creased by not being
pressed tightly.
The seal is wrinkled.
1. The problem may be overheating. In this case, shorten the
sealing time.
2.
The problem may be insufficient time for cooling. In this case,
lengthen the cooling time.
The temperature rises when working
for some time.
It is normal that the temperature of the machine rises because the
unit absorbs heat during operation. Shorten the sealing time slightly
to balance the heat.
The power lamp does not light and
the sealer does not work.
Check if the power switch is on and if the fuse is damaged.
Maintenance
damaged because of the short-circuiting.
REPLACEMENT OF THE POLYMER CLOTH
Turn off sealer and unplug from the wall. Remove the screws and the plates above the polymer cloth, loosen
the shaft of the polymer cloth roll, pull out the cloth and cut out the burned part. Reassemble the plates and
screws, tighten the roll shaft. No wrinkles are allowed in the polymer cloth, otherwise the seal quality will be
affected.
REPLACEMENT OF THE MICRO-SWITCH
Turn off sealer and unplug from the wall. There is one micro-switch at the side of the machine head. It must be
replaced when it is damaged. The adjustment of the pressing pole for micro-switch are as follows:
•
Put 1mm thick carton between the upper and lower and lower pressing arms, check if the micro-switch is
pressed and if there is a “click” from the switch.
•
If it is not pressed, adjust down the pressing pole or tighten the nut until the switch is pressed 1-2mm down
when it works.
•
Always keep the sealing surface clean. Otherwise, the remains in the sealing surface will shorten the life of
the heater and the life of the polymer cloth.
•
When working, never try to clean the sealing surface with wet cloth.
• After long time usage, the rubber in the upper pressing arm must be checked if it is still flat and straight.
Otherwise, the seal quality will be affected.
•
Often add lubricating oil into the moving parts.
•
All parts in the machine should not be disassembled regularly.
