4. Common failures and troubleshooting methods
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English
Fault
Reasons
troubleshooting methods
The equipment can’t
work
No connection or bad connection for the power
supply cable
Check the connection of power supply cable
Main power is not open or its switch is closed
Check the switch
Fuse damaged
Check the fuse or replace
Control panel damaged
Check the control panel or replace
The starting switch is not contacted
Adjust the switch to make it contact
No vacuum or low
degree of vacuum
Oil level of the vacuum pump is too low
Add vacuum oil to proper location
The ambient temperature is too low, and the vacuum
oil is frozen
Replace the vacuum oil with appropriate
viscosity
The vacuum pump is damaged
Replace vacuum pump
Leakage of vacuum pump and connecting pipes
Check pumps, connectors, connecting pipes or
replace
Leakage of solenoid valve
Check solenoid valve connector or replace
solenoid valve
The setting working time of vacuum pump is too low
Increase working time for pump properly
Pressure display inaccurate
Set pressure calibration the menu
Vacuum chamber seal seam is not good or
damaged
Check or replace the seals
Sealing can’t be done
Heat seal temperature setting is too low
Increase heat seal time appropriately
Bad contact or damage caused by sealing
transformer
Check the transformer wire or replace
The sealing heating wire is damaged or broken
Check electric wire or replace
Bad contact of sealing power conductor
Check the conductors or replace
Seal parts are not raised
Replace airbag solenoid valve
Bad effect of sealing
Heat seal temperature setting is too low or too high
Reduce or increase heat seal time
appropriately
Foreign substances on the surface of the seals
Wipe and clean foreign substances in the seals
Serious air leakage, heating blocks fit loosely
Check pumps, connectors, connecting pipes or
replace
Electric wire deformation or folding
Check electric wire or replace
Teflon paint cloth damaged
Replace Teflon paint cloth
Bad effect of packing
or air leakage
Vacuum pump time is too low or too high
Increase or decrease pump working time
appropriately
Sealing is not bonded which causes air leakage
Adjust the sealing time
Sharp hard objects, packing bags are too thin
Replace thicker packing bags
Packing small objects with big packing bags
Replace the appropriate packing bag
No gas discharge
after completion of
work
Air discharge solenoid valve not open or damaged
Check air discharge solenoid valve or replace
Control panel damaged
Check control panel or replace
