Troubleshooting - Promax TC-350 Operation Manual

5. TROUBLESHOOTING

5.1 PROBLEMS AND CORRECTIONS
Problem and Corrections - Review installation procedure section to ensure the installation is
correct. If correct, the troubleshooting chart below lists possible problems, causes, corrections,
and reference guide.
Problem
Control panel is under normal
function, but vacuum pump does
not start.
Vacuum pump does not run.
Insufficient vacuum in chamber. Low oil level in vacuum pump.
Insufficient vacuum in bag.
Note : Mostly insufficient
vacuum in bag is due to leakage
of bag, but not the fault of
machine.
Vacuum bag is easily pulled apart
by hand.
Sealing area has some burnt
marks or bubbles appeared.
Chamber Lid does not open.
Machine does not start to vacuum Vacuum valve is sticking
Cause
The KM1, QM1, MCB1, MCB2
protectors are disconnected.
The power supply is not
corresponding with the power
demand indicated on the back of
machine.
Lid silicone rubber damaged.
Bag is leaking.
Sharp corners on wrapped
product puncture the bag.
Bag is too large.
Sealing time (temperature) is too
short (low).
Sealing area stuffed with oil or
meat juice or dirt.
Sealing time (temperature) is too
long (high).
Vent valve is sticking.
19
Correction
Check each part and turn on the
switch, reconnect, if necessary.
Reconnect to correct power
source.
Fill oil, if necessary.
Stop machine immediately. Then
alter the power connection and
reconnect to correct ones.
Replace.
Replace the bag.
Replace the bag and use a thicker
one.
Replace with a smaller one.
Adjust sealing time (temperature)
to be longer (higher).
Clean and remove them.
Adjust sealing time (temperature)
to be shorter (lower).
Apply grease refer to 4.4.1.
Apply grease refer to 4.4.2