PAGE 3 OF 9
0421 IH-1254
MIL
1
2
3
4
5
6
TIMER SETTING (SEC.)
2.5
3
3.5
4
4.5
5
TROUBLESHOOTING
RECOMMENDED TIMER SETTINGS
OPERATING ISSUE
CAUSES
RECOMMENDATIONS
Not sealing and power
lamp does not turn on.
Disconnected plug.
Power Cord is broken.
Transformer is bad.
No microswitch contact.
Check or change the plug.
Replace or repair the cord.
Replace the transformer.
Adjust the microswitch lever or
microswitch position.
Not sealing and power
lamp and sealing
light turn on.
Heating element may be broken.
Spring hook or mounting spring
is loose or has poor contact.
Terminals of the heating element
do not make good contact.
Replace the heating element.
Clean or tighten the spring hook
connection.
Clean the terminals and
adjust if needed.
Not sealing and power
lamp is on, but sealing
light does not turn on.
Microswitch not detected.
Defective microswitch.
Adjust the microswitch lever or
microswitch position.
Replace microswitch
Teflon
®
cloth is burnt.
Heating time too long.
Timer malfunction.
Decrease the timer setting.
Replace timer or relay.
Heating element broken.
Worn Teflon
®
Tape (under the
element).
Replace the Teflon
®
tape.
Seal is wrinkled or
warped.
Sealing timer is set too high.
Not enough cooling time.
Lower the timer setting. Continue
pressing the sealing arm 1-2 seconds
after the sealing light turns off.
Imperfect sealing.
Worn Teflon
®
cloth.
Worn silicon rubber.
Replace the Teflon
®
cloth.
Replace silicon rubber.
Broken seal.
Sealing timer is set too high.
Decrease timer setting.
Incomplete seal.
Sealing time too short.
Increase sealing time.
Seal sticking.
Residue on the Teflon
®
cloth.
Residue on the pressure pad.
Clean the Teflon
®
cover.
Clean the pressure pad.
1-800-295-5510
uline.com
