Robin L sealer RevA19 17-01-19
FAULT TRACING TABLE
FAULT
CAUSE
ACTION
Wires burning out
.
Wires shorting on frame.
Worn insulating strips.
Excessive heat setting used.
Faulty simulator.
Faulty contactor, wires heat
as soon as m/c is turned on.
Replace faulty items.
One wire continually
breaking at cross-
over corner.
Poor earth on the wire that
does NOT break.
Clean arm surface under
BOTH earth screws.
No heat on wire with
power "ON" light
healthy.
.
Mcb tripped out.
Broken supply wire.
Bad earth termination.
Heat "ON" switch not
triggering.
Faulty contactor.
Faulty transformer.
Faulty simulator.
Replace.
Replace.
Check, ensure the wires
are clean and properly
clamped.
Adjust actuating screw
or replace switch.
Check coil. Manually
depress coil with
screwdriver. If centre
does not move, change
contactor.
Check and replace if
necessary.
Check and replace if
necessary.
Light dims when
operating machine.
Poor neutral return.
Check supply neutral.
Poor connection in
supply plug or terminal
block.
Fuse blows in
supply plug.
High resistance in earth
return- broken earth wire.
Seal wire or clamp screw
shorting on arm.
Insulation strip missing.
Supply wire bare and
shorting to frame. Short
circuit in control console.
See also “Wires burning
out”.
Look for break in wire.
Look for burn marks.
