13
Note: * The joint between wire and pin should be covered with a shrinkable hose.
* No heating when not installing the tip or else the heating element will be damaged.
5.6.4
Test the heating element
1.
Measure the resistance values between pin 4 and pin1 or pin4 and pin2, between pin5 and pin 1or
pin 2, between pins 3 and pin 1 or pin 2, between pin 3 and pin 4 or pin 5. If they are not ∞, the
heating element and sensor or vibrator switch are touched. This will damage the PCB
2.
Measure the resistance value ‘a’, ‘b’ and ‘c’ (refer to the above form) to confirm that the leads are
not twisted and that the grounding wire is properly connected.
5.7
Replace the fuse
1.
Turn off the power switch and then pull out the fuse plug in the power plug
2.
Open the fuse cover board and take out the broken fuse
3.
Replace a new fuse and put back the fuse cover board in place
