Etneo 202D, Operation Manual

12 

5.6.2

Checking the heating element 
 

Pull  out  the  plug  and  measure  the  resistance  value  between  the  pins  of  the  connecting  plug  when  the 
heating element cooling down to the room temperature. 
 

1)

If the values of ‘a’ and ‘b’ are different from the values in the following table, replace the heating 

element or sensor or cord assembly. Refer to the following steps 

2)

If the value of ‘c’ is over the below value, remove lightly the oxidation in the joint part of the tip and 

the heat element with sandpaper or steel wool 

Note:   * When checking b and c items in the table, the soldering iron must be equipped with tip. 

* The pin’s sequence above picture is same with the socket of soldering station and in the 
socket of the soldering iron handle after disconnecting the handle. Please find the 
corresponding pins when check the sensor or the heating element of the handle. 

5.6.3

Replace the heating element 

1.

Cut off the strap connecting the heating element and the handle cord and pull out the sensor’s 
pin and desolder each wire of handle cord from heating element 

2.

Remove the broken heating element and replace a new one 

3.

Solder each wire of handle cord to its pin according to connection way of desoldering. Connect 
black and white wires to two heating pins of the heating element and connect the grounding 
wire (shield cord) to the grounding pin 

4.

Put the sensor pin on the red wire into the sensor pin jack of the heating element 

5.

After replacing the heating element, test heating element according to the following “5.5.4 test 
the heating element” and install it after confirming it is well 

6.

Tie up the heating element and the handle cord with the strap 

7.

Put the heating element into handle according to the opposite order of disassembling, and the 
heating element must be put into bottom. The bulge of the sensor pin jack should be put into 
handle’s flute 

8.

Screw down the screw cap at the end of the handle 

9.

Install tip, the sensor pin jack part must be put into the handle’s flute 
 

a.                                 

Between pins 4&5 (Heating Element) 

Under 1Ω(Normal) 

b.          

Between pins 1&2 (Sensor) 

Under 10Ω(Normal) 

c.  Between pins 1& Tip 

Under  2Ω 

1

6

7

5

2

4

3

Check the heating element 

Check the sensor