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OUTPUT BOARD RESISTANCE TEST (continued)
Connector for
thermostat TH1
Output diode
modules
D14,D15
Output resistor
R11
B
Doubler circuit
diode bridge
module D3
B
Output diode
modules
D12,D13
TEST PROCEDURE
1. Remove main input power to the CITOTIG 415DC
2. Perform the Discharge procedure
3. Visually check for burned or damaged components. If any components are physically damaged the
input board should be replaced
4. Check the thermostat TH1, connected to the green connector (see picture above), with ohmmeter;
correct value is 0 (zero) ohms (short)
5. Check the Output Resistor R11 using ohmmeter, value shall be 100 ohms +/- 20%
6. Disconnect the four power cables removing the four screws (A)
7. Disconnect the four terminals (B)
8. Check the rectifier bridge D3
9. Follow the below table to perform the remaining tests:
for CITOTIG 415DC
~
+
-
~
W05X1442 used on 415DC
Output Diode modules (D12 – D13 – D14 – D15)
Positive Probe (RED)
Negative Probe (BLACK)
4 (anode)
3 (cathode)
3 (cathode)
4 (anode)
1 (anode)
2 (cathode)
2 (cathode)
1 (anode)
2
1
3
4
2
1
3
4
2
1
3
4
2
1
3
4
Value
0.3V - 0.7V
OPEN
0.3V - 0.7V
OPEN
42
A
A
A
A
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