Carlin Component Testing - Manual (Page 2)

Carlin Ignitor Testing Procedure
This test procedure consists of three tests. The first test should be
the ignitor spark test. The second test is a secondary coil resistance
test. The third test consists of an input current test. The following is a
step by step procedure to perform these tests. It is important that all
three of these tests be performed.
41000 Ignitor Spark Test
1. Turn off the power to the burner/appliance.
2. Disconnect the ignitor wires in the burner junction box.
3. Release the ignitor hold down screws or clips.
4. Swing the ignitor plate fully open.
5. Bend the copper ignitor clips until the clip ends are from 5/8” to ¾” apart (see
figure 1).
6. Connect a test power cord with a switch to the ignitor leads in the burner
junction box.
7. Turn on the test power cord switch to power the ignitor.
8. Check for spark across the ignitor clip ends (see Figure 1).
9. If spark occurs, proceed the secondary coil test below.
10. If spark does not jump the gap, or if the spark jumps intermittently, ignitor is
defective and should be replaced.
11. Turn off power to the ignitor.
41000 Secondary Coil Resistance Test
1. Turn off the power to the burner/appliance.
2. Release the ignitor plate hold down screws or clips.
3. Swing the ignitor plate fully open.
4. Use an ohmmeter to check the resistance from electrode to ground for each of
the electrodes (Figure 2 and 3).
5. The secondary coils are good if the difference between the two readings is less
than 10%.
6. If the difference in the electrode-to-ground resistance is more than 10%, the
secondary coil may be failing. Replace the ignitor.
7. If the difference between electrode-to-ground is within 10%, proceed with the
input current test.
Figure 1