Carlin Component Testing User Manual

Component Testing

Carlin Combustion Technology, Inc.
70 Maple Street
East Longmeadow, MA 01028
Tech Service Hotline: [phone]

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.

Figure 1

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 2 Figure 3

41000 Input Current 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 or springs until the clip ends are ½” apart.

6. Set a multimeter to read AC milliamps.

7. Using a test power cord with a switch, wire the ignitor blue lead to one of the

multimeter leads. Wire the other lead of the multimeter to the hot side of the
test cord. Wire the white ignitor wire to the neutral side of the test cord.
(Figure 4)

8. Insure the multimeter is set for AC milliamps and turn on the test power cord

switch to power the ignitor. If there is no spark, replace the ignitor.

9. Monitor the input current with the multimeter set on AC milliamps for 5

minutes.

10. If at any time the reading drops below 300 milliamps AC, the ignitor should be

replaced.

11. Turn off the power to the ignitor.

12. Remove the power test cord.

13. Readjust ignitor clip spacing (1 inch ± 1/8 inch).

14. Wire the ignitor in its original condition (per burner wiring diagram).

15. Replace all components to normal condition.

Figure 4

Oil

Carlin U – Residential Oil Burners – Page 70

coil is normal by measuring the resis-

tance across the coil.

between the

bottom two

Valves

Carlin SVC-10FF

Application tips

1. Carlin solenoid oil safety shut-off
valves help to provide years of safe,
effi cient oil burner performance
while adding reliability to the burner
and oil delivery system.

2. Carlin’s SVC oil valves are direct-act­ing, two-way, normally-closed. Use
on single or two-pipe oil systems to
isolate the fuel pump, preventing the
possibility of oil tank siphoning.

3. Carefully review the burner instruc­tion manual when applying to en­sure the oil valve is correctly wired
and the burner fuel lines are cor­rectly installed.

Field testing oil valves

Always disconnect power source

before wiring to avoid electrical
shock or damage to electrical com­ponents.

Checking SVC-10FF coil resistance

• You can determine whether the oil valve
coil is normal by measuring the resis­tance across the coil.

• Disconnect power to the burner. Then
disconnect one of the oil valve wires in
the junction box.

• Measure the resistance from one coil
wire to the other. If the coil is good, the
resistance should be between 494 and
526 ohms. If not, replace the oil valve.

Check A2VA-3006 oil valve coil resistance

• You can determine whether the oil valve
coil is normal by measuring the resis­tance across the coil.

• Disconnect power to the burner. Then
remove the power lead to the A2VA-3006

coil.

• Measure
the resistance

between the

bottom two

terminals
of the
coil. The

resistance

should be be-

tween 350 and

550 ohms. If not,

replace the oil valve.

Carlin U – Residential Oil Burners – Page 70