Crafco EZ 500 Series II, Manual

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EZ 500 Series II Melter Part Manual
Chapter 8 Troubleshooting
©2019 by Crafco, Inc. All Rights Reserved………………...………………………………..……………...Troubleshooting 8-9
8.0.6. Burner Ignition Coil Testing
Step Ignition Coil Test
1 Make sure the burner is off. Open the ignition transformer (located above the blower) to
expose the springs.
2 Check resistance between each of the springs and the ground (exposed metal on the burner).
3 The meter should read less than 2000 ohms. (Take note of the readings, you will use them in
Step 5.)
4 Check resistance between both springs. (Take note of the reading, you will use it in Step 5.)
5 The igniter should be replaced if:
•
The difference between the two springs to ground resistance readings is greater than 20%.
•
Or the spring-to-spring resistance does not read approximately twice the spring to ground.
8.0.7. Bleeding the Burner
Step Bleeding the Diesel Burner
1 Place an oil pan under the machine in front of the burner.
2 Using a 3/8" wrench, loosen the bleeder valve on the fuel pump. Refer to Fig. 8.3 Diesel
Burner Air Settings for bleeder location.
3 Turn the ignition key to the "ON" position, then turn the power toggle switch to the “ON”
position. Fuel should flow out of the bleeder valve. You want the fuel to be clear from any air
bubbles, this may require you to turn the ignition key "OFF" and "ON" a couple of times.
4 Allow burner to cycle itself off 30 seconds.
5 Tighten the bleeder valve.
Table 8-11 Burner Ignition Coil Testing
Table 8-12 Bleeding the Burner