ADC AD-310 service manual

c.Three Visual Checks

1)Does the DSI ignitor/flame-probe assembly start sparking? If not, refer to the FIRST VISUAL CHECK on page 37.

2)Does the main burner ignite?

If not, refer to the SECOND VISUAL CHECK on page 38.

3)Does the main burner remain lit after ignition has been established ("FLAME-OUT")? If not, refer to the THIRD VISUAL CHECK on page 39.

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