Table 2-2. Unit Troubleshooting (Continued)
TEST OR INSPECTION
WATER HEATER BURNER FAILS TO IGNITE OR IGNITION IS DELAYED. (Cont)
Check for no connection of cable assembly from transformer to burner.
If cable is not connected, connect cable assembly.
If cable is connected properly, proceed to next step.
Check for proper operation of ignition transformer.
a. Observe for blue spark in sight glass; if no spark is present, replace ignition
transformer as follows:
High voltage is present on this equipment. Do not perform maintenance
with power on.
Death or serious injury may result.
Tag and disconnect two transformer wires from contactor in control
box. Refer to Appendix E, Figure 5.
Disconnect two electrode leads (1) from transformer (7).