4.9.6 Ignition Transformer
To ignite gas by repeatedly discharging a high voltage spark to the main burner until gas ignites.
Failure Event
1.
Unable to ignite during the ignition process.
2.
Produces multiple unsuccessful attempts to ignite.
Effects
1.
The unit cannot ignite during the ignition process and “E003” or “E004” error codes will display.
2.
Durability of the igniter wears down.
Diagnostic
1.
Visual inspection: Connection and/or breakage of wires.
2.
Voltage check: Check range of voltage shown below.
Color/Number of wires
On : AC 97 ~ 138 V
Off : 0 V
Input Voltage Output Voltage Output Current
120 V, 60 Hz
20 KV
±
10mA
±
2mA
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