Hot Dawg
®
Troubleshooting Guide18
Four Flashes – Unit Doesn’t Spark
The information below is related to situations where the unit is in lockout from failed
ignition or ame loss and the unit DOES NOT SPARK:
Unit Sequence:
• Green light on, call for heat
• Power exhauster cycles on, starts pre-purge
• 24 VAC power present through pressure switch, limits and to valve
• No spark at igniter. RAW gas is going through orices for approximately six
seconds during this cycle. Unit then cycles off, and there is no yellow ame
sense light.
• Will cycle FIVE times in this manner. Then, green light will ash four times,
power exhauster will cycle off and the fan motor does not turn on.
Possible Causes:
• Loose wires
– Wire off igniter
• Defective or damaged igniter
– Examine, verify and replace if needed
• Defective board
– Not sending voltage to the igniter
– For more information on xing or replacing a defective board,
reference page 23.
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