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If ignition control module does not reset, then replace the control. (Internal fault.)
If ignition control module resets, then have qualified electrician check power source
for power quality problems. (Frequency, line noise, line spikes, loose connections, too
small wire gauge.)
Five Times
Rapid On/Off
cycling of the
burner.
Ignition control is identifying a flame sense related
problem. Burner flame failure may occur. Check all
grounds, clean the sensor or check for cracks in
sensor insulator.
NOTES:
(1) The ignition control sends and receives voltages throughout the entire operation sequence. The ignition control’s terminals
should also be checked for delivering proper voltages, in addition to the individual components as indicated by the respective
flash pattern.
(2) The high-limit switch will open or trip for a variety of reasons, such as high gas pressure, low voltage, excessive dust and dirt
build-up within the heater, dirty fan assembly, fan is not tightened onto motor shaft, and obstructions in air inlets or discharge
outlet of heater.
Four Times
Poor flame
sense.
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