Manual

25
Four Times
If ignition control does not reset, then replace it. (Internal board fault.) Have qualified electrician check power source for power quality problems. (Frequency, line noise, or line spikes.)
Five Times Rapid On/Off Cycling of the Burner.
See flame sensor related problems in “Three Time” flash pattern.
Six Times
The heater will continue to operate as normal. This flash pattern
identifies that flame sense current is low and that flame failure or improper operation can occur at any time.
(1) The ignition control module sends and receives voltages throughout the entire operation sequence. The module
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.