User guide

Four Times

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.

Flame Sense Degradation. See flame sensor

related problems in three time flash pattern.

(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.