Henny Penny PFG-690, Technical Manual, Page: 44 / 106

Model 690
2-26
2-28. IGNITION MODULES Sends 24 volts to the ignitors and gas control valve.
LED Indication
3 different modules are in the field. The White Rogers and
Fenwall modules have a red LED, and the Robertshaw modules
have a green LED. These LEDs help to identify a failure.
For White Rogers & Fenwall modules, when the control calls
for heat, the LED flashes, then goes out, indicating control is
functional. If the LED continues to flash, the module did not
sense a pilot flame. If LED stays on continuously, an internal
fault has been detected, and the module should be replaced.
Robertshaw
For Robertshaw, when the control calls for heat, the LED will
be on continuously, indicating the control is functional. If LED
flashes, module did not sense a pilot flame. If LED goes out
while the control is calling for heat, an internal fault has been
Replacement detected, and the module should be replaced.
1. Remove electrical power supplied to the unit.
To avoid electrical shock or property damage, move the
power switch to OFF and disconnect main circuit
breaker, or unplug cord at wall receptacle.
2. Remove the control panel as discussed in section 2-7.
3. Remove the condensation drain pan.
4. Using a Phillips head screwdriver, remove the screws
securing the module cover and remove the cover.
5. Label and remove the wires from the module.
6. Using a 3/8” socket and Phillips head screwdriver, remove
nuts and screws securing module and remove it from unit.
7. Replace with module in reverse order.
White Rogers
Fenwall
LED
LED
Sept. 2007