FULTON PulseHW Series Installation, Operation And Maintenance Manual page 79

Purge fan switch is off
Fault 57
when it should be on.
*Purge Fan Sw. Off*
Combustion pressure
Fault 58 switch failure and flame
rod failure.
Fault 105-127 Call Service.
6. Troubleshooting – RM7865C without display
a) When the control has faulted out, you can identify the fault by counting the number of
blinks the "LED" displays.
b) 6 Blinks - Unit has exceeded 15 cycles per hour.
5 Blinks - High fire switch fault.
4 Blinks - Purge fan switch fault.
3 Blinks - Blocked intake switch fault.
2 Blinks - Flame combustion switch fault.
1 Blink - Other fault
7. Honeywell RM7865C
JR1
ON
ON
OFF
OFF
OFF
1. Inspect the Purge Fan Switch terminal 18 and connections.
Assure that the switch is functioning correctly.
2. Reset and sequence the 7865.
3. If the fault persists, replace the relay module.
1. Check for proper incoming gas pressure.
2. Check flame rod and pressure switch condition and
connections.
3. Check incoming power to 7865 sub-base at terminal 20.
4. Check for voltage on the flame rod amplifier.
5. Reset control.
6. If fault persists replace 7865 flame programmer.
1. Replace 7865 controller.
Jumpers
JR2 JR3
For On/Off Application, RM7865A
ON ON
Retrofit
For On/Off Application, Flame Rod,
OFF ON
RM 7865B Retrofit
ON ON Modulated, No Flame Rod
Modulated, Flame Rod RM7865C
OFF ON
Standard
OFF OFF Modulated, Flame Rod
Fulton Heating Solutions, Inc. -- PHW Manual -- 2010-0713
Page 79
Result of Clipping Jumper
4 Attempts
4 Attempts
4 Attempts
4 Attempts
1 Attempt