Specifications

IM 685-2 25
Code 4-1
*Purge Card
Problem*
No purge card or the
purge card timing has
changed from the
original configuration.
a. Make sure the purge card is seated properly.
b. Inspect the purge card and the connector on the relay module for any damage or contaminants.
c. Reset and sequence the relay module.
d. If the fault code reappears, replace the purge card.
e. Reset and sequence the relay module.
f. If the fault code persists, replace the relay module.
Code 4-2
*Wiring
Problem/
Internal Fault*
Pilot (ignition) valve
terminal, main valve,
ignition or Main Valve 2
was on when it should
be off.
WARNING
Electrical Shock Hazard; Fire or Explosion Hazard.
Can cause severe injury, death or property damage.
Remove system power and turn off power supply.
a. Remove system power and turn off fuel supply.
b. Check wiring; correct any errors.
c. inspect Pilot Fuel Valve(s), both places, and connections.
d. Reset and sequence the relay module.
e. If the fault persists, replace the relay module.
Code 4-3
*Flame
Amplifier
Problem*
Flame not sensed,
sensed when it should
be on or off.
a. Check wiring; correct any errors.
b. Make sure the flame amplifier and flame detector are compatible.
c. Remove the flame amplifier and inspect the connections. Reseat the amplifier.
d. Reset and sequence the relay module.
e. If the code reappears, replace the flame amplifier and/or the flame detector.
f. If the fault persists, replace the relay module.
Code 4-4
*Configuration
Jumper
Problem*
The configuration
jumpers differ from the
sample taken at startup.
a. Inspect the jumper connections. Make sure the clipped jumpers were completely removed.
b. Reset and sequence the relay module.
c. If the fault persists, replace the relay module.
Code 5-1
*Preignition
Interlock*
Preignition Interlock
fault.
a. Check wiring and correct any errors.
b. Check Preignition Interlock switches to assure proper functioning.
c. Check fuel valve operation.
d. Reset and sequence the relay module; monitor the Preignition Interlock status.
e. If the fault persists, replace the relay module.
Code 5-2
*High Fire Sw.
or Low Fire
Sw.*
Either High Fire Switch
or Low Fire Switch
failure.
a. Check wiring and correct any errors.
b. Reset and sequence the relay module.
c. Use manual motor potentiometer to drive the motor open and closed. Verify at motor switch that the end
switches are operating properly. Use RUN/TEST switch if manual potentiometer is not available.
d. Reset and sequence the relay module.
e. If the fault persists, replace the relay module.
Code 5-3
*Man-Open
Sw.; Start Sw.
or Control On*
Man-Open Switch, Start
Switch or Control On in
the wrong operational
state.
a. Check wiring and correct any errors.
b. Make sure that the Manual Open Valve Switch, Start Switch and Control are operating properly.
c. Stat Switch held On too long.
d. Reset and sequence the relay module.
e. Reset and sequence the relay module. If the fault persists, replace the relay module (RM7838A1014;
RM7838B1013 or RM7838C1004 only).
Code 6-1
*Internal Faults*
Relay Module self-test
failure.
a. Reset and sequence the relay module.
b. If fault reappears, remove power from the device, reapply power, then reset and sequence the relay mod-
ule.
c. If the fault persists, replace the relay module.
Code 6-2
*Internal Faults*
Relay Module Self-Test
failure.
a. Reset and sequence the relay module.
b. If fault reappears, remove power from the device, reapply power, then reset and sequence the relay mod-
ule.
c. If fault does not repeat on the next cycle, check for electrical noise being copied into the relay module
through the external loads or possibly an electrical grounding issue.
d. If the fault persists, replace the relay module.