RM7800L1087; RM7840G1022,L1075; EC7840L1014 RELAY MODULES WITH VALVE PROVING
66-1162—2
24
Code 3-2
*Running/
Interlock On
During
Standby*
Lockout Interlock
powered at improper
point in sequence or On
in Standby.
1.
Check wiring to make sure that the Lockout Interlocks are connected properly
between terminals 6 and 7. Correct any errors.
2.
Reset and sequence the relay module.
3.
If the fault persists, measure the voltage between terminal 6 and G (ground),
then between terminal 7 and G. If there is line voltage at terminal 6 when the
controller is off, the controller switch may be bad or is jumpered.
4.
If steps 1 through 3 are correct and there is line voltage at terminal 7 when the
controller is closed and the fault persists, check for a welded or jumpered
Running Interlock or Airflow Switch. Correct any errors.
5.
If steps 1 through 4 are correct and the fault persists, replace the relay module.
Code 3-3
*VPS in
Improper State*
VPS (Valve Proving
Switch) in wrong state
during VPS Test.
1.
Check wiring, making sure upstream valve is connected to terminal 9 and
downstream valve is connected to terminal 17.
2.
Conduct Valve Seat leakage test using a manometer.
3.
Reset and sequence the relay module; if fault repeats, test VPS (connected to
terminal 16) is functioning properly; replace if necessary.
4.
Reset and sequence the relay module.
5.
If fault persists, replace the relay module.
Code 4-1
*Purge Card
Problem*
No purge card or the
purge card timing has
changed from the
original configuration.
1.
Make sure the purge card is seated properly.
2.
Inspect the purge card and the connector on the relay module for any damage
or contaminants.
3.
Reset and sequence the relay module.
4.
If the fault code reappears, replace the purge card.
5.
Reset and sequence the relay module.
6.
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.
1.
Remove system power and turn off fuel supply.
2.
Check wiring; correct any errors.
3.
Inspect Pilot Fuel Valve(s), both places, and connections.
4.
Reset and sequence the relay module.
5.
If the fault persists, replace the relay module.
Code 4-3
*Flame
Amplifier
Problem*
Flame not sensed, or
sensed when it should
be on or off.
1.
Check wiring; correct any errors.
2.
Make sure the flame amplifier and flame detector are compatible.
3.
Remove the flame amplifier and inspect the connections. Reseat the amplifier.
4.
Reset and sequence the relay module.
5.
If the code reappears, replace the flame amplifier and/or the flame detector.
6.
If the fault persists, replace the relay module.
Code 4-4
*Configuration
Jumper
Problem*
The configuration
jumpers differ from the
sample taken at startup.
1.
Inspect the jumper connections. Make sure the clipped jumpers were
completely removed.
2.
Reset and sequence the relay module.
3.
If the fault persists, replace the relay module.
Code 5-1
*Pre-Ignition
Interlock*
Pre-Ignition Interlock
fault.
1.
Check wiring and correct any errors.
2.
Check Pre-Ignition Interlock switches to assure proper functioning.
3.
Check fuel valve operation.
4.
Reset and sequence the relay module; monitor the Pre-Ignition Interlock status.
5.
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.
1.
Check wiring and correct any errors.
2.
Reset and sequence the relay module.
3.
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.
4.
Reset and sequence the relay module.
5.
If the fault persists, replace the relay module.
Table 10. Blinking Fault Codes and Recommended Troubleshooting. (Continued)
Blink Code
System Failure
Recommended Troubleshooting
