CleaverBrooks CFC-500 Operation, Service And Parts Manual page 235

Code Description
156 Combustion pressure and Flame ON
157 Combustion pressure and Flame OFF
158 Main valve ON
159 Main valve OFF
160 Ignition ON
161 Ignition OFF
162 Pilot valve ON
163 Pilot valve OFF
164 Block intake ON
165 Block intake OFF
166-171 RESERVED
Feedback
172 Main relay feedback incorrect
173 Pilot relay feedback incorrect
174 Safety relay feedback incorrect
175 Safety relay open
176 Main relay ON at safe start check
177 Pilot relay ON at safe start check
178 Safety relay ON at safe start check
179-183 RESERVED
Parameter Faults
184 Invalid BLOWER/HSI output setting
185 Invalid Delta T limit enable setting
186 Invalid Delta T limit response setting
187 Invalid DHW high limit enable setting
188 Invalid DHW high limit response setting
189 Invalid Flame sensor type setting
190 Invalid interrupted air switch enable setting
191 Invalid interrupted air switch start check
enable setting
192 Invalid igniter on during setting
193 Invalid ignite failure delay setting
Table 49. Falcon Lockout and Hold Codes. (Continued)
Recommended Troubleshooting of Lockout Codes
OEM Specific
1. Check that flame is not present in the combustion
chamber. Correct any errors.
2. Make sure that the flame detector is wired to the correct
terminal.
3. Make sure the F & G wires are protected from stray
noise pickup.
4. Reset and sequence the module, if code reappears,
replace the flame detector.
OEM Specific
1. Check Main Valve terminal wiring and correct any errors.
2. Reset and sequence the module. If fault persist, replace
the module.
OEM Specific
1. Check Ignition terminal wiring and correct any errors.
2. Reset and sequence the module. If fault persist, replace
the module.
OEM Specific
1. Check Pilot Valve terminal wiring and correct any errors.
2. Reset and sequence the module. If fault persist, replace
the module.
OEM Specific
1. Check wiring and correct any errors.
2. Inspect the Block Intake Switch to make sure it is
working correctly.
3. Reset and sequence the module.
4. During Standby and Purge, measure the voltage across
the switch. Supply voltage should be present. If not, the
Block Intake Switch is defective and needs replacing.
5. If the fault persists, replace the relay module.
Internal Fault.
1. Reset Module.
2. If fault repeats, replace module.
1. Return to Configuration mode and recheck selected
parameters, reverify and reset module.
2. If fault repeats, verify electrical grounding.
3. If fault repeats, replace module.
111
CB FALCON
NOTE
H or L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
750-265