CleaverBrooks CFC - Page 192

750-265 102
80 DHW high limit 1. Check wiring and correct any possible errors.
2. Replace the DHW high limit.
3. If previous steps are correct and fault persists, replace the
module.
81 Delta T limit
82 Stack limit 1. Check wiring and correct any possible errors.
2. Replace the Stack high limit.
3. If previous steps are correct and fault persists, replace the
module.
83-90 RESERVED
91 Inlet sensor fault 1. Check wiring and correct any possible errors.
2. Replace the Inlet sensor.
3. If previous steps are correct and fault persists, replace the
module.
92 Outlet sensor fault 1. Check wiring and correct any possible errors.
2. Replace the Outlet sensor.
3. If previous steps are correct and fault persists, replace the
module.
93 DHW sensor fault 1. Check wiring and correct any possible errors.
2. Replace the DHW sensor.
3. If previous steps are correct and fault persists, replace the
module.
94 Header sensor fault 1. Check wiring and correct any possible errors.
2. Replace the header sensor.
3. If previous steps are correct and fault persists, replace the
module.
95 Stack sensor fault 1. Check wiring and correct any possible errors.
2. Replace the stack sensor.
3. If previous steps are correct and fault persists, replace the
module.
96 Outdoor sensor fault 1. Check wiring and correct any possible errors.
2. Replace the outdoor sensor.
3. If previous steps are correct and fault persists, replace the
module.
97-104 RESERVED
105 Flame detected out of sequence 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.
5. Reset and sequence the module, if code reappears,
replace the module.
106 Flame lost in MFEP 1. Inspect the main fuel valve (s) and connection (s).
2. Make sure that the fuel pressure is high enough to supply
fuel to the combustion chamber.
3. Make sure the flame detector is positioned to obtain the
required flame signal strength.
4. Reset the module and recycle.
5. If fault persists, replace the module.
107 Flame lost early in run 1. Inspect the main fuel valve (s) and connection (s).
2. Make sure that the fuel pressure is high enough to supply
fuel to the combustion chamber.
3. Make sure the flame detector is positioned to obtain the
required flame signal strength.
4. Reset the module and recycle.
5. If fault persists, replace the module.
Table 45. Fault Code and Troubleshooting. (Continued)
Code Description Recommended Troubleshooting of Lockout Codes