CleaverBrooks CFC User Manual

750-265 100
2 Waiting for safety data verification Internal Fault.
1. Reset Module.
2. If fault repeats, replace module.
3 Internal fault: Hardware fault
4 Internal fault: Safety Relay key feedback error
5 Internal fault: Unstable power (DCDC) output
6 Internal fault: Invalid processor clock
7 Internal fault: Safety relay drive error
8 Internal fault: Zero crossing not detected
9 Internal fault: Flame bias out of range
10 Internal fault: Invalid Burner control state
11 Internal fault: Invalid Burner control state flag
12 Internal fault: Safety relay drive cap short
13 Internal fault: PII shorted to ILK Internal Fault.
1. Reset Module.
2. If fault repeats, replace module.
14 Internal fault: HFS shorted to LCI
15 Internal fault: Safety Relay Test FB ON
16 Internal fault: Safety Relay Test SR OFF
17 Internal fault: Safety Relay Test SR not OFF
18 Internal fault: Safety Relay Test FB not ON
19 RESERVED
20 Internal fault: Flame ripple and overflow Internal Fault.
1. Reset Module.
2. If fault repeats, replace module.
21 Internal fault: Flame number of sample mismatch
22 Internal fault: Flame bias out of range
23 Internal fault: Bias changed since heating cycle starts
24 Internal fault: Spark voltage stuck low or high
25 Internal fault: Spark voltage changed too much during
flame sensing time
26 Internal fault: Static flame ripple
27 Internal fault: Flame rod shorted to ground detected
28 Internal fault: A/D linearity test fails
29 Internal fault: Flame bias cannot be set in range
30 Internal fault: Flame bias shorted to adjacent pin
31 Internal fault: SLO electronics unknown error
32-46 RESERVED
47 Flame rod to ground leakage 1. Check the flame rod insulator for cracks.
2. Check for potential short of the flame rod to nearby
ground or burner surface.
3. Check the leadwire for the potential of shorting to ground.
4. If steps 1-3 are correct and the fault persists, replace the
module.
48 Static flame (not flickering) 1. Check the flame rod position to the flame - should be in
outer area 2/3 of the flame.
2. Check for potential of other flame simulating conditions.
3. Check the leadwire for the potential of being pinched.
4. If steps 1-3 are correct and the fault persists, replace the
module.
49 24VAC voltage low/high 1. Check the Module and display connections.
2. Check the Module power supply and make sure that both
frequency, voltage and VA meet the specifications.
Table 45. Fault Code and Troubleshooting. (Continued)
Code Description Recommended Troubleshooting of Lockout Codes

CleaverBrooks CFC Specifications

General

Brand	CleaverBrooks
Model	CFC
Category	Boiler
Language	English