CleaverBrooks CFC-500 Operation, Service And Parts Manual page 230

CB FALCON
Code
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
14 Internal fault: HFS shorted to LCI
15 Internal fault: Safety relay test failed due to
feedback ON
16 Internal fault: Safety relay test failed due to
safety relay OFF
17 Internal fault: Safety relay test failed due to
safety relay not OFF
18 Internal fault: Safety relay test failed due to
feedback not ON
19 Internal fault: Safety RAM write
20 Internal fault: Flame ripple and overflow
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 Internal fault: Safety Key 0 through 14
System Errors
47 Flame Rod to ground leakage
48 Static flame (not flickering)
49 24VAC voltage low/high
750-265
Table 49. Falcon Lockout and Hold Codes. (Continued)
Description Recommended Troubleshooting of Lockout Codes
Internal Fault.
1. Reset Module.
2. If fault repeats, replace module.
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.
106
NOTE
H
H
H
H
H
H
H
L
L
H
H or L
H or L
L
L
L
L
L
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H