CB FALCON MODBUS COMMUNICATION
32
33 Internal fault: Safety Key 1 Lockout
34 Internal fault: Safety Key 2 Lockout
35 Internal fault: Safety Key 3 Lockout
36 Internal fault: Safety Key 4 Lockout
37 Internal fault: Safety Key 5 Lockout
38 Internal fault: Safety Key 6 Lockout
39 Internal fault: Safety Key 7 Lockout
40 Internal fault: Safety Key 8 Lockout
41 Internal fault: Safety Key 9 Lockout
42 Internal fault: Safety Key 10 Lockout
43 Internal fault: Safety Key 11 Lockout
44 Internal fault: Safety Key 12 Lockout
45 Internal fault: Safety Key 13 Lockout
46 Internal fault: Safety Key 14 Lockout
47 Flame rod to ground leakage Hold
48 Static flame (not flickering) Hold
49 24VAC voltage low/high Hold
50 Modulation fault Hold
51 Pump fault Hold
52 Motor tachometer fault Hold
53 AC inputs phase reversed Lockout
54
Safety GVT model ID doesn't
match application's model ID
Lockout
55 Application
configuration
data block CRC
errors
Lockout
56-57 RESERVED
58 Internal fault: HFS shorted to IAS Lockout
59 Internal fault: Mux pin shorted Lockout
60 Internal fault: HFS shorted to LFS Lockout
61 Anti short cycle Hold
62 Fan speed not proved Hold
63 LCI OFF Hold
64 PII OFF
Hold/
Lockout
65 Interrupted Airflow Switch OFF
Hold/
Lockout
66 Interrupted Airflow Switch ON
Hold/
Lockout
67 ILK OFF
Hold/
Lockout
68 ILK ON
Hold/
Lockout
69 Pilot test hold Hold
70 Wait for leakage test completion Hold
71-77 RESERVED
78 Demand lost in run Hold
79 Outlet high limit
Hold/
Lockout
80 DHW high limit
Hold/
Lockout
Table 8. Falcon lockout and hold codes
Table 8. Falcon lockout and hold codes
Code
De
scription
Note
0 None
No
lockout/
hold
1 Unconfigured safety data Lockout
2 Waiting for safety data verification Lockout
3 Internal fault: Hardware fault Hold
4
Internal fault: Safety Relay key
feedback error
Hold
5 Internal fault: Unstable power (DCDC)
output
Hold
6 Internal fault: Invalid processor clock Hold
7 Internal fault: Safety relay drive error Hold
8 Internal fault: Zero crossing not detected Hold
9 Internal fault: Flame bias out
of
range
Hold
10 Internal fault: Invalid Burner control state Lockout
11
Internal fault: Invalid Burner control
state flag
Lockout
12 Internal fault: Safety relay drive cap short Hold
13 Internal fault: PII shorted to ILK
Hold/
Lockout
14 Internal fault: HFS shorted to LCI
Hold/
Lockout
15
Internal fault: Safety relay test failed
due to feedback ON
Lockout
16
Internal fault: Safety relay test failed
due to safety relay OFF
Lockout
17
Internal fault: Safety relay test failed
due to safety relay not OFF
Lockout
18
Internal fault: Safety relay test failed
due to feedback not ON
Lockout
19 Internal fault: Safety RAM write Lockout
20 Internal fault: Flame ripple and overflow Hold
21
Internal fault: Flame number of
sample mismatch
Hold
22 Internal fault: Flame bias out
of
range
Hold
23
Internal fault: Bias changed since
heating cycle starts
Hold
24
Internal fault: Spark voltage stuck low
or high
Hold
25
Internal fault: Spark
voltage
changed
too
much during flame sensing time
Hold
26 Internal fault: Static flame ripple Hold
27
Internal fault: Flame rod shorted to
ground detected
Hold
28 Internal fault: A/D linearity test fails Hold
29
Internal fault: Flame bias cannot be set
in range
Hold
30
Internal fault: Flame bias shorted
to adjacent pin
Hold
31
Internal fault: SLO electronics
unknown error
Hold
32 Internal fault: Safety Key 0 Lockout