Honeywell S7999D1048 Manual page 55

Fault/
Blink
Code
22 Internal Error – KEY decode.
23 Internal Error – Rdlow.
24 Internal Error – Time storage.
25 Internal Error – Limited move.
26 Internal Error – Targeted move.
27 Internal Error – LVD.
28 Internal Error – ISR check.
31 Internal Fault – A2D Range.
32 Internal Fault – A2D Matching.
33 Internal Fault – LCO Drive.
34 Internal Fault – LCO/I Feedback.
35 Internal Fault – Commanded State.
36 Fuel Selection Problem.
37 Fault HFP or LFP output.
38 Internal Fault – memory curve.
39 Internal Fault – AC sampling .
41 Feedback potentiometer Interface circuit fault—Air.
42 Feedback potentiometer Interface circuit fault—Fuel 1. Verify correct wiring of Potentiometer
43 Feedback potentiometer Interface circuit fault—Fuel 2. Verify correct wiring of Potentiometer
44 Feedback potentiometer Interface circuit fault – FGR. Verify correct wiring of Potentiometer
45 Feedback potentiometer wiper resistance problem, Air. Check for loose potentiometer wiring
46 Feedback potentiometer wiper resistance problem,
Fuel 1.
47 Feedback potentiometer wiper resistance problem,
Fuel 2.
48 Feedback potentiometer wiper resistance problem,
FGR.
49 Feedback potentiometer total resistance problem, Air.
51 Feedback potentiometer total resistance problem,
Fuel 1.
52 Feedback potentiometer total resistance problem,
Fuel 2.
53 Feedback potentiometer total resistance problem,
FGR.
54 Internal memory function problem, Air.
55 Internal memory function problem, Fuel 1.
56 Internal memory function problem, Fuel 2.
57 Internal memory function problem, FGR.
58 Stuck Reset button.
S7999D1048 COMBUSTION SYSTEM OPERATOR INTERFACE DISPLAY
Table 7. Fault Codes and Corrective Actions. (Continued)
Description Corrective Action
a
Reset Control .
a
Reset Control .
a
Reset Control .
a,c
Reset Control .
a,c
Reset Control .
a
Reset Control .
a
Reset Control .
a
Reset Control .
a
Reset Control .
b
Reset Control .
b
1.) Reset Control . Check actuator wiring. See Channel LED for
actuator.
2.) Terminal 14 has voltage present from an external source,
correct wiring problem.
d
3.) .
a
Reset Control .
Check wiring through fuel select switch, at least one fuel must be
selected at any given time (not zero, not two).
Verify correct wiring to burner control. Specifically check wiring at
LFP and HFP.
a
Reset control .
b
Reset control .
Verify correct wiring of Potentiometer
Check for loose potentiometer wiring
Check for loose potentiometer wiring
Check for loose potentiometer wiring
Check for loose potentiometer wiring
Check for loose potentiometer wiring
Check for loose potentiometer wiring
Check for loose potentiometer wiring
Repeat actuator ID On-line process.
Repeat actuator ID on-line process.
Repeat actuator ID on-line process.
Repeat actuator ID on-line process.
Turn off remote reset switch. Check operation of controller
button.
55
a
.
a
.
a
.
a
.
a,c
.
a,c
.
a,c
.
a,c
.
a,c
.
a,c
.
a,c
.
a,c
.
65-0321—01