Honeywell S7999D1048, Manual

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