Submittal Sheet

7800 SERIES S7800A2142 KEYBOARD DISPLAY MODULE
67 32-00110—05
7800 SERIES Burner Control Fault
History Records
Table 23 describes the registers that are part of a fault
history record. To determine the actual register address for
a parameter within the record, add the register offset to
the start address of the record.
243
FAULT 21k: LOW OIL TEMP
EA
62
244
FAULT 21j: HIGH OIL TEMP
EA
44
245
FAULT 21i: LOW OIL PRESSURE
EA
61
246
FAULT 21h: HIGH OIL PRESSURE
EA
43
247
FAULT 21g: BOTH FUELS SELECT
EA
21
248
FAULT 21f: FUEL SELECT OFF
EA
38
249
FAULT 21e: AUX LIMIT #3
EA
19
250
FAULT 21d: HIGH LIMIT
EA
42
251
FAULT 21c: LWCO
EA
63
252
FAULT 21b: AUX LIMIT #2
EA
18
253
FAULT 21a: AUX LIMIT #1
EA
17
254
FAULT 10z: OTHER PREIGN ILK
EA
75
255
FAULT 10y: VALVE CLOSURE
EA
109
Table 22. 7800 SERIES Fault Codes. (Continued)
Fault
Code
(Reg
40001)
Fault Message
(NOTE: FAULT n: is not in
the Fault and Strings Code)
Fault
String
Code
(Table
22)
Table 23. Fault History Record Format.
Offset Parameter Name Access Format Notes
0 Fault code R U16 See Table 22.
1 Fault String R U16 See Table 21.
2 Sequence State R U16 See Table 20.
3 First line message R U16 See Table 21.
4Second line
message
R U16 See Table 21.
5 Sequence time R U16 Seconds.
6-7 Total cycles R U32
8-9 Total hours R U32