Specification Sheet

® U.S. Registered Trademark.
© 2018 Honeywell International Inc.
32-00110—07 M.S. Rev. 11-18
Printed in U.S.A.
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Fault
Code
(Reg
40001)
Fault Message
(NOTE: FAULT n: is not in
the Fault and Strings Code)
Fault
String
Code
(Table
21)
231 FAULT 22e: AUX LIMIT #3EA 19
232 FAULT 22d: HIGH LIMITEA 42
233 FAULT 22c: LWCOEA 63
234 FAULT 22b: AUX LIMIT #2EA 18
235 FAULT 22a: AUX LIMIT #1EA 17
236
FAULT 21s: OTHER INTERLOCK-
SEA
74
237
FAULT 21r: AUX INTERLOCK
#5EA
16
238
FAULT 21q: AUX INTERLOCK
#4EA
15
239 FAULT 21p: AIRFLOW SWITCHEA 13
240
FAULT 21o: LOW GAS PRESSU-
REEA
59
241
FAULT 21n: HIGH GAS PRESSU-
REEA
41
242 FAULT 21m: ATOMIZING SWEA 14
243 FAULT 21k: LOW OIL TEMPEA 62
244 FAULT 21j: HIGH OIL TEMPEA 44
245
FAULT 21i: LOW OIL PRESSU-
REEA
61
246
FAULT 21h: HIGH OIL PRESSU-
REEA
43
247
FAULT 21g: BOTH FUELS SE-
LECTEA
21
248 FAULT 21f: FUEL SELECT OFFEA 38
249 FAULT 21e: AUX LIMIT #3EA 19
250 FAULT 21d: HIGH LIMITEA 42
251 FAULT 21c: LWCOEA 63
252 FAULT 21b: AUX LIMIT #2EA 18
Fault
Code
(Reg
40001)
Fault Message
(NOTE: FAULT n: is not in
the Fault and Strings Code)
Fault
String
Code
(Table
21)
253 FAULT 21a: AUX LIMIT #1EA 17
254 FAULT 10z: OTHER PREIGN ILKEA 75
255 FAULT 10y: VALVE CLOSUREEA 109
Table 22. 7800 SERIES Fault Codes.
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.
Off-
set
Parameter
Name
Ac-
cess
For-
mat
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 mes-
sage
R U16
See Table
21.
4
Second 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
Table 23. Fault History Record Format.