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S7810M MODBUS™ MODULE
65-0249—4
14
7800 SERIES Fault Codes
Table 17 is a complete list of fault codes that may appear in the fault
code register. The Fault String Code register will contain the
corresponding String code identified in the table
.
144
HighFire Sw T19 = 0
145
HighFire Sw T19 = 1
146
PreIgn ILK T20 = 0
147
PreIgn ILK T20 = 1
148
Lockout Inp T20 = 0
149
Lockout Inp T20 = 1
150
Comb Press T20 = 0
151
Comb Press T20 = 1
152
Valv/Start T21 = 0
153
Valv/Start T21 = 1
154
Intmitt PV T21 = 0
155
Intmitt PV T21 = 1
156
Terminal T6 = 0
157
Terminal T6 = 1
158
Terminal T7 = 0
159
Terminal T7 = 1
160
Terminal T8 = 0
161
Terminal T8 = 1
162
Terminal T9 = 0
163
Terminal T9 = 1
164
Terminal T10 = 0
165
Terminal T10 = 1
166
Terminal T16 = 0
167
Terminal T16 = 1
168
Terminal T17 = 0
169
Terminal T17 = 1
170
Terminal T18 = 0
171
Terminal T18 = 1
172
Terminal T19 = 0
173
Terminal T19 = 1
174
Terminal T20 = 0
175
Terminal T20 = 1
176
Terminal T21 = 0
177
Terminal T21 = 1
178
Jumper 1 Intact
179
Jumper 1 Clipped
180
Jumper 2 Intact
181
Jumper 2 Clipped
182
Jumper 3 Intact
183
Jumper 3 Clipped)
NOTE:
The values that follow are generated when the fault code
is zero and the Expanded Annunciator code indicates that
one or more switches are open. The Line 2 string code will
indicate which switch is open.
184
STANDBY HOLD (EA)
185
PURGE HOLD (EA)
186
PILOT HOLD (EA)
187
MAIN IG HOLD (EA)
188
RUN HOLD (EA)
189
POSTPURGE HOLD (EA)
190
PREIGNITION HOLD (EA)
Table 16. 7800 SERIES String codes. (Continued)
String Code
String
Table 17. 7800 SERIES Fault Codes.
Fault Code
(Reg 40001)
Fault Message
(NOTE: FAULT n: is not in
the Fault and Strings Code)
Fault String
Code
(Table 16)
0
Blank
(no fault)
0
1
FAULT 1: NO PURGE CARD
73
2
FAULT 2: AC FREQUENY/NOISE
8
3
FAULT 3: AC LINE DROPOUT
9
4
FAULT 4: AC FREQUENCY
7
5
FAULT 5: LOW LINE VOLTAGE
60
6
FAULT 6: PURGE CARD ERROR
88
7
FAULT 7: FLAME AMPLIFIER
34
8
FAULT 8: FLAME AMP/SHUTR
33
9
FAULT 9: FLAME DETECTED
35
10
FAULT 10: PREIGNITION ILK
85
11
FAULT 11: RUNNING ILK ON
100
12
FAULT 12: LOCKOUT ILK ON
53
13
FAULT 13: AIRFLOW SW. ON
12
14
FAULT 14: HIGH FIRE SWITCH
40
15
FAULT 15: FLAME DETECTED
35
16
FAULT 16: FLAME-OUT TIMER
37
17
FAULT 17: MAIN FLAME FAIL
64
18
FAULT 18: FLAME DETECTED
35
19
FAULT 19: MAIN FLAME IGN.
65
20
FAULT 20: LOW FIRE SW OFF
57
21
FAULT 21: RUNNING ILK
99
22
FAULT 22: LOCKOUT ILK
54
23
FAULT 23: AIRFLOW SWITCH
13
24
FAULT 24: CALL SERVICE
24
25
FAULT 25: CALL SERVICE
24
26
FAULT 26: MAN-OPEN SW. OFF
70
27
FAULT 27: START SWITCH ON
71
28
FAULT 28: PILOT FLAME FAIL
76
29
FAULT 29: LOCKOUT ILK
54
30
FAULT 30: RUNNING ILK
101
31
FAULT 31: LOW FIRE SW OFF
57
32
FAULT 32: AIRFLOW SWITCH
13
33
FAULT 33: PREIGNITION ILK
85
34
FAULT 34: CONTROL ON
27
35
FAULT 35: CALL SERVICE
24
36
FAULT 36: CALL SERVICE
24
37
FAULT 37: CALL SERVICE
24
38
FAULT 38: CALL SERVICE
24
39
FAULT 39: CALL SERVICE
24
40
FAULT 40: CALL SERVICE
24
41
FAULT 41: MAIN VALVE ON
69
42
FAULT 42: PILOT VALVE 1 ON
80
43
FAULT 43: IGNITION ON
47
44
FAULT 44: PILOT VALVE 2 ON
81