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S7810M MODBUS™ MODULE
Table 16. 7800 SERIES String codes. (Continued)
String Code
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)
65-0249—4
String
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
Table 17. 7800 SERIES Fault Codes.
Fault Message
Fault Code
(NOTE: FAULT n: is not in
(Reg 40001)
the Fault and Strings Code)
0
Blank (no fault)
1
FAULT 1: NO PURGE CARD
2
FAULT 2: AC FREQUENY/NOISE
3
FAULT 3: AC LINE DROPOUT
4
FAULT 4: AC FREQUENCY
5
FAULT 5: LOW LINE VOLTAGE
6
FAULT 6: PURGE CARD ERROR
7
FAULT 7: FLAME AMPLIFIER
8
FAULT 8: FLAME AMP/SHUTR
9
FAULT 9: FLAME DETECTED
10
FAULT 10: PREIGNITION ILK
11
FAULT 11: RUNNING ILK ON
12
FAULT 12: LOCKOUT ILK ON
13
FAULT 13: AIRFLOW SW. ON
14
FAULT 14: HIGH FIRE SWITCH
15
FAULT 15: FLAME DETECTED
16
FAULT 16: FLAME-OUT TIMER
17
FAULT 17: MAIN FLAME FAIL
18
FAULT 18: FLAME DETECTED
19
FAULT 19: MAIN FLAME IGN.
20
FAULT 20: LOW FIRE SW OFF
21
FAULT 21: RUNNING ILK
22
FAULT 22: LOCKOUT ILK
23
FAULT 23: AIRFLOW SWITCH
24
FAULT 24: CALL SERVICE
25
FAULT 25: CALL SERVICE
26
FAULT 26: MAN-OPEN SW. OFF
27
FAULT 27: START SWITCH ON
28
FAULT 28: PILOT FLAME FAIL
29
FAULT 29: LOCKOUT ILK
30
FAULT 30: RUNNING ILK
31
FAULT 31: LOW FIRE SW OFF
32
FAULT 32: AIRFLOW SWITCH
33
FAULT 33: PREIGNITION ILK
34
FAULT 34: CONTROL ON
35
FAULT 35: CALL SERVICE
36
FAULT 36: CALL SERVICE
37
FAULT 37: CALL SERVICE
38
FAULT 38: CALL SERVICE
39
FAULT 39: CALL SERVICE
40
FAULT 40: CALL SERVICE
41
FAULT 41: MAIN VALVE ON
42
FAULT 42: PILOT VALVE 1 ON
43
FAULT 43: IGNITION ON
44
FAULT 44: PILOT VALVE 2 ON
.
Fault String
Code
(Table 16)
0
73
8
9
7
60
88
34
33
35
85
100
53
12
40
35
37
64
35
65
57
99
54
13
24
24
70
71
76
54
101
57
13
85
27
24
24
24
24
24
24
69
80
47
81
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