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S7810M MODBUS™ MODULE
15
65-0249—4
45
FAULT 45: LOW FIRE SW OFF
57
46
FAULT 46: FLAME AMP TYPE
32
47
FAULT 47: JUMPERS CHANGED
50
48
FAULT 48: DELAYED MV ON
28
49
FAULT 49: MAN-OPEN SW. ON
71
50
FAULT 50: JUMPERS WRONG
51
51
FAULT 51: FLAME TOO STRONG
36
52
FAULT 52: CALL SERVICE
24
53
FAULT 53: LOCKOUT SWITCH
55
54
FAULT 54: COMB. PRESSURE
26
55
FAULT 55: PURGE FAN SW ON
91
56
FAULT 56: BLOCK INTAKE
20
57
FAULT 57: PURGE FAN SW OFF
90
58-66
FAULT 58-66: CALL SERVICE
24
67
FAULT 67: AC PHASE
10
68
FAULT 68: PREIGNITION ILK
85
69
FAULT 69: CALL SERVICE
24
70
FAULT 70: CALL SERVICE
24
71-75
FAULT 71-75: DEVICE SPECIFIC
29
76-93
FAULT 76-93: ACCESSORY FAULT
11
94-127
FAULT 94-127: CALL SERVICE
24
128
FAULT 128: POOR FLAME SENSOR
82
129–143
FAULT 129-143: CALL SERVICE
24
144
FAULT 33z: OTHER PREIGN ILK
EA
75
145
FAULT 33y: VALVE CLOSURE
EA
109
146
FAULT 32s: OTHER INTERLOCKS
EA
74
147
FAULT 32r: AUX INTERLOCK #5
EA
16
148
FAULT 32q: AUX INTERLOCK #4
EA
15
149
FAULT 32p: AIRFLOW SWITCH
EA
13
150
FAULT 32o: LOW GAS PRESSURE
EA
59
151
FAULT 32n: HIGH GAS PRESSURE
EA
41
152
FAULT 32m: ATOMIZING SW
EA
14
153
FAULT 32k: LOW OIL TEMP
EA
62
154
FAULT 32j: HIGH OIL TEMP
EA
44
155
FAULT 32i: LOW OIL PRESSURE
EA
61
156
FAULT 32h: HIGH OIL PRESSURE
EA
43
157
FAULT 32g: BOTH FUELS SELECT
EA
21
158
FAULT 32f: FUEL SELECT OFF
EA
38
159
FAULT 32e: AUX LIMIT #3
EA
19
160
FAULT 32d: HIGH LIMIT
EA
42
161
FAULT 32c: LWCO
EA
63
162
FAULT 32b: AUX LIMIT #2
EA
18
163
FAULT 32a: AUX LIMIT #1
EA
17
164
FAULT 30s: OTHER INTERLOCKS
EA
74
165
FAULT 30r: AUX INTERLOCK #5
EA
16
Table 17. 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 16)
166
FAULT 30q: AUX INTERLOCK #4
EA
15
167
FAULT 30p: AIRFLOW SWITCH
EA
13
168
FAULT 30o: LOW GAS PRESSURE
EA
59
169
FAULT 30n: HIGH GAS PRESSURE
EA
41
170
FAULT 30m: ATOMIZING SW
EA
14
171
FAULT 30k: LOW OIL TEMP
EA
62
172
FAULT 30j: HIGH OIL TEMP
EA
44
173
FAULT 30i: LOW OIL PRESSURE
EA
61
174
FAULT 30h: HIGH OIL PRESSURE
EA
43
175
FAULT 30g: BOTH FUELS SELECT
EA
21
176
FAULT 30f: FUEL SELECT OFF
EA
38
177
FAULT 30e: AUX LIMIT #3
EA
19
178
FAULT 30d: HIGH LIMIT
EA
42
179
FAULT 30c: LWCO
EA
63
180
FAULT 30b: AUX LIMIT #2
EA
18
181
FAULT 30a: AUX LIMIT #1
EA
17
182
FAULT 29s: OTHER INTERLOCKS
EA
74
183
FAULT 29r: AUX INTERLOCK #5
EA
16
184
FAULT 29q: AUX INTERLOCK #4
EA
15
185
FAULT 29p: AIRFLOW SWITCH
EA
13
186
FAULT 29o: LOW GAS PRESSURE
EA
59
187
FAULT 29n: HIGH GAS PRESSURE
EA
41
188
FAULT 29m: ATOMIZING SW
EA
14
189
FAULT 29k: LOW OIL TEMP
EA
62
190
FAULT 29j: HIGH OIL TEMP
EA
44
191
FAULT 29i LOW OIL PRESSURE
EA
61
192
FAULT 29h: HIGH OIL PRESSURE
EA
43
193
FAULT 29g: BOTH FUELS SELECT
EA
21
194
FAULT 29f: FUEL SELECT OFF
EA
38
195
FAULT 29e: AUX LIMIT #3
EA
19
196
FAULT 29d: HIGH LIMIT
EA
42
197
FAULT 29c: LWCO
EA
63
198
FAULT 29b: AUX LIMIT #2
EA
18
199
FAULT 29a: AUX LIMIT #1
EA
17
200
FAULT 23s: OTHER INTERLOCKS
EA
74
201
FAULT 23r: AUX INTERLOCK #5
EA
16
202
FAULT 23q: AUX INTERLOCK #4
EA
15
203
FAULT 23p: AIRFLOW SWITCH
EA
13
204
FAULT 23o: LOW GAS PRESSURE
EA
59
205
FAULT 23n: HIGH GAS PRESSURE
EA
41
206
FAULT 23m: ATOMIZING SW
EA
14
Table 17. 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 16)