7800 Series Fault Codes - Honeywell 7800 SERIES Manual

7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE

7800 SERIES Fault Codes

Table 23 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 23. 7800 SERIES Fault Codes.
Fault
Code Fault Message
(Reg (NOTE: FAULT n: is not in
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: PRE-IGNITION 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: PRE-IGNITION 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
65-0288-1
Table 23. 7800 SERIES Fault Codes. (Continued)
Fault
Code
(Reg
40001)
41 FAULT 41: MAIN VALVE ON
Fault
42 FAULT 42: PILOT VALVE 1 ON
String
43 FAULT 43: IGNITION ON
Code
(Table 22)
44 FAULT 44: PILOT VALVE 2 ON
0
45 FAULT 45: LOW FIRE SW OFF
73
46 FAULT 46: FLAME AMP TYPE
8
47 FAULT 47: JUMPERS CHANGED
9
48 FAULT 48: DELAYED MV ON
7
49 FAULT 49: MAN-OPEN SW. ON
60
50 FAULT 50: JUMPERS WRONG
88
51 FAULT 51: FLAME TOO STRONG
34
52 FAULT 52: CALL SERVICE
33
53 FAULT 53: LOCKOUT SWITCH
35
54 FAULT 54: COMB. PRESSURE
85
55 FAULT 55: PURGE FAN SW ON
100
56 FAULT 56: BLOCK INTAKE
53
57 FAULT 57: PURGE FAN SW OFF
12
58 FAULT 58: COMB. PRESS/FLAME
40
59 FAULT 59: CALL SERVICE
35
60 FAULT 60: CALL SERVICE
37
61 FAULT 61: MV1 OFF
64
62 FAULT 62: MV2 OFF
35
63 FAULT 63: MV1 ON
65
64 FAULT 64: MV2 ON
57
65 FAULT 65: VPS OFF
99
66 FAULT 66: VPS ON
54
67 FAULT 67: AC PHASE
13
68 FAULT 68: PRE-IGNITION ILK
24
69 FAULT 69: CALL SERVICE
24
70 FAULT 70: CALL SERVICE
70
71-75 FAULT 71-75: DEVICE SPECIFIC
107
76-93 FAULT 76-93: ACCESSORY FAULT
76
94-127 FAULT 94-127: CALL SERVICE
54
128 FAULT 128: POOR FLAME SENSOR
101
129–141 FAULT 129-141: CALL SERVICE
57
142
FAULT 68z: OTHER PREIGN ILK
13
143
FAULT 68y: VALVE CLOSURE
85
144
FAULT 33z: OTHER PREIGN ILK
27
145
FAULT 33y: VALVE CLOSURE
24
146
24
FAULT 32s: OTHER INTERLOCKS
24
147
FAULT 32r: AUX INTERLOCK #5
24
148
FAULT 32q: AUX INTERLOCK #4
24
149
FAULT 32p: AIRFLOW SWITCH
24
46
Fault Message
(NOTE: FAULT n: is not in
the Fault and Strings Code)
EA
EA
Fault
String
Code
(Table 22)
69
80
47
81
57
32
50
28
71
51
36
24
55
26
91
20
90
26
24
24
218
219
220
221
222
223
10
85
24
24
29
11
24
82
24
75
EA
109
EA 75
109
74
EA
EA 16
15
EA
13
EA