Service manual

43
Manual Reset Codes*
#
Description
0 None
1
-
31
Internal hardware error
47 Flame rod to ground leakage
49
24VAC low/high
64 Fan speed not proved, ignition failure
67 Blocked flue condition
79 Heater Outlet high limit tripped
82
Stack limit tripped (PVC: 149
o
F, CPVC: 194
o
F,
PPE: 230
o
F, SS, AL29-4C: 250
o
F)
91 Inlet sensor fault
92 Outlet sensor fault
93 DHW sensor fault
95 Stack sensor fault
96 Outdoor sensor fault
105 Flame detected out of sequence
106
Flame lost in Main Flame Establishing Period
(MFEP)
107
Flame lost early in run
108 Flame lost in run
109
Ignition failed
112 Pilot test flame timeout
113
Flame
circuit timeout
149 Flame detected
* To eliminate the hard lockout error,
1) Press the button to clear the error on screen
Automatic Reset Codes
#
Description
0 None
29
Burner switch turned OFF
30 Burner switch turned ON
47
Flame rod to ground leakage
49 Abnormal 24Vac voltage
50 Modulation Fault
61 Anti-short Cycle
62 Fan speed not proved
67
Interlock Off, safety circuit is open
69 Pilot test hold
78
Demand lost in run
79 Outlet high limit tripped (internal limit)
81
Delta
-
T limit exceeded (30
o
F)
91 Inlet sensor fault
92
Outlet sensor fault
93 DHW sensor fault
95
Stack sensor fault
96 Outdoor sensor fault
97-
99
Internal Fault
128 Fan speed failed during prepurge
129
Fan speed failed during
preignition
130 Fan speed failed during ignition
131
Fan movement detected during standby
132 Fan speed failed during run
137
Interlock failed to close, safety circuit is open
110 Ignition failure occurred
111
Flame current below threshold (0.8Vdc)
149 Flame detected
150,
291
Flame not detected
301
-
309
Interlock Off, safety circuit is open
460 Interlock off during burn, safety circuit is open
614
Lead boiler was rotated based on measured run
time