Trinity Lx │Installation and Operation Instructions Lx Series
74
Table 14-3 Hold and Lockout Codes
Code Description Note
49 24VAC voltage low/high Hold
50 Modulation fault Hold
51 Pump fault Hold
52 Motor tachometer fault Hold
53 AC inputs phase reversed Lockout
54-57 RESERVED -
58 Internal fault: HFS shorted to IAS Lockout
59 Internal fault: Mux pin shorted Lockout
60 Internal fault: HFS shorted to LFS Lockout
61 Anti short cycle Hold
62 Fan speed not proved Hold
63 LCI OFF Hold
64 PII OFF N/A
65 Interrupted Airflow Switch OFF Hold
66 Interrupted Airflow Switch ON Hold
67 ILK OFF Hold
68 ILK ON N/A
69 Pilot test hold Hold
70 Wait for leakage test completion Hold
71-77 RESERVED -
78 Demand lost in run Hold
79 Outlet high limit Hold
80 DHW high limit Disabled
81 Delta T limit Hold / Lockout
82 Stack limit Lockout
83-90 RESERVED -
91 Inlet sensor fault Hold
92 Outlet sensor fault Hold
93 DHW sensor fault Hold
94 Header sensor fault Hold
95 Stack sensor fault Hold
96 Outdoor sensor fault Hold
97 Internal fault: A2D mismatch Lockout
98 Internal fault: Exceeded VSNSR voltage tolerance Lockout
99 Internal fault: Exceeded 28V voltage tolerance Lockout
100 Pressure sensor fault Hold
101-104 RESERVED -
105 Flame detected out of sequence Hold / Lockout
106 Flame lost in MFEP Lockout
107 Flame lost early in run Lockout
108 Flame lost in run Lockout
109 Ignition failed Lockout
110 Ignition failure occurred Hold
111 Flame current lower than WEAK threshold Hold
112 Pilot test flame timeout Lockout
113 Flame circuit timeout Lockout
114-121 RESERVED -
122 Light off rate proving failed Lockout
123 Purge rate proving failed Lockout
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