Tft Series Installation and Operation Instructions
│
Trinity
69
Table 16-3
Hold and Lockout Codes
Code
Description
Note
125
High fire switch stuck ON
Hold
126
Low fire switch OFF
Hold
127
Low fire switch stuck ON
Hold
128
Fan speed failed during pre-purge
Hold / Lockout
129
Fan speed failed during pre-ignition
Hold / Lockout
130
Fan speed failed during ignition
Hold / Lockout
131
Fan movement detected during standby
Hold
132
Fan speed failed during run
Hold
133-135
RESERVED
136
Interrupted Airflow Switch failed to close
Hold
137
ILK failed to close
Hold
138
Flame too low
Lockout
139-142
RESERVED
143
Internal fault: Flame bias out of range 1
Lockout
144
Internal fault: Flame bias out of range 2
Lockout
145
Internal fault: Flame bias out of range 3
Lockout
146
Internal fault: Flame bias out of range 4
Lockout
147
Internal fault: Flame bias out of range 5
Lockout
148
Internal fault: Flame bias out of range 6
Lockout
149
Flame detected
Hold / Lockout
150
Flame not detected
Hold
151
High fire switch ON
Hold / Lockout
152
Combustion pressure ON
Hold / Lockout
153
Combustion pressure OFF
Hold / Lockout
154
Purge fan switch ON
Hold / Lockout
155
Purge fan switch OFF
Hold / Lockout
156
Combustion pressure and Flame ON
Hold / Lockout
157
Combustion pressure and Flame OFF
Lockout
158
Main valve ON
Lockout
159
Main valve OFF
Lockout
160
Ignition ON
Lockout
161
Ignition OFF
Lockout
162
Pilot valve ON
Lockout
163
Pilot valve OFF
Lockout
164
Block intake ON
Lockout
165
Block intake OFF
Lockout
166-168
RESERVED
169
Safety opto bad in test state
Lockout
170
Safety relay opto feedback incorrect
Lockout
171
Safety relay feedback incorrect in run
Lockout
172
Main relay feedback incorrect
Lockout
173
Pilot relay feedback incorrect
Lockout
174
Safety relay feedback incorrect
Lockout
175
Safety relay open
Lockout
176
Main relay ON at safe start check
Lockout
177
Pilot relay ON at safe start check
Lockout
178
Safety relay ON at safe start check
Lockout
179-180
RESERVED
181
Invalid Blocked condensate enable setting
Disabled