Slant/Fin CHS-399 - Manual (Page 71)

CHS Series Installation and Operation Instructions │ Slant Fin Corp.
71
Table 15-3 Hold and Lockout Codes
Code Description Note
70 Wait for leakage test completion Hold
71 Input power frequency mismatch Lockout
72-77 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 Delta T exchanger/outlet limit Disabled
84 Delta T inlet/exchanger limit Disabled
85 Inlet/Outlet inversion limit (See Table 17-1) Hold
86 Exchanger/outlet inversion limit Disabled
87 Inlet/exchanger inversion limit
Disabled
88 Outlet T-Rise limit (See Table 17-1) Lockout
89 Exchanger T-rise limit Disabled
90 Heat exchanger high limit Disabled
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 Exchanger sensor fault Disabled
102-104 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
114-115 RESERVED
116 Wait for OK to Run Disabled
117 Flap valve condensate fault Disabled
118 Controller interaction system fault Hold
119 Controller interaction communications fault Hold
120 Flap valve backflow fault Disabled
121 Flap valve fault Disabled
122 Light off rate proving failed Lockout
123 Purge rate proving failed Lockout
124 High fire switch OFF Hold
125 High fire switch stuck ON Hold
126 Low fire switch OFF Hold