A.O. Smith 3400 - Manual (Page 66)

66
CODE DESCRIPTION RECOMMENDED TROUBLESHOOTING OF
LOCKOUT CODES
NOTE
212 Invalid Preignition time setting 1. Return to Configuration mode and recheck
selected parameters, reverify and reset module.
2. If fault repeats, verify electrical grounding.
3. If fault repeats, replace module.
L
213 Invalid Prepurge rate setting L
214 Invalid Prepurge time setting L
215 Invalid Purge rate proving setting L
216 Invalid Run flame failure response setting L
217 Invalid Run stabilization time setting L
218 Invalid Stack limit enable setting L
219 Invalid Stack limit response setting L
220 Unconfigured Delta T limit setpoint setting L
221 Unconfigured DHW high limit setpoint setting L
222 Unconfigured Outlet high limit setpoint setting L
223 Unconfigured Stack limit setpoint setting L
224 Invalid DHW demand source setting L
225 Invalid Flame threshold setting L
226 Invalid Outlet high limit setpoint setting L
227 Invalid DHW high limit setpoint setting L
228 Invalid Stack limit setpoint setting L
229 Invalid Modulation output setting L
230 Invalid CH demand source setting L
231 Invalid Delta T limit delay setting L
232 Invalid Pressure sensor type setting L
233 Invalid IAS closed response setting L
234 Invalid Outlet high limit enable setting Contact the qualified service technician. L
235 Invalid Outlet connector type setting Contact the qualified service technician. L
236 Invalid Inlet connector type setting Contact the qualified service technician. L
237 Invalid DHW connector type setting Contact the qualified service technician. L
238 Invalid Stack connector type setting Contact the qualified service technician. L
239 Invalid S2 (J8-6) connector type setting Contact the qualified service technician. L
240 Invalid S5 (J8-11) connector type setting Contact the qualified service technician. L
241 Exchanger sensor not allowed with stack
connector setting
Not Applicable. L
242 Invalid DHW auto detect configuration Not Applicable. L
243 Invalid UV with spark interference not compatible
with Igniter on throughout PFEP
Contact the qualified service technician. L
244 Internal fault: Safety relay test invalid state Contact the qualified service technician. L
245 Invalid Outlet connector type setting for Trise Contact the qualified service technician. L
246 4-20mA cannot be used for both modulation and
setpoint control
Contact the qualified service technician. L
247 Invalid ILK bounce detection enable Not Applicable. L
248 Invalid forced recycle interval Not Applicable. L
249 STAT cannot be demand source when Remote
Stat is enabled
Not Applicable. L
250 Invalid Fan speed error response 1. Check fan cables secured properly. If fault
persists contact the qualified service technician.
L
251-255 RESERVED