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CODE DESCRIPTION
274 Abnormal Recycle: Demand off during Pilot Flame
Establishing Period
275 Abnormal Recycle: LCI off during Drive to Purge
Rate
276 Abnormal Recycle: LCI off during Measured Purge
Time
277 Abnormal Recycle: LCI off during Drive to Lightoff
Rate
278 Abnormal Recycle: LCI off during Pre-Ignition test
279 Abnormal Recycle: LCI off during Pre-Ignition time
280 Abnormal Recycle: LCI off during Main Flame
Establishing Period
281 Abnormal Recycle: LCI off during Ignition period
282 Abnormal Recycle: Demand off during Drive to
Purge Rate
283 Abnormal Recycle: Demand off during Measured
Purge Time
284 Abnormal Recycle: Demand off during Drive to
Lightoff Rate
285 Abnormal Recycle: Demand off during Pre-Ignition
test
286 Abnormal Recycle: Demand off during Pre-Ignition
time
287 Abnormal Recycle: Flame was on during Safe
Check
288 Abnormal Recycle: Flame was on during Drive to
Purge Rate
289 Abnormal Recycle: Flame was on during
Measured Purge Time
290 Abnormal Recycle: Flame was on during Drive to
Lightoff Rate
291 Abnormal Recycle: Flame was not on at end of
Ignition period
292 Abnormal Recycle: Flame was lost during Main
Flame Establishing Period
293 Abnormal Recycle: Flame was lost early in Run
294 Abnormal Recycle: Flame was lost during Run
295 Abnormal Recycle: Leakage test failed
296 Abnormal Recycle: Interrupted air ow switch was
off during Drive to Purge Rate
297 Abnormal Recycle: Interrupted air ow switch was
off during Measured Purge Time
298 Abnormal Recycle: Interrupted air ow switch was
off during Drive to Lightoff Rate
299 Abnormal Recycle: Interrupted air ow switch was
off during Pre-Ignition test
300 Abnormal Recycle: Interrupted air ow switch was
off during Pre-Ignition time
301 Abnormal Recycle: Interrupted air ow switch was
off during Main Flame Establishing Period
302 Abnormal Recycle: Ignition failed due to
interrupted air ow switch was off
303 Abnormal Recycle: ILK off during Drive to Purge
Rate
CODE DESCRIPTION
231 Lead Lag CH setpoint was invalid
232 Lead Lag CH time of day setpoint was invalid
233 LL outdoor temperature was invalid
234 Lead Lag ODR time of day setpoint was invalid
235 Lead Lag ODR time of day setpoint exceeded
normal setpoint
236 Lead Lag ODR max outdoor temperature was
invalid
237 Lead Lag ODR min outdoor temperature was
invalid
238 Lead Lag ODR low water temperature was invalid
239 Lead Lag ODR outdoor temperature range was
too small (minimum 12°C / 22°F)
240 Lead Lag ODR water temperature range was too
small (minimum 12°C / 22°F)
241 Lead Lag DHW setpoint was invalid
242 Lead Lag Mix setpoint was invalid
243 Lead Lag CH demand switch was invalid
244 Lead Lag CH setpoint source was invalid
245 RESERVED
246 CH setpoint was invalid
247 CH time of day setpoint was invalid
248 CH outdoor temperature was invalid
249 CH ODR time of day setpoint was invalid
250 CH ODR time of day setpoint exceeds normal
setpoint
251 CH max outdoor setpoint was invalid
252 CH min outdoor setpoint was invalid
253 CH min water setpoint was invalid
254 CH outdoor temperature range was too small
255 CH water temperature range was too small
256 Steam setpoint was invalid
257 Steam time of day setpoint was invalid
258 Steam minimum pressure was invalid
259 CH ODR min water temperature was invalid
260 RESERVED
261 DHW setpoint was invalid
262 DHW time of day setpoint was invalid
263 DHW storage setpoint was invalid
264 STAT may not be a DHW demand source when
Remote Stat is enabled
265-266 RESERVED
267 STAT may not be a CH demand source when
Remote Stat is enabled
268 CH 4mA water temperature setting was invalid
269 CH 20mA water temperature setting was invalid
270 Steam 4mA water temperature setting was invalid
271 Steam 20mA water temperature setting was invalid
272 Abnormal Recycle: Pressure sensor fault
273 Abnormal Recycle: Safety relay drive test failed