LAARS NeoTherm NTV (Sizes 399-850 MBTU/h) - Service Manual - Manual (Page 112)

102
Service Manual - NeoTherm 500
Appendix 1 - Error Codes (continued)
Code Description L or H Procedure
221 Unconfigured DHW (Domestic Hot Water)
high limit setpoint setting
L 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.
222 Unconfigured outlet high limit setpoint setting L 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.
223 Unconfigured stack limit setpoint setting L 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.
224 Invalid DHW (Domestic Hot Water) demand
source setting
L 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.
225 Invalid flame threshold setting L 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.
226 Invalid outlet high limit setpoint setting L 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.
227 Invalid DHW (Domestic Hot Water) high limit
setpoint setting
L 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.
228 Invalid stack limit setpoint setting L 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.
229 Invalid modulation output setting L 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.
230 Invalid CH (Central Heat) demand source
setting
L 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.
231 Invalid Delta T limit delay setting L 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.
App1
cont.