App1, Appendix 1 - error codes (continued), Cont – LAARS NeoTherm NTV (Sizes 399-850 MBTU/h) - Service Manual User Manual
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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.