HVACopediaNTI · Boiler
Alert 335 Abnormal Recycle: Hardware SLO spark changed
What the control is telling you
Abnormal Recycle: Hardware SLO spark changed.
Applies to: Trinity Tft60, Tft85, Tft110, Tft155, Tft175, Tft200, Tft250, Tft300, Tft399
Models that show this code
13 models in Trinity Tft
Other codes on the same units
- Alert 331 Abnormal Recycle: Hardware SLO flame sample
- Alert 332 Abnormal Recycle: Hardware SLO flame bias range
- Alert 333 Abnormal Recycle: Hardware SLO flame bias heat
- Alert 334 Abnormal Recycle: Hardware SLO spark stuck
- Alert 336 Abnormal Recycle: Hardware SLO static flame
- Alert 337 Abnormal Recycle: Hardware SLO rod shorted
- Alert 338 Abnormal Recycle: Hardware SLO AD linearity
- Alert 339 Abnormal Recycle: Hardware SLO bias not set
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Source: NTI Tft60-399 Installation and Operation Instructions (rev. 2012-04-09), Sec. 15.0 Troubleshooting, Table 15-4. Summarized in our own words; check the original manual for your model.
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