NTI · Boiler

Alert 306 Abnormal Recycle: ILK off during Pre-Ignition test

Low severity Trinity Tft

What the control is telling you

Abnormal Recycle: ILK off during Pre-Ignition test.

Applies to: Trinity Tft60, Tft85, Tft110, Tft155, Tft175, Tft200, Tft250, Tft300, Tft399

Models that show this code

13 models in Trinity Tft

Tft110Tft154Tft155Tft175Tft200Tft201Tft250Tft285Tft300Tft340Tft399Tft60Tft85

Other codes on the same units

Alert 302 Abnormal Recycle: Ignition failed due to interrupted air flow switch was off
Alert 303 Abnormal Recycle: ILK off during Drive to Purge Rate
Alert 304 Abnormal Recycle: ILK off during Measured Purge Time
Alert 305 Abnormal Recycle: ILK off during Drive to Light off Rate
Alert 307 Abnormal Recycle: ILK off during Pre-Ignition time
Alert 308 Abnormal Recycle: ILK off during Main Flame Establishing Period
Alert 309 Abnormal Recycle: ILK off during Ignition period
Alert 31 Program Module (PM) was inserted into socket

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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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For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.