Utica error codes
The complete list of Utica fault codes shown on the display, each with what it means and the page that explains how it is diagnosed and fixed.
Utica heating appliances display 50 documented error codes. Each code below opens its own page with the official meaning, the documented causes, the safety assessment and the parts involved.
All Utica Error Codes
50 codes, each with its own page. Click a code to open the meaning, the documented causes and the repair.
What Fails Most Often on Utica
Grouped from the official meaning of each of the 50 codes above — not from opinion. The number is how many different fault codes point at that component.
| Component | Codes | Examples |
|---|---|---|
| Fan | 5 | Ex. Low Flow Protection, Fan Not Running, Fan Too Fast, Fan Too Slow |
| Flue | 5 | Flue Pressure Error, Flue Temperature Too High, Max. Flue Lock Error, T Flue Open |
| Temperature Sensor | 5 | High Temp Error, T Outdoor Open, T Outdoor Shorted, T Supply Open |
| Pressure Switch | 4 | 14, Air Switch Not Closed, Air Switch Not Open, Gas Pressure Error |
| Ignition | 4 | Flame Before Ignition, Ignition Error, Too Many Flame Fai- lures, Too Many Flame Failures |
| Overheat | 2 | Max. Thermostat Lock Error, verrouillage |
| Dhw Sensor | 2 | T DHW Open, T DHW Shorted |
| Return Sensor | 2 | T Return Open, T Return Shorted |
Parts & Prices
The parts most often involved in the Utica faults listed above.
Prices and availability vary by region and are shown by the retailer, not by TroubleAtlas.
Diagnostic Tools
What an engineer uses to work through the codes on this page.
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