Carrier LH33WZ007 Flame Sensor 319825-402 What causes a hot surface

What causes a hot surface ignitor to fail

Using a genuine Carrier KT63ZZ118 preserves the integrity of the original equipment's agency listings and safety standards while preventing the premature shaft wear often associated with non-proprietary aftermarket alternatives

and TCY series units

reducing downtime and simplifying the troubleshooting process for the technician

ensuring seamless compatibility during retrofits

Carrier LH33WZ007 Flame Sensor 319825-402 What causes a hot surfaceAs a veteran technician, you know that a failed Carrier LH33WZ007 Flame Sensor is one of the most common causes of nuisance furnace lockouts. This OEM furnace flame sensor is a critical safety component designed specifically for Carrier gas furnace troubleshooting and maintenance. Engineered to withstand the extreme temperatures of the burner assembly, the LH33WZ007 utilizes the principle of flame rectification to signal the furnace control board that