Detroit Radiant TP-222 Flame Sensor

The Detroit Radiant TP-222 Flame Sensor is a critical direct-replacement component designed for precise flame rectification in Detroit Radiant Re-Verber-Ray infrared tube heaters. This single-prong sensor is engineered to withstand high-temperature environments within the burner box, ensuring reliable signal feedback to the ignition control module. When the intermittent pilot or main burner ignites, this sensor detects the presence of the flame by conducting a microamp signal; if the flame signal strength drops due to carbon buildup or ceramic oxidation, the system will trigger a safety lockout. Field technicians should verify flame rectification current using a multimeter in series with the sensor lead to ensure it meets the HVAC furnace parts specification of the OEM controller. Replacing a fouled or cracked TP-222 infrared heater part eliminates nuisance outages and ensures the low-intensity tube heater operates at peak efficiency throughout the heating season.

• Direct OEM Replacement: Ensures 100% mechanical and electrical compatibility with Re-Verber-Ray TP series equipment.
• High-Grade Alumina Ceramic: Provides superior insulation and prevents signal leakage to ground in high-heat zones.
• Precision Detection: Facilitates rapid flame signal acquisition to reduce ignition delay and prevent gas valve shutdown.
• Durable Construction: The metallic probe is treated to resist oxidation, extending the intervals between routine preventative maintenance cleanings.

What causes a TP-222 sensor to fail prematurely?
Most failures result from heavy carbon soot accumulation or a cracked ceramic insulator, which allows the flame sensor signal to short-circuit before reaching the control board.

Can I clean this sensor instead of replacing it?
While light oxidation can be removed with a non-conductive abrasive pad, any visible cracks in the ceramic or significant metal pitting requires a full replacement to ensure consistent flame rectification.

What is the standard microamp reading for this sensor?
Technicians should typically expect a reading between 1.0 and 5.0 microamps, depending on the specific ignition module integrated into the Detroit Radiant heater circuit.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.