Check for a weak pilot flame that isn't fully engulfing the top 1/2 inch of the thermocouple

Which terminals represent the fan and the compressor

using this factory-specified ignition cable is the most reliable way to restore consistent spark performance and maintain the combustion efficiency of hydronic heating equipment

this rail eliminates mounting play and ensures a stable ground path for snap-track components

Reznor 197033 Rollout Switch Check for a weak pilotThe Reznor 197033 Rollout Switch is a critical safety component designed for high limit flame rollout detection in Reznor heater units. This manual reset rollout switch operates with a fixed temperature setpoint of 210 degrees Fahrenheit, providing essential circuit interruption if burner flames escape the combustion chamber. Engineered with a Single Pole Single Throw (SPST) configuration, this switch serves as a direct replacement for Therm O Disc