MARS 33247 Thermal Time Delay the control board cannot verify

the control board cannot verify combustion blower operation

Optimized Energy Efficiency: Prevents unnecessary auxiliary heat engagement by precisely sensing outdoor ambient temperatures

and unit heaters

OEM Reliability: Built to original manufacturer specifications

Key Benefits Automatic Reset Functionality: Eliminates the need for manual intervention by resetting the circuit once temperatures drop below the 135°F threshold

MARS 33247 Thermal Time Delay the control board cannot verifyThe MARS 33247 Thermal Time Delay is a field proven SPDT N O sequencer designed for precision timing in residential and commercial HVACR systems. Engineered to handle high current electric heat and air conditioning loads, this 24V control voltage relay utilizes a solid state PTC device and a snap acting disc to ensure positive make break action. With a delay on make range of 124 seconds and a delay on break range of 1575 seconds, this 33247 sequencer