Description:

Replacement Part Number: S1-025-37499-000, 025-37499-000, ACS90453BXA, ACS90703BXA, ACS90704CXA, ACS90904CXA, ACS90905DXA, ACS91155DXA, P1257001F, P1257002F, P1257003F, P1257004F, P1257005F, P1257007F, P1257008F, P1257009F, P1257010F. Good Quality: It is made of high-quality wear-resistant metals and ceramics, which have been well tested to ensure long-lasting and effective performance. Professional installation is always and highly Recommended.(You can find the installation on You tube). Function: The flame sensor senses the furnace flame to ensure that ignition has occurred. It then monitors the flame until the furnace is shut down. If combustion is interrupted for any reason, the sensor will lose its signal and close the gas valve.