Filter
Top Products
5061 Brooks St. Montclair, CA 91763
909-399-3355 Fax 1-909-399-3357
www.sierraproductsinc.com
2 7
EF3801/4001 T-1/T-2 Sensor
Replacement Instruction
OVERVIEW
First production 2005 stoves Serial #3384 to #3420 require precautionary replacement of both T-1 and T-2 sensors. The
sensors located in the stove body sense the operating temperatures and overall parameters of the stove. The T-1 sensor
provides blocked flue and operating sensing while the T-2 sensor provides start up, shut down, and over temp. sensing.
The first 26 units have a sensor assembly attached in such a way that may cause the stove to act erratically. As a
precaution we are requiring replacement of the sensors and offering a repair credit. Please contact customer service @
800-527-4790x29 for further information.
T-1 and T-2 Sensor Replacement:
Removal from 3801 and 4001 Insert: The T-1 and T-2 sensors maybe accessed by removing the inspection covers on
back of the unit. The T-1 sensor is installed into to the right side of the combustion housing just above the exhaust tube.
Unplug the harness connector to the sensor. Using a wrench, unscrew the brass fitting and sensor holder from the
exhaust pipe. The T-2 sensor is located right of the combustion housing attached on the lower portion of the manifold.
Unplug the harness connector the sensor. Remove the #10 nut attaching the sensor holder and remove the sensor.
Reverse process to install new sensor fitting and holder. Reinstall the rear panel and confirm standard operation.