Water Temperature Sensor - Central Boiler Pallet Burner Dual Fuel Owner's Manual

3. Using a small screwdriver, loosen the screws
securing each of the wires; then pull the wires out of
the controller.
4. Depress the tabs on the side of the controller mounting
strap; then slide the strap off the controller. Remove
the controller from the control panel.
5. Place the new gasket onto the controller. Slide
the new controller into position (making sure it is
positioned upward) in the control panel; then secure
with the mounting strap.
6. Slide each of the labeled wires into their proper
positions on the controller; then tighten each of the
screws securely.
7. Place the inner door panel into position on the door
and secure with the screws.
8. Close and secure the door. Connect power to the
outdoor furnace.

WATER TEMPERATURE SENSOR

WARNING
Do not attempt service inside the electrical
control panel without first disconnecting the
electrical power at the main power source.
Fig. 45
To test the water temperature sensor using a multimeter,
see Testing Water Temperature Sensor. If the sensor
needs to be replaced, see Replacing Water Temperature
Sensor.
44
TESTING WATER TEMPERATURE SENSOR
1. Disconnect the electrical power at the main power
source to the outdoor furnace; then open the control
panel door. Remove the screws securing the access
box panel; then remove the panel.
WARNING
Do not attempt service inside the electrical
control panel without first disconnecting the
electrical power at the main power source.
2. Disconnect the sensor wires from the controller.
3. Using a multimeter set to Ohms, touch the meter
leads to the wires disconnected from the controller.
A reading of 1000 Ohms or less indicates the
temperature sensor is good; a reading of more than
1000 Ohms indicates the temperature sensor is faulty
and should be replace.
REPLACING WATER TEMPERATURE SENSOR
1. Disconnect the electrical power at the main power
source to the outdoor furnace; then open the control
panel door. Remove the screws securing the access
box panel; then remove the panel.
WARNING
Do not attempt service inside the electrical
control panel without first disconnecting the
electrical power at the main power source.
2. Disconnect the sensor wires from the controller.
3. Remove (by pulling) the sensor from the well.
4. Firmly press the new sensor into the well. Secure the
sensor in place following the instructions provided
with the new sensor.
5. Connect the sensor wires to the controller.
6. Place the access box panel into position and secure
with the screws.
7. Close and secure the door. Connect power to the
outdoor furnace.
Section 4 - Owner Serviceable Items