Biolet Support Center
Documentation
Replacing the thermostat - 20 deluxe, 10 standard
Tools Required: Phillips Screwdriver, Standard Screwdriver, Pliers
- Unplug the electricity.
- Disconnect the vent pipe and lift slightly on the front of the unit and pull the toilet forward.
- Unscrew the retaining nut from the switch behind the seat and push the switch inside the unit. On the Standard model, the shear pin must be removed by tapping it out with a small punch or nail and the handle has to be taken off.
20 Deluxe
10 Standard - Remove thermostat knob by gently prying upward with a standard screwdriver
- Unscrew the compost cover retaining nut by using a standard screwdriver and turning the nut counter-clockwise. Remove the top by lifting on the front of the top while pushing in on the switch. Once the switch has cleared the hole in the top, lift on the rear of the top. The top may stick slightly due to silicon sealant used in production.
- Remove wire clamp at the top of the cassette by removing 2 Phillips screws.
- Unplug wires to the mixing motor (that were under the clamp removed in last step) from terminal block noting position of each wire using the chart below.
- Note: Needle nose pliers and a slight side-to-side wiggle of the wire may be required as the connectors may fit tightly. DO NOT USE A FORWARD AND BACK WIGGLE. THIS MAY BREAK THE TERMINAL.
Terminal # Wire Color
1
2
3
- Write the appropriate wire color in the respective block as you remove the wires
- Remove the four Phillips screws holding the cassette.
- Remove the cassette by lifting it.
- Remove the clamp holding the temperature sensor from the bottom side of the cassette.
- Remove silicone from the hole where sensor lead passes through the cassette.
- Pass sensor through the hole to the top of cassette.
- Remove the two (2) electric leads from the thermostat.
- Remove thermostat mounting screws from the top of the cassette.
- Mount new thermostat using the screws removed in step 10.
- Replace electric leads removed in step 15.
- Pass sensor through the hole shown in step 14 to the bottom side of the cassette. CAUTION: DO NOT KINK OR MAKE SHARP BENDS IN SENSOR LEAD!
- Replace the clamp removed in step 12.
- Reapply silicone that was removed in step 11.
USE ONLY 100% SILICON! DO NOT USE LATEX SILICON. - Insert the new cassette into the unit base. Screw into place with the four screws removed in step 10.
- Connect the wires from mixer motor to the terminal block using the chart in step 8.
- Replace the wire clip holding the wires to the mixer motor.
- Put the top back on, screw the compost cover retaining nut back into place, and connect the nut holding the micro switch. On the Standard model, put the handle back and put in the shear pin.
- Plug the unit into a 120V AC outlet and test the operation of the unit.
- Put the toilet in place and reconnect the vent pipe.
