Biolet Support Center
Documentation
Replacing the compost cover
Tools Required: Phillips Screwdriver, Pliers, 7mm Wrench or Crescent Wrench
- 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.
60 XL & 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 the two screws on the front (when facing the unit) compost cover plate.

- Remove the two nuts holding the back of the compost cover on by using a 7mm Wrench or Crescent Wrench.

- Gently remove the old compost cover, ensuring that no damage occurs to the studs.
- Slide the new compost cover on to the studs and replace the nuts you removed in step 7.
- Replace the screws that you removed in step 6.
- Put the top back on, replace the compost cover retaining nut, and connect the nut holding the switch behind the seat. On the Standard model, put the handle back and reinstall the shear pin.
- Plug the unit into a 120VAC outlet and test the operation.
- Put the toilet in place and reconnect the vent pipe.