Electrical toilet

Yes hold both buttons down, it will override the sensor...

Just checked the manual...correction, hold either button down for 6 seconds...

http://www.thetford.com/LinkClick.aspx?fileticket=kVS4ZgzaS8U%3d&tabid=571&mid=1476http://www.thetford.com/LinkClick.aspx?fileticket=kVS4ZgzaS8U%3d&tabid=571&mid=1476

The sensors are have plugs on them but getting to them can be a pain. I don't know if they will function with them unplugged but you could carefully peel it off the tank and let it hang.

If you get that far I suggest installing an in tank sprayer even if you already have one. My sprayer is on the opposite wall and does a poor job of cleaning the sensors. Installing the second one and using quick disconnects on both sprayers makes it easy to switch from one to the other. There is a faucet in my bay with a very short hose with a quick disconnect on it. I can use pump water or shoreline water.

You can buy a flexible hose wand to insert into the tanks via the outlets but that is a bit nasty.

It is impossible to fill the toilet with the flush valve since you are in the lockout mode. Pushing the flush button for 8 seconds will give you up to 5 flushes but that won't put enough water in.

I have been able to flush by following the manual, but now the red light stays on and no blue lights when pushing both, just stay red. I have a flush valve and I have a wand and use them both when I clean my tank, but that isn't getting the job done.

Moved from Forum Technical Support

I contacted Tetford and they instructed me to find the sensor WIRES and peel the sensors off the tank.I did that and can now flush but the red light is still on. One interesting thing is if the sensors are bad, why when the connectors are disconnected does the full tank red light stay on. It flushes but am curious as to why if no power is going to the sensors what is powering the red light.