Dometic model 8700 macerator toilet troubleshooting

[mcdaniej56]

Currently troubleshooting our Dometic model 8700 macerator toilet on a 2018 Newmar Ventana 3709. Stopped in mid-flush, yellow light came on and green light is blinking. Turned battery disconnect off/on, toilet flushed and then returned to solid yellow light and green blinking light, non-operational. Also disconnected/reconnected wiring harness and cat 5 cable behind the toilet, allows one flush, then returned to solid yellow light and green blinking light, non-operational. All wires behind the toilet appear to be in good condition and have solid connections. Black tank is empty and has been flushed several times. Appreciate any advice.

[scotttkd]

Usually the reboot of the switch (unplugging the cat5) will reset any issues it is having, the next component in line is the controller, possibly a 12volt reset of the system will help. If rebooting the controller doesn't help then, one of those two components is likely bad. FWIW I had to replace a bad switch in my 1/2 bath last year. Fortunately they are back in stock now in most places, but not cheap.