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Old 10-02-2022, 09:13 AM   #1
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Join Date: Nov 2020
Location: Livingston TX
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Dometic model 8700 macerator toilet troubleshooting

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.
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Old 10-02-2022, 09:46 AM   #2
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Location: KK6YAU
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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.
2020 Newmar Kountry Star
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ace, dometic, macerator, toilet, troubleshooting

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