I have noticed the Black Tank Valve has been acting erratically. While on a trip. I needed to dump. I pressed the open Side of the rocker switch for the Black Tank. Found I could only get it to dump by wiggling the button. So I am thinking that there maybe corroded contacts inside the switch body. Anyway changing the switch is easier than changing the valve. Can someone tell me where to get a replacement switch. The Valves are Drain Master and the switches are Sigma
I Called Sigma and they found the switch for me and gave me the part number Q71S-2BBRNI12. The nice lady Rachel from Sigma told me to go on Ebay and search for the part number she gave me. I found it and have it on order for $23.43 delivered.
I have not had a dump valve switch problem but have more then my share of electric dump valves. I replaced my black dump valve because it broke in the open, twice. I also have a problem with one of my gray water valves but have not gone and try and figure out if problem is wiring, one or both of the 1 1/2" valve.
It looks like the gray water valves operate by one open and one closed to change from one position to the other do I have that operation, correct?
TurboJack,
When you told me you had problems with the valve I was worried that I may have a drain valve problem also. Installed the switch to day and all is working well...........for now. The old switch was hard to remove from the panel. It appears that The rectangular hole was not quite tall enough. The new switch would not go in without forcing it. I am sure the original switch had to be forced in also. May have contributed to it only lasting 10 years, grinning. Any way bit of grinding with a rasp bit and it fits much better.