What is this red switch?

[bkahler]

Originally Posted by todbot

I have a 1978 28' Argosy motorhome that has been a pleasure to own! We have had it for just under a year. We have figured out most of its quirks, but a few things remain a mystery. One of the items on the list is a red toggle switch that is to the right of the ignition and to the left of the a/c toggle switch. It lights up when you flip it, but it doesn't seem to do anything. Anyone have any idea what it may do? Also there is a pull that says heater on it that is next to the window on the passenger side. I can heat a damper move when it pushes in or pulls out, but the manual has not info on what it does in either position. Thanks in advance for the help!
Todd

Todd,

I can think of a couple of different possibilities. It could be your electric fuel pump as others have suggested or it could be your fuel tank diverter valve if you have dual tanks. Our 1974 20' Argosy MH has dual tanks and has a switch added on the dash. The tank appears to have been added by Airstream but the switch on the dash had no labels on it.

Definitely let us know what it is when you figure it out!

Brad

[Kevin245]

Originally Posted by Lumatic

There was an option in the 70s called a Thermosan. Pumped the black tank into the engine exhaust.

I've heard that a diesel being run on cooking oil smells like french fries. Wonder what this would've...Oh never mind

Kevin

[GlenCoombe]

See post #16 above for further explanation of the photo below.

[tschat]

Check the front bumper for old fog light mounts/holes.

[DaveFL]

I installed a similar switch on my last mh to turn off the radio as it's memory stayed active and drained battery when in long term storage, two weeks ;-(

[overlander63]

Originally Posted by tschat

Check the front bumper for old fog light mounts/holes.

That would be my guess as well. Our "new" Suburban had those holes and that switch.

[azflycaster]

Did the PO install one of these?

[walter1]

red switches make things go BOOM...yellow ones make things eject!

[vinstream]

With all the negative stuff about the WBCCI ... the red switch is to turn off and on your red numbers....

[argy]

After fog lights and fuel system, another possibility is the PO put a cutoff switch to the annoying fan that is designed to run on lo whenever the ignition is on!

[Darel]

I have a 28' 1977 Argosy. I have two switches in about the same place that operate the dash mounted fans.