mondial-electrical problem / switches ?

Have you sprayed the solenoids with a light oil? Some times the solenoid( the piston portion of actuator)can stick. It's just strange that all (3)would have the problem. You may want to make this a priority. If the solenoid isn't working, and you were to break the pull cable, you will have a major problem getting the bonnet up.

 

Applicable to most Mondial switches
turn off power at battery
try spraying the switch contacts and inside the switch with Radio Shack electrical cleaner - clean and work the switch action a few times
let solvent dry off
reconnect power

has saved me a few times.
good luck

 

Now get ready for this one ! I had the same problem, sometimes the switches would work sometimes not. I sprayed pushed and cleaned all the obvious connections.
In the end I took the speedo out so I could get to the back of the switches, Once removed I could see that not only where they switches but also relays.
I took the fronts off and cleaned the connections, this was partially successful, What I discovered was that the connectors on the back of the switch are rivited on ! and were very slightly lose, the only reason I notice this was while pressing the switch to test it, the connection got pretty hot.
The answer was to take the switch off conpletely ( not big deal) and I just compressed the rivets. Problem solved, a couple of hour tops to do it.