John Salla
Member
To those of you who help me with my window relay setup, I hope that you will please help me here, and to those of you who did not, I also ask that you please help me here. To recap, I used relays to operate the windows in my 1987 Jaguar XJS. MikeML did a diagram of how the relays should be setup and used. That was a winner setup. So I decided to use it again for my convertible top. My convertible top has a button like a window that makes it go up and down. I am attaching a diagram of the relay setup for the top. The top works when I press the button but after about two seconds it blows a 40 amp fuse. One of the reason relays are used is to reduce the amount of amperage draw by the load. I have read that a convertible top motor can draw up to 100 amps. I do not know how many amps my motor draws. But I started out with a 20 amp fuse and worked my way up to a 40 amp fuse and that 40 amp fuse is still blowing. Remember, the relays reduce the amp draw by the top motor. I do not know how one figures by how much. Now, I can keep putting higher fuses in the fuse holder, but before I did that, I wanted to touch base with people in the know. I knew my windows would draw no more than 15 amps. This top motor is an unknown. I don't want to one day be driving down the street and have a fire in my trunk. (The top motor is in the trunk.) This car has already suffered two fires. I nursed it back from the first one, but the second one destroyed its 12 cylinder engine and was a very costly event. So, please help me out here. Thanks so much.
John
John