sbu22
Guru
- Joined
- Mar 16, 2011
- Messages
- 1,253
- Location
- US
- Vessel Name
- Panache
- Vessel Make
- Viking 43 Double Cabin '76
I’ve discovered that I have two SPST switches on my flybridge console that become real hot to the touch when energized. One services running lights, the second an engine room ventilation blower.
The running lights are standard incandescents in “new” fixtures added about 2 years ago. The lights seem to be at normal intensity and typical heat output. The blower is basic 12v dc that is probably original equipment. The blower is not overheating and functions normally.
My thought is that the switches (likely original equipment) are internally cruddy, creating a high resistance at the contact point, dictating replacement. Does this sound reasonable or am I possibly missing a downstream problem in the circuit?
The second question is: The pricing of replacement SPST switches is all over the place. As are the constituent components. Plastic, stamped brass, with full boots or half boots, screw connections or potted with leads, etc., etc.
Third: The price differential between, say, a 15 amp and a 50 amp switch is slight ($7-8). Any advantage (or disadvantage) to replacement with a higher rated switch?
Appreciate the help.
The running lights are standard incandescents in “new” fixtures added about 2 years ago. The lights seem to be at normal intensity and typical heat output. The blower is basic 12v dc that is probably original equipment. The blower is not overheating and functions normally.
My thought is that the switches (likely original equipment) are internally cruddy, creating a high resistance at the contact point, dictating replacement. Does this sound reasonable or am I possibly missing a downstream problem in the circuit?
The second question is: The pricing of replacement SPST switches is all over the place. As are the constituent components. Plastic, stamped brass, with full boots or half boots, screw connections or potted with leads, etc., etc.
Third: The price differential between, say, a 15 amp and a 50 amp switch is slight ($7-8). Any advantage (or disadvantage) to replacement with a higher rated switch?
Appreciate the help.