I have a pair of 022 switches in my layout. I am using both with the fixed voltage plugs and have connected them to the 14V fixed output of the transformer (posts B and F on an old model K style unit). Both switches have the 1447 screw-in type bulb. The problem is that one of the switches does not completely throw all the time. When I manually throw the switch with the lantern head, I don't notice any binding - it seems to move freely.
I've seen posts here and on other forums that suggest increasing the fixed voltage to 18-20V and substituting higher rated or LED bulbs to prevent overheating.
These switches have never been serviced, so I am wondering if this could be a sign that they need servicing. Should the switches work reliably at 14V fixed voltage?
Thanks.