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Relays and LED Lighting
We had a body shop to convert all clearance and marker lights to LED while they were repainting our 1998 XL-45. We have had no issues, other than the “courtesy blinker” function on the turn signal will not work when the lights are on. A couple of weekends ago, we lost all clearance and marker lights, but headlights stayed on. We replaced the 24V relays for those lights and they came back on. However, the new relays are generating an annoying “buzz” or vibration. The replacement relays came from Prevost. I’m trying to figure out how to get rid of the buzz,and have a functioning courtesy blinker at night. The turn signal itself has also been recently
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3 Replies
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Could that be a wiring problem. Maybe a short. Just saying as Houston prevost replaced my clearance lights with led’s on my old coach last fall and so far no problems. What model coach?
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It would be a big help to know the year and model of the coach. Add a signature line.
The coach exterior lighting has changed over the years.
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Are you 100% sure the side marker lights are 24volt? We have a 1998 chassis and I am pretty sure ours are 12 volt. You should be able to check this by turning the running lights on and then switching first the 12 volt chassis master switch (small Cole-Hersey) off and back on, then the big 24 volt chassis master switch (large level) off and back on again. That should tell you if the running lights are 12 or 24 volts.
What is the voltage of the LEDs that were installed? There appears to be a pretty good variety of LED options. Some are 12 volt, some are 24 volt, some can be used with either 12 or 24 volts.
This isn’t much, be might get you started in helping to diagnose the problem.
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