Originally Posted by rikadoo
WOW! I am relatively new to IRV2 and the support from everyone is awesome! after reading everyones response I used the info received and found so much more than I thought I would. I recently bought this coach and have found signs of wire tampering. Kinda afraid I may have knocked over a can of worms, that may explain my headlight switch knob getting so hot when I am driving with the lights on. Thanks to all of you for your information.
Lots of possible explanations to this, but the only thing for certain is that something in the circuit is amiss.
First, your comment about your light switch likely indicates that the power to the headlights is running through that switch rather than through a relay. That tells me that there may have been an issue with the circuit and someone "wired around" the relay, removed it, and connected battery power for the headlights directly to the switch. If this is true
, you need to immediately check the wiring to the switch
and verify if it has been upgraded
to carry the amperage for the headlights. I suspect it hasn't, because of he heating.
Second, placing a relay in the socket causes the high beams to come on with nothing else ON in the coach. That may simply be a result of an incorrect relay
. There may always be a constant HOT terminal in a relay socket from the battery, especially if the vehicle's headlights can be turned on without ignition ON. The relay is supposed to switch that HOT to a device, like headlights, when a switch is moved in the coach and energizes a low draw magnetic coil within the relay
, either by supplying power to the coil or a ground to the coil. It is this low amp magnetic coil circuit to which your headlight switch and/or high beam switch should be connected.
It does not draw many amps and will not cause your switch to heat.
The above is general information, and you should rely on a wiring diagram for your particular coach. However, again, something is amiss with your circuit and odds are it needs a specific relay
to function properly.