Blowing Fuse When Using Flashers

[CYOUL8R]

I have a Workhorse P32 chassis and have a problem of blowing the flasher/hazard fuse when using this system while towing my Jeep. Without the tow there is no problem. I realize this adds additional lights into the system but I don't blow any fuses when using tail lights or brake lights. I noticed that the tail light fuse is 20 amp but the brake/hazard fuse is only 15 amp. I purchased the motorhome new so no one has put in an incorrect fuse. What amperage fuse is normal for the brake/hazard lights and can I replace the 15 amp with a 20 amp?

[CYOUL8R]

I have a Workhorse P32 chassis and have a problem of blowing the flasher/hazard fuse when using this system while towing my Jeep. Without the tow there is no problem. I realize this adds additional lights into the system but I don't blow any fuses when using tail lights or brake lights. I noticed that the tail light fuse is 20 amp but the brake/hazard fuse is only 15 amp. I purchased the motorhome new so no one has put in an incorrect fuse. What amperage fuse is normal for the brake/hazard lights and can I replace the 15 amp with a 20 amp?

[RV Wizard]

Recommend you contact Workhorse about this fuser size. DON'T install a larger fuse unless they say you can. Have you assured the wiring on Jeep is correct? Might be worth looking at. Good luck and let us know what you find out. Thanks

[The Beaver]

Suggest you also check the cable from the motorhome to the tow vehicle. I had a similiar problem a few years back and found I had a loose connection in the connecting cable.

[wilanddij]

What "the beaver" said. If you have the blue coiled toad cable, take the back covers off the connectors and make sure all the little set screws are tight. Once a power wire gets loose inside there all kinds of things happen.

[Hillbilly2]

Look at the cable for damage also, sometimes if it gets pinched by the towbar the wires get mashed together shorting out. Also manufactuers usually have seperate fuses for the coach lights and the toad lights so that not all lighting is lost if there is a problem with one or the other.

[CYOUL8R]

Thanks for the replies. I have checked the cable and found no problems. I should have mentioned that the flashers will work for about 10 seconds before blowing the fuse. It seems like the system gets overloaded when I connect my Jeep and it doesn't make sense to me that the tail light fuse is 20 amp while the brake/hazard is only 15 amp. They sould both be using the same wire diameter so I don't see the harm of increasing the fuse size. What fuse size do others have on their brake/hazard circuit?

[dieselclacker]

Increase the fuse size to 20 amps. Should not be a problem. As you said wire gauge is the same as tail light circuit. The 20 amp will blow before any damage can be done to the circuit. You may be just on the edge with the toad connected, after all you are flashing at least eight bulbs when you have the emergency flasher on.

Dieselclacker

[Hillbilly2]

The reason that the OEM has a 15 amp fuse may be because the flasher unit is rated at 15 amps. I think though most of the flashers I have seen are rated at 30 though. Is the electrical connection for the toad factory installed or was it spliced into the exsisting tailights on the MH? That may be the problem. there should be a bundle of wires at the rear just for connection of a toad or trailer. These wires would have seperate fuses and flasher unit or relay to handle the load. Has it worked before or has it never worked?

[CYOUL8R]

The connection is not factory installed and does not have its own flasher or fuse. I'll check out the flasher rating tomorrow to see what amperage it's rated at. Dieselclacker, I'm only adding two more lights to flash when I hook up the Jeep as I did not include the Jeep's front lights into the circuit. Can anyone tell me what size fuse is in your flasher circuit? Thanks!

[dieselclacker]

CYOUL8R, the size fuse for the brake/hazard light circuit on my 2004 Workhorse chassis is 20A.

Dieselclacker

[CYOUL8R]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Can anyone tell me what size fuse is in your flasher circuit? Thanks! </div></BLOCKQUOTE>

[CYOUL8R]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Can anyone else tell me what size fuse is in your flasher circuit? Thanks! </div></BLOCKQUOTE>