12-18-2022, 07:05 PM
Ok, got a follow up post here. So 6 weeks ago I had this problem. Writing this from my electrically challenged point of view in the hopes that others who share my ignorance may leann something and the other 90% can have a good laugh. At that time I did the following:
- Pulled fuses in HWH board.
- Tested for blown fuses in HWH board.
- Tested for blown fuses for HWH components in passenger footwell.
Called Newell and told them I did those things to which they said “that’s what we would have tried, call HWH”.
Called HWH and 6 weeks later got my callback from Frank in tech support. I knew it was going to take awhile as there are just two of them and they can only do so much. Frank was awesome. He says first order of business is to test for power at the board and then if yes, test for 12V at the fuse for Ignition, Accessory and Auxiliary. ACC has 12V, Aux has 12v and IGN has like 30 volts…well let’s just say I then learned the difference between millivolts and volts at that moment thanks to Bill.
So no power to the board. Head back up to the passenger footwell and start checking for 12V at the HWH fuses (instead of just seeing if the fuses were bad like I did 6 weeks earlier) and I not only didn’t have power to those two fuses, but I didn’t have power to my air horn and what do you know also to my rear camera, 6-14 were all dead.
Traced the IGN wire that feeds those fuses back to what ended up being a failed relay and we found out I didn’t have an HWH problem I had a relay problem. Thankfully coach came with a box of spares (thanks again Bill) and 2 seconds later all was well with the world.
A few take a ways in hindsight.
1.) Rear camera had been working intermittently on the last trip and we now know it wasn’t a loose connection it was a failing relay.
2.) Horn magically quit working at approximately the same time and also would have been a good idea to see if horn had power.
3.) When I called Newell I can virtually guarantee when I told the electrician what I checked he assumed any fool would have checked for power to the fuse and not just for a blown fuse. Had I let him walk me through a full troubleshoot he would have caught it vs. thinking I’d already covered the electrical bases.
The good news is I learned a lot and in the end it was a super simple fix. Technically I think I learned more the hard way on this one.
- Pulled fuses in HWH board.
- Tested for blown fuses in HWH board.
- Tested for blown fuses for HWH components in passenger footwell.
Called Newell and told them I did those things to which they said “that’s what we would have tried, call HWH”.
Called HWH and 6 weeks later got my callback from Frank in tech support. I knew it was going to take awhile as there are just two of them and they can only do so much. Frank was awesome. He says first order of business is to test for power at the board and then if yes, test for 12V at the fuse for Ignition, Accessory and Auxiliary. ACC has 12V, Aux has 12v and IGN has like 30 volts…well let’s just say I then learned the difference between millivolts and volts at that moment thanks to Bill.
So no power to the board. Head back up to the passenger footwell and start checking for 12V at the HWH fuses (instead of just seeing if the fuses were bad like I did 6 weeks earlier) and I not only didn’t have power to those two fuses, but I didn’t have power to my air horn and what do you know also to my rear camera, 6-14 were all dead.
Traced the IGN wire that feeds those fuses back to what ended up being a failed relay and we found out I didn’t have an HWH problem I had a relay problem. Thankfully coach came with a box of spares (thanks again Bill) and 2 seconds later all was well with the world.
A few take a ways in hindsight.
1.) Rear camera had been working intermittently on the last trip and we now know it wasn’t a loose connection it was a failing relay.
2.) Horn magically quit working at approximately the same time and also would have been a good idea to see if horn had power.
3.) When I called Newell I can virtually guarantee when I told the electrician what I checked he assumed any fool would have checked for power to the fuse and not just for a blown fuse. Had I let him walk me through a full troubleshoot he would have caught it vs. thinking I’d already covered the electrical bases.
The good news is I learned a lot and in the end it was a super simple fix. Technically I think I learned more the hard way on this one.
Brad Aden
2003 Newell #653 Quad Slide Cat C-12 engine
St. Louis, MO