Cluster of fuses have been rerouted......help !!!!

[ricelake922]

Hello. I was using a test light on fuses that are located outside below the driver's seat. The cluster of fuses on the left side of the box work fine according to the test light. The cluster of fuses on the right side (18 accesories in total) do not register with the test light at all. I tested this non registering cluster with the engine on and off. None of the fuse wires in the fuse box have been disturbed or changed. I pulled a few fuses and tested behind the fuse in the box and nothing. I then tried some of the accessories that are associated with these fuses and they all work fine. I spoke with my mechanic and he says that before I purchased the RV someone must have taken that cluster and rerouted it to another power source. This could be a big big problem as one of the accessories in this cluster works the back brake lights. Anyone have any suggestions...ideas...solutions to what could be a big problem. Thank you in advance.

[MrWizard]

he has not lost power
the circuits are hot
the ground he is using is NOT the Negative side of the circuits he is testing

sounds like the those circuits, that panel , is isolated , a closed loop, not using what ever ground he is using for the other side of his test light
or just turning on the key is NOT enough
i think he said he tested with the key on
but did he test with the engine running ?

[steppinstone]

got me stumped Tell me the out come sorry couldn't help

[mike_brez]

Please let us know the outcome.

[ricelake922]

Well...Thank you to everyone for responses. I will let you know the outcome. Taking RV to an electrical specialist for RV.

[usersmanual]

MrWizard wrote:
That is a sub panel
There is another larger fuse feeding that
And possibly a relay
Goto the main panel under the front hatch or under the dash
And find the feeder fuse
Check the large blade fuses 40, 50, 60 amp
Pull them out and check then with a meter one by one
You might see that one is blown out

Did you also loose power to windshield wipers radio etc..

except he claims that all the items that this fuse bank are supposed to feed are all working

[ricelake922]

Have not lost power to anything.wipers working

[MrWizard]

That is a sub panel
There is another larger fuse feeding that
And possibly a relay
Goto the main panel under the front hatch or under the dash
And find the feeder fuse
Check the large blade fuses 40, 50, 60 amp
Pull them out and check then with a meter one by one
You might see that one is blown out

Did you also loose power to windshield wipers radio etc..

[ricelake922]

Yes..both batteries are engaged. It is the chassis side that is not working.

[steppinstone]

If I'm reading this right in your fuse panel one side of the bank is working and the other side is not correct? In side the coach you should have switches for the coach battery and the chassis battery are they both on when you test the fuses ?

[ricelake922]

I have gone over some of your responses and I grounded the test light in the same spot as I did with testing the fuses that work. The reason I do not think that it is a bad solenoid is the accessories for the defunct fuses still work.

[ricelake922]

I have a 1996 Monaco Dynasty. I went out yesterday and bought a new test light and it did work with the fuse cluster on the left of the fuse box. These are actually fuses...5, 10, 15, 20, and 30. I tried the fuses with the ignition on and off. He left sude whrre the fuses work with test light only show when engine is off. I called Freightliner and spoke to their chief mechanic who had looked at this fuse box as I was trying to get a cig lighter working so I could plug in my new TPMS and he told me today that he had noticed what I was explaining to him what was happening and the best he could come up with was that the cluster of accessories in the 18 fuses have been reported elsewhere and the best thing I could do is follow one of the wires to see where it goes to be powered. I am not a troll. This is serious. I wss looking for advice and suggestions but I see from your responses that you have not encountered this before.

[donkeydew]

are they fuses or cole-hersee circuit breakers?

[usersmanual]

enblethen wrote:
Part of fusing is turned on with ignition switch. Some parts work through the ignition relay.

true but he clearly says some of the things the fuses are marked for still work and he checked with key on and off The Op is pretty Green based on his other posts so like I said in first post have a person of knowledge check things out before jumping to wrong conclusions

[enblethen]

Part of fusing is turned on with ignition switch. Some parts work through the ignition relay.