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Old 12-04-2021, 01:27 PM   #1
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Relay Identification

2004 Fleetwood Discovery does anyone have a print out of what these relays are - what they go to?

The other reason I need to know this -no power to water pump - checked all the usual items listed in forums - but still no power.
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Old 12-04-2021, 01:53 PM   #2
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Welcome to iRV2 .

The relays in the picture are part of the Freightliner chassis wiring , so nothing to do with your water pump .
There should have been a cover over the Freightliner power distribution blocks , with a diagram; showing relay and fuse use ; on the inside of the cover .

Do you have power to the water pump switch ?
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Old 12-04-2021, 02:04 PM   #3
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For details of the Freightliner wiring and fuse and relay info , contact the free help line with your chassis serial number and ask for the chassis wiring schematic , in the pdf there will be a page with the diagram you need .

I have the info for a 1999 and 2001 chassis , but there may have been changes between 2001 and 04 .

Freightliner help line .

1-800-385-4357
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Old 12-04-2021, 02:12 PM   #4
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Covery missing

the cover is missing to those relays


Also -no power to water water- when press the switch in the inverter box, nothing - same as any of the water pump switches
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Old 12-04-2021, 07:56 PM   #5
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Quote:
Originally Posted by shirleygirl View Post
the cover is missing to those relays


Also -no power to water water- when press the switch in the inverter box, nothing - same as any of the water pump switches
Yes the freightliner fuse relay box is missing . Would have been held in place by the metal spring clips ( yellow arrows ) appears the top clip is broken .

Some where there will be a fuse box ( installed by the coach builder ) with fuses for all the coach interior systems .
Do you have a 12 volt test light or a multimeter ?
Can you remove a water pump switch and check there is power supplied to the switch ?
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Old 12-04-2021, 08:03 PM   #6
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Interior of the cover with diagram would have looked like this ; photo below ; but with the different years of our chassis , the relay uses may be different .
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Old 12-05-2021, 10:14 AM   #7
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I forgot to include the diagram from the second Freightliner PDC ( Power Distribution Center ) So here it is . First picture.
NOTE; This is from my 99 chassis so there could be differences.
Second picture is from another member's Fleetwood on Freightliner coach , The section of 12 volt circuit breakers (yellow box ; push to reset ) are for all the coach builder installed items .
Have you found a similar panel of fuses in your coach ?
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Old 12-07-2021, 08:52 AM   #8
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Quote:
Originally Posted by shirleygirl View Post
2004 Fleetwood Discovery does anyone have a print out of what these relays are - what they go to?

The other reason I need to know this -no power to water pump - checked all the usual items listed in forums - but still no power.
The 5 relays right next to the radio switch are chassis related relays. Here is a picture of the ones in my 2006 Discovery. Note the relay in the lower right (shifter neutral relay) is not used and is not installed.

Here is a file showing the water pump circuit.

Do any of your water pump switches light up? If not, in my 2006 coach, there is a 12 volt 10 amp fuse located in the 12 volt fuse box located under the bed next to where the 120 volt circuit breakers are.
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File Type: pdf 770wtrpumpwirh.pdf (73.1 KB, 10 views)
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Old 12-09-2021, 07:08 PM   #9
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Thank you

WoW the responses area awesome -I printed out the information - diagrams, instructions- I will take a look at all and see if any apply - and will let you know

You are all so nice to help out!! It is greatly appreciated.
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