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11-11-2016, 07:57 PM
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#1
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Winnebago Master
Join Date: Sep 2007
Posts: 724
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Coach 12v water pump fuse location?
My water pump worked normally at 3pm but not at 6 pm.
Maletizing no help.
All circuit breakers on both panels OK.
Fuses under dash OK.
Cannot find an inline fuse.
The pump switch indicator light works but the pump doesn't
Run. 
__________________
01 WINNEBAGO 35U W20.8.1L SW Wa, Hi. Good Sam, SKP. AMSOIL fluids. BANKS ecm program. SCAN GAUGE II w/ Ally temp. 2 LIFELINE GPL-6CT AGM Batts on their sides. TST tptts. K&N panel air filter. AERO mufflers. TAYLOR plug wires. ULTRA POWER track bar. KONI fsd shocks, toad '14 smart car
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11-11-2016, 08:17 PM
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#2
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Winnebago Master
Join Date: Dec 2003
Location: Motor City, Mich
Posts: 1,003
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Wiring diagrams look like the circuit breaker is all there is. Also looks like if the light turns on, the pump should be seeing voltage. Everything else works? Quite a few things on that same circuit breaker.
When you say it's not running, you mean you have no water? You don't hear the pump? Have you confirmed the pump isn't quietly running or something? (The ol' fill valve set to "city fill" trick comes to mind...)
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Tim.
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11-11-2016, 08:40 PM
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#3
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Winnebago Master
Join Date: Sep 2007
Posts: 724
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My pump is not running so no water when faucet is turned on. No manipulation of any water valves.
Cannot find any fuses on back of main inside panel where switch is located. Maybe a relay there?
Verified pump not running by touching it.
Everything else works.
__________________
01 WINNEBAGO 35U W20.8.1L SW Wa, Hi. Good Sam, SKP. AMSOIL fluids. BANKS ecm program. SCAN GAUGE II w/ Ally temp. 2 LIFELINE GPL-6CT AGM Batts on their sides. TST tptts. K&N panel air filter. AERO mufflers. TAYLOR plug wires. ULTRA POWER track bar. KONI fsd shocks, toad '14 smart car
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11-11-2016, 10:15 PM
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#4
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Winnebago Master
Join Date: Apr 2003
Location: Skiatook, OK
Posts: 1,467
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DAN L check and make sure one of the water pump switches is not stuck in the middle position.
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Grant & Pat
2014 Adventurer 35P 
2021 Rapid Red 4dr Bronco OBX
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11-12-2016, 12:15 PM
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#5
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Winnebago Master
Join Date: Sep 2007
Posts: 724
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Quote:
Originally Posted by grtharris
DAN L check and make sure one of the water pump switches is not stuck in the middle position.
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No joy from either switch 
__________________
01 WINNEBAGO 35U W20.8.1L SW Wa, Hi. Good Sam, SKP. AMSOIL fluids. BANKS ecm program. SCAN GAUGE II w/ Ally temp. 2 LIFELINE GPL-6CT AGM Batts on their sides. TST tptts. K&N panel air filter. AERO mufflers. TAYLOR plug wires. ULTRA POWER track bar. KONI fsd shocks, toad '14 smart car
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11-12-2016, 07:28 PM
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#6
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Winnebago Master
Join Date: Dec 2009
Location: Out there, somewhere
Posts: 1,742
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Well,
Just a thought but, on my coach, an '04 Itasca Horizon 36GD with the 36GD with the C-7 CAT, there is an in-line fuse for the water pump, right at the water pump itself. It's only a few inches from where the wires enter the pump. I don't know if they're all like that but, mine is. Maybe worth a check.
Scott
__________________
2004 ITASCA HORIZON 36GD, 2011 GMC Sierra 1500 4x4 Toad '08 GL 1800 Gold Wing 
Retired-29.5 yrs, SDFD, Ham - KI6OND
Me, Karla and the Sophie character, (mini Schnauzer)
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11-12-2016, 10:34 PM
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#7
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Winnebago Master
Join Date: Sep 2007
Posts: 724
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Update:
Thx for the help!
Turns out the pressure switch in the water pump failed.
A new shurflo 4008 pump fixed the problem.
$99 at cw.
__________________
01 WINNEBAGO 35U W20.8.1L SW Wa, Hi. Good Sam, SKP. AMSOIL fluids. BANKS ecm program. SCAN GAUGE II w/ Ally temp. 2 LIFELINE GPL-6CT AGM Batts on their sides. TST tptts. K&N panel air filter. AERO mufflers. TAYLOR plug wires. ULTRA POWER track bar. KONI fsd shocks, toad '14 smart car
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