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Leveling..indicator light..there is a loud whistle when you turn key…

Customer Question
hydaulic leveling jacks won't retract...
hydaulic leveling jacks won't retract, power is on, red indicator light is on saying jack is down and there is a loud whistle when you turn key on or accessory. All fuses are good
two relays are good and it still will not retract
Submitted: 12 years ago.Category: RV
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Answered in 12 minutes by:
4/10/2010
RV Mechanic: Robert, RV Mechanic replied 12 years ago
Robert
Robert, RV Mechanic
Category: RV
Satisfied Customers: 24,316
Experience: 23 yrs. RV experience including Cummins North West, Country Coach, Monaco Coach - vendor certified.
Verified

Hi There!!!

 

Thanks for Choosing Just Answer...

 

Who is the manufacturer of the Jacks? IF it is a power gear system there should be a small p/n number on the pad that will help.... Also make sure the coach is in gear and the parking brake is set....

 

Thanks, Robert

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Customer reply replied 12 years ago

it is a power gear p/n 500456

RV Mechanic: Robert, RV Mechanic replied 12 years ago

OK

 

Just to verify I believe on this model there are 4 fuses on the leveling control box. On this box should be 3 plugs, one for main power, one for pump and one for pad. Did you find this control box and check all the connections and fuses??

 

Thanks, Robert

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Customer reply replied 12 years ago
yes
RV Mechanic: Robert, RV Mechanic replied 12 years ago

OK

 

IF the pump is NOT running below are the troubleshooting procedures as it can be a number of things. Make sure the fluid is full also. On the older style pads a fuse is located on the back of the control pad but I believe yours is a newer pad... Hope this helps... If everything checks out it could be the control box...

 

 

Thank You!!! Please hit ACCEPT for my efforts, Positive feedback and BONUS welcomed!!!

 

JACKS WILL NOT EXTEND, PUMP IS NOT RUNNING

PROBABLE CAUSE

CORRECTIVE ACTION

(OLD CONTROL) FUSE BLOWN

REPLACE FUSE XF1 ON TOUCH PAD

MOTOR SOLENOID WIRE DEFECTIVE

CHECK FOR POWER AT THE BLUE SOLENOID SIGNAL WIRE WHILE JACKS DOWN BUTTON IS PUSHED. IF NO POWER, CHECK FUSES, WIRES, AND CONTROL..

NO POWER FROM BATTERY TO PUMP

CHECK FOR +12 VDC AT THE LARGE BATTERY TERMINAL OF THE SOLENOID, IF NO VOLTAGE RECHARGE BATTERY OR REPLACE POWER CABLE.

BAD GROUND TO PUMP MOTOR

ADD NEW GROUND CABLE FROM PUMP MOTOR TO CHASSIS BATTERY; CHECK CHASSIS GROUND CONNECTION

MOTOR SOLENOID FAULTY

CHECK FOR POWER AT THE BLUE SOLENOID SIGNAL WIRE WHILE JACKS DOWN BUTTON IS PUSHED. IF NO POWER, CHECK FUSES, WIRES, AND CONTROL. IF POWER IS PRESENT, CONNECT +12 VDC TO MOTOR SIDE TERMINAL OF SOLENOID; IF MOTOR RUNS, REPLACE SOLENOID

PUMP MOTOR FAULTY

CHECK FOR CONTINUITY BETWEEN THE MOTOR AND GROUND. CONNECT +12 VDC TO MOTOR SIDE TERMINAL OF SOLENOID; IF MOTOR DOES NOT RUN, REPLACE PUMP

FAULTY CONTROL

IF ALL PREVIOUS CAUSES AND ACTIONS DO NOT APPLY REPLACE CONTROL

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Customer reply replied 12 years ago
it extends it will not RETRACT...
RV Mechanic: Robert, RV Mechanic replied 12 years ago

OK

 

Sorry about that.....

 

Here are the troubleshooting steps......

 

 

ALL JACKS WILL NOT RETRACT OR WILL NOT RETRACT FULLY

PROBABLE CAUSE

CORRECTIVE ACTION

DUMP VALVE FUSE BLOWN

OLD CONTROL:REPLACE FUSE XF2 ON TOUCH PAD

NEW CONTROL: REPLACE ‘DUMP VALVE' FUSE ON CONTROL BOX

SYSTEM OVERFILLED WITH FLUID

DRAIN FLUID TO RECOMMENDED LEVEL-SEE TIP 140

PUMP HARNESS FUSE BLOWN

LOCATE FUSE ON HARNESS WITHIN 18" OF PUMP IN THE CORROGATED HARNESS. REPLACE FUSE WITH 10 AMP MINI FUSE

SYSTEM IS OPERATING AS IF THE JACKS ARE ALREADY RETRACTED

CHECK FLOAT SWITCH OPERATION. CHECK THE FLOAT SWITCH FOR PROPER ORIENTATION. CHECK THE SYSTEM FOR OVERFILLING. CHECK FOR CONTINUITY ON BROWN WIRE FROM FLAOT SWITCH TO CONTROL. CHECK FOR 12 VDC TO FLOAT ON RED WIRE.

DUMP SOLENOID COIL GROUND WIRE FAULTY

PIN #4 OF THE 8 PIN CONNECTOR COMPLETES CIRCUIT CHECK FOR CONTINUITY, IF NONE REPLACE WIRE (SWITCHES TO GROUND WITH BUTTON PUSHED)

DUMP SOLENOID COIL +12 VDC WIRE FAULTY

CHECK FOR +12 VDC AT THE COIL TERMINAL. IF NONE CHECK FUSE AND WIRE

DUMP SOLENOID COIL DEFECTIVE

CHECK COIL FOR CONTINUITY, IF NONE REPLACE SOLENOID

DUMP SOLENOID VALVE FAULTY

REPLACE VALVE

FAULTY CONTROL

Thank You Please hit ACCEPT for my efforts, Positive feedbacak and BONUS welcomed!!!

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Customer reply replied 12 years ago
dump celinoid wiring good, dump fuse good, dump cellinoid--how do i know and what is my solution right now
RV Mechanic: Robert, RV Mechanic replied 12 years ago

Sounds like you could have a bad controller if you followed all the troubleshooting steps. I have seen these go bad and before replacing I would try to get a hold of power gear, I have heard they are not the fastest to return calls but want to make sure nothing is being missed before dishing money out on a new control box.

 

 

Thanks, Robert

Robert
Robert, RV Mechanic
Category: RV
Satisfied Customers: 24,316
Experience: 23 yrs. RV experience including Cummins North West, Country Coach, Monaco Coach - vendor certified.
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