02 forest river class a levelling jacks not working

[lacloi143]

Hello I need help on fixing dewald hydraulic jacks
Power light was on at the control board (Dewald DN1255 emergency retract work and retracted . I hear the pump running but any other extend or retract buttons non are working and no noise from the pump running at all .
Please help how to fix this ? Is the control board is broken or at the hydraulic pump and solenoids? How to test either the control or solenoids.
Oh by the way, I tried to find a replacement part for the control board but was no luck if Liftperts still make that same part or if there is a compatible control board at all ?

Any helps from you guys please .
Thank you so much in advance.

 

[bikendan]

It always helps if you posted the brand and model number of your RV.
Especially for a 23 year old RV

 

[lacloi143]

2002 George Town forest river class A

 

[bikendan]

2002 George Town forest river class A

Moved thread from the General Tech and Repair section to the Georgetown sub-forum for better help from other Georgetown owners and possible factory support.

 

[5picker]

Do you own a multimeter and know how to use it to test the electrical connections and wiring on the back of the control panel and to other associated components?

 

[lacloi143]

Yes I do have a multi meter but don’t know how to test the control board .