When you say a bunch of relays, there should be two that look exactly alike and have two big lugs and two small lugs. One relay is for providing power to the leveling system and the other provides power to the hydraulic pump. The large lugs carry the twelve volt load and the smaller ones energize the relay with twelve volts and ground. Does the hydraulic pump run at all? The pump is located directly down and in front of the condensor behind the bumper. Also, next to the pump is the hydraulic tank for the leveling system, check that the fluid level is within an inch of the top. Fill with transmission fluid only. If the pump doesn't run, check the connections at the two relays I mentioned earlier. Sometimes they get corroded and cause problems. Go to the HWH web site and download the operation manual for the HWH 400 system. This is the same as the A&E system since HWH took over the A&E system. They also have a parts manual available. I have used both manuals and they are very good. Let us know how it goes. Also, those two relays are the same part number and can be found at NAPA if either one is bad.
John
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2004 Holiday Rambler Presidential 5th Wheel 30SCD
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