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HWH 4 Point Leveling System 500 Series

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#1 DonnaCox



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Posted 28 August 2013 - 10:08 PM

WE have a 2000 Country Coach Allure.  We can level when in park but will not go into travel mode.  When manually leveling coach all up and down arrows function correctly except left rear down button. Troubleshooting guide said may be the height control valve.  The right hcv is newer and probably has been replaced but no records available. Any ideas of problem?

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#2 DickandLois


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Posted 29 August 2013 - 03:23 AM

Hi Donna, Welcome to FMCA.


Your model year coach was manufactured when the 610 Model Computerized leveling system was in production. The 500 system was in production from 1988 to 1993.

Start by checking all the fuses.

The 600 system fuses are a little easier to check.

Look at the back of the control box, there are 4-10 amp fuses, see if one of them is bad.

There are 2 - 5 amp fuses and one 7.5 amp fuse.

The 4 - 10 amp fuses are located in the top, left corner of the control box as you look at it from the rear. under the 9 pin connector, Note ! one of the fuses is just to the right of the other 3 and above the 3 wire connector.

A blown fuse could indicate a problem in the left rear control valve, or wiring. Should the fuses all be good then one would check for a defective connection or broken wire to the left rear control valve.


Should your coach have a 500 series, then the fuse are glass or bladed and located inside the control box / panel and may need to be removed form its mounting to get to the fuses.

There was a major change in the way the systems where built between 500 and 600 models.


This is a link to the manual for your coach and system information for your model and year.






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