Hwh computer repair

February 24, 2021, 11:24:59 pm

So I purchased my coach in June 2020. Coach had been stored under shade but suspect that it had been exposed to I static discharge event. There was no visible damage but the ECM and ride/slide computer was inoperable. Thru the much appreciated help of this forum I was able to activate both the lift and travel circuits for needed maintenance and return across the states. In November I shipped the computer for repair to HWH. Getting a return number wasn't a problem and I feel the repair costs were very reasonable. I received it back a couple of weeks ago and was just too busy with my brothers Foretravel distractions to install. I'm at a stopping point and got back on the coach today. It was painfully clear that my system was finally powering up but left rear dump solenoid clicks but doesn't do anything. And the more painful problem was that the travel solenoids never powered up. I made a couple of desperate pleas for help and went back out to the coach to close it up and fight another day. Very disappointing. While picking up I noticed and remembered that there is a diagram of fuses/location on the inside cover that has been removed for the last couple of weeks. Located the travel fuse location and the fuse is under the removable circuit board. Probed the back side (exposed)of the circuit board and verified that my problem was a failed fuse. It takes a 7.5 amp fuse and that happens to be what I had used prior to protect the system with the computer removed. Never had a fuse blow for the past 6500 miles operating it this way. Disconnected the mount screws for the circuit board and was able to swing down enough to replace fuse. Travel solenoids locked it and went to travel position. Still have to sort out the rear six pac but it was mentioned by a member far smarter than me that it could be affected by mud dauber nests. I've only removed maybe 30 lbs of dauber nests so this is probably the issue. Rear six pac leaks down slowly so I'll use this as a good excuse to dig into them, probably literally. Such a rewarding feeling seeing the coach getting closer back to being fully functional. Sure am not going to miss going down in the bay to operate level systems externally. Great day No clue on slide function, but at least I can see all four locks are engaged. Different battle for a different day. Slide currently sealed closed.
Scott

Re: Hwh computer repair

Reply #1 – February 25, 2021, 12:02:16 am

Quote from: dsd – February 24, 2021, 11:24:59 pm

Still have to sort out the rear six pac but it was mentioned that it could be affected by mud dauber nests.

See thread linked below for my experience with plugged up 6-pack exhaust ports.

Mason Bee Plugs in 6-Pack Exhaust Ports

Re: Hwh computer repair

Reply #2 – February 26, 2021, 12:40:40 pm

Dirty little bugs.

Re: Hwh computer repair

Reply #3 – February 26, 2021, 12:48:12 pm

Gently cleaned in my opinion a very small light amount of nest. Became aware this probably wasn't it but powered up and works great. Performed my very first raise, dump, auto level since I purchased coach. Other than pro Actively changing 20 year old bags and replacing several lines and getting the HWH computer rebuilt everything seems to work. Amazing. Now to the slide. Have opened and closed several times but never with the computer controls. I'm sure I'll start spending money on repairs for it. Whole different can of worms.
Scott

Re: Hwh computer repair

Reply #4 – February 26, 2021, 02:20:57 pm

Think of it as "Your Hobby". Helps to ease the financial pain, and to explain the insanity to onlookers.

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