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NO-ETA · 03-20-2023, 07:35 AM

2020 Phaeton 40QBH. Slides have been serviced regularly.

Coach is having intermittent issues with front slides becoming unresponsive on seat switch, main control pad in bedroom, and emergency switch outside in electrical box. The remedy has been to wait 10 min or power cycle the house breaker. Anybody else experience this?

..not sure if connected, but jacks have been doing the same thing after being extended for a week or so.

Ray,IN · 03-20-2023, 07:59 PM

FWIW, over 80% of all 12V issues are the result of a poor/missing ground. When time elapses without using a 12V item the ground connection can corrode and create high resistance or completely open the ground connection.

windfall96 · 03-21-2023, 10:22 AM

Your post describes a typical master electric solenoid failure. If an hwh hydraulic system see below.. Eventually they just die. On my 2020 32SA the Trombella part # is 684-1211-012. Available on amazon. But look at your part no. On my rig the intermittent solenoid was installed in the masre location and oddly was labeled master. The intermittent # is 684-1261-212 but the master #above will work in both locations

Search Lt Dan posts on this forum as he has a good troubleshooting procedure

garykk · 03-21-2023, 12:24 PM

Quote:

Originally Posted by Ray,IN

FWIW, over 80% of all 12V issues are the result of a poor/missing ground. When time elapses without using a 12V item the ground connection can corrode and create high resistance or completely open the ground connection.

I traced our problem on our Phaeton to a poor ground. Tiffin at the time used one small bolt to ground the hyd pump to the frame. I found ours to be loose.

Ray,IN · 03-22-2023, 06:06 PM

Quote:

Originally Posted by garykk

I traced our problem on our Phaeton to a poor ground. Tiffin at the time used one small bolt to ground the hyd pump to the frame. I found ours to be loose.

I'm guessing your MH has the HWH 610 central ground system too; that's how all ground wires are fastened, and why it's called "central ground".

NO-ETA · 03-23-2023, 05:15 AM

Thanks for the replies! I checked ground and have a tight connection there. Ordered solenoids and backup. I’ll install as soon as I get them.

azpete · 03-23-2023, 09:16 AM

gary is on a good track. the two bolts that hold the pump assembly are the main ground to the chassis for the hwh systems. some add an extra battery cable from the pump to the chassis to help with this problem.
this is the first place i check when i look at intermittent problems.