HWH jacks won't dump air before deploying
I have a 2019 LADP on a Sparten chassis. When we first bought it it would hurt and puff like a steampunk dream while driving. The Hadley air level system was very noisy. Back in June I got it to NIRVC in GA and they found a recall for that and performed the recall. Since then there are no more hissing and blowing noises, but when activating the HWH jacks, the air won't dump, nor will it refill the bags when retracting the jacks. I can lower the coach from the Hadley panel and return it to ride height from there, but the HWH panel doesn't. Everything else about the HWH system is working normally. After two unsuccessful attempts at a fix, Sparten has said it's a known problem on K3 chassis but they haven't identified a fix. I'm a tad frustrated since this started in June. Has anyone else had this issue?