Re: Air Dryer Emergency Bypass Fitting Reply #20 – June 03, 2014, 04:32:51 pm We are discussing air dryer problems that keep coach from building air, mostly from no maintenance.But another different problem that is VERY hard to resolve is when an un-serviced air dryer lets its desiccant turn to powder and the white stuff goes out into the air system screwing up every valve, including HWH check valves, air brake pedal, etc etc etc. Quote Selected
Re: Air Dryer Emergency Bypass Fitting Reply #21 – June 03, 2014, 05:02:13 pm Tony & Lora, It is not the canister blocking air. In fact the problems often talked about, are not blocking, but a valve in the base that stays open allowing air compressor to pump out into atmosphere instead of pumping into the air tanks. So we don't have enough air to run coach. Resolution is rebuilding the base valves or better just installing a Haldex factory rebuilt air dryer that probably has all new parts inside, including the two new filters. Quote Selected