air pocket doors

[mike semple]

the air pocket doors on our 1995 work fine with the engine running. should they operate on the air compresor switch that supplys the toilet flush air supply while parked with the engine turned off? the doors do not operate without the engine running.

[TechTalk]

Your coach is equipped with three air compressors: 1) an engine-driven compressor that services the entire system anytime the engine is running, 2) a 110-volt compressor that services the entire system when the engine is not running, from electric power supplied by the shore cord or generator, or from the inverter when a 110-volt source is not available, and 3) a 12-volt air compressor that supplies the toilet and certain other selected other small accessories when sources 1) or 2) above are not functioning. From your description, it appears that for some reason the 110-volt air compressor is not supplying air as designed. In short, it appears your 110-volt air compressor system needs to be repaired.

[LARRY WEIKART]

Tech: When did Newell hook up the 110 compressor to the inverter? My 94 does not operate this way. Also, wouldn't Mikes 95 operate off of the 12v compressor if something was amiss with his 110?

[TechTalk]

air pocket doors The quick answer to when the 110-volt compressor was connected to an inverted circuit is sometime between 1994 and now, but we'll check our records and see if we can identify the date. The reason some air powered items do not operate when the 12-volt compressor is the only source of air is that this compressor is of limited capacity and is plumbed to pressurize only a selected list of components. This list has always included the toilet, but apparently the air doors were not included in 1995. Since then, the air doors have been added to the items powered by the 12-volt compressor. Another key system that operates from the 12-volt compressor is the air seals on slide-out coaches. The whole idea is to provide a reasonable level of functionality even when neither the engine is running nor a primary source of 110-volt power is available.