06-28-2023, 10:03 AM
The switch for the 110v compressor is typically on the dash. When you say nothing is happening do you mean the air pressure gauge on the dash doesn't rise? The brake tanks will fill first, then the suspension and the other air operated items. Once the AUX AIR gauge on the dash gets up above 90, then you should be able to level the coach manually using the HWH keypad or with the ignition on put it in travel mode. The 110v compressor may not raise the drive axle bags up enough to get the fenders off the tires as it typically shuts off at 90-95 psi but it certainly should pump up to the 90 psi level on the dash AUX AIR gauge.
The engine compressor is really needed to supply the volume of air needed by the suspension.
Shop air at the rear fitting should, depending on the size of the air compressor, both pressure and volume, fill the suspension air bags and may or may not be able to lift the rear of the coach. If the shop air is 240v it should be capable of lifting the coach, 110v may if you give it enough time but it will likely be slow due to the volume restrictions.
The engine compressor is really needed to supply the volume of air needed by the suspension.
Shop air at the rear fitting should, depending on the size of the air compressor, both pressure and volume, fill the suspension air bags and may or may not be able to lift the rear of the coach. If the shop air is 240v it should be capable of lifting the coach, 110v may if you give it enough time but it will likely be slow due to the volume restrictions.