I am having difficulty with my new Lezyne pump. Screw on chuck to Presta valves.

Pump is almost brand new.

Pressure makes it difficult to pump. Gauge registers dramatically high with any pump action and no air is actually going into tire. Seems to work better on tires that are low or almost empty.

Any help would be appreciated. Have sent a message to Lezyne tech support provided above. May take a while to get a response.

Thanks