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  1. J

    Karcher pressure fault or is it a normal thing?

    Only other thing I can think of is that when there is low backpressure at the lance the pressure washer starts sucking up the from detergent pipe, you can tell when it's doing this as it makes a different noise. It does this so you can apply detergent at low pressure with a rotary brush or the...
  2. J

    Karcher pressure fault or is it a normal thing?

    Did you try the normal jet lance again after using the snowfoam lance, and did it work? Because mine does something similar and it's usually because there is air in the pump. It can be a pain to bleed sometimes.