3. Why can't my unit reach high pressure?
Symptom Cause Solution
Unit does not
reach high
pressure.
Diameter of garden hose is too
small.
Replace with a 1" (25 mm) or 5/8" (16 mm) garden hose.
Water supply is restricted. Check garden hose for kinks, leaks and blockage.
Not enough inlet water supply. Open water source fully.
Water inlet filter is clogged. Remove filter and rinse in warm water.
Power nozzle is in low-pressure
position.
Turn power nozzle to high-pressure position.
Pump is sucking air. Check that hoses and fittings are airtight. Turn "OFF" machine,
and purge pump by squeezing trigger gun until a steady flow of
water emerges through the nozzle.
4. Why does the pressure vary from high and low?
Symptom Cause Solution
Output pressure
varies high and
low.
Not enough inlet water supply. Turn water on fully. Check garden hose for kinks, leaks or
blockage.
Pump is sucking air. Check that hoses and fittings are airtight. Turn "OFF" machine,
and purge pump by squeezing trigger gun until a steady flow of
water emerges through the nozzle.
Water inlet filter is clogged. Remove filter and rinse in warm water.
Discharge nozzle is obstructed. Blow out or remove debris with a fine needle.
Calcified gun, hose or power
nozzle.
Run distilled vinegar through detergent tank.
5. Why is there no detergent coming out?
Symptom Cause Solution
No Detergent Detergent container is empty. Add more detergent.
Detergent bottle or suction tube not
properly connected.
Check connections.
Detergent is too thick. Dilute detergent.
Filter on detergent suction tube is
clogged.
Run warm water through filter to remove debris.
Damaged or clogged detergent
suction tube.
Remove obstruction or replace detergent suction tube.
Nozzle is in high-pressure position. Turn nozzle tip to low-pressure position.
Discharge nozzle is obstructed. Blow out or remove debris with a fine needle.
6. Why does the garden hose connection leak?