Safety: Stop the motor, unplug from a dry outlet, shut off the water, point the gun safely away from people and squeeze the trigger to release trapped pressure before removing a tip, filter or hose. Never run the pump without flowing inlet water or place any body part in the spray.
Applies to this exact equipment
Greenworks GPW2300 (5107502 family), electric 120 V / 60 Hz US configuration. Confirm the unit label and installed nozzle/GFCI type before applying this procedure.
DIAGNOSE THE CAUSE · APPLY THE FIX · CONFIRM THE RESULT
Find the cause and fix it
Jump to your symptom: 01 · Gun emits no stream while motor sounds normal02 · Water at washer inlet but none at gun03 · Pump housing leaks heavily or drive will not move water
01
Gun emits no stream while motor sounds normal
HOW TO CHECK & CORRECT THIS CAUSE
- With washer switched off, confirm tap flow by disconnecting hose, then reconnect and clean faucet hose inlet screen.
- Squeeze gun trigger to purge before powering.
How to tell it is fixed: Continuous unpressurized water exits gun, followed by normal high-pressure spray.
02
Water at washer inlet but none at gun
HOW TO CHECK & CORRECT THIS CAUSE
- With supply off and pressure relieved, check high-pressure hose for kink/obstruction, gun trigger lock, wand coupling and spray tip.
- Clear the blockage or replace blocked accessory with matching unit.
How to tell it is fixed: Water exits gun with tip fitted correctly.
03
Pump housing leaks heavily or drive will not move water
HOW TO CHECK & CORRECT THIS CAUSE
- Stop and have model-rated pump/head assembly professionally repaired.
- Never run pump dry as a test.
How to tell it is fixed: Normal output after internal fault repaired.
Technical reference and applicability
Source: Source manual or manufacturer model specifications ↗
Applicable sections: pp. 15 garden-hose preparation, 17 water priming, 22 nozzle cleaning, 24 no-water faults
The step order and owner-level isolation sequence are editorial diagnostics based on the cited facts; they are not represented as a quoted factory repair procedure. Never assume an internal repair part is compatible without revision-specific documentation.