Troubleshooting Chart, Problem, Cause, Solution

TROUBLESHOOTING CHART

WARNING

To reduce the risk of serious bodily injury, including fluid injection, splashing in the eyes or on the skin, or injury from moving parts, always follow the Pressure Relief Procedure Warning before proceeding.

Problem

-0w pressure and/or ,ump runs rough

Nater leakage from under pump manifold

Nater in pump

?equent or Iremature failure of he packings

Strong surging at the nlet and low pressure on the discharge side

Jnit will not start

Cause

Worn or wrong size tip,

Inlet filter clogged.

Worn packings, abrasives in water or natural wear.

Inadequate water supply. Coupling slippage.

Fouled or dirty inlet or discharge valves. Even a small particle can cause the valve to stick.

Restricted inlet.

Worn inlet or discharge valves.

Leaking high pressure hose.

Worn packings.

Humid air condensing inside crankcase. Worn packings.

Oil seals leaking.

Scored, damaged or worn plungers. Abrasive material in the fluid being pumped.

Inlet water temperature too high.

Overpressurizing pump.

Excessive pressure due to partially plugged or damaged tip.

Pump funning too long without spraying.

Running pump dry.

Foreign particles in the inlet or discharge valve or worn inlet and/or discharge valves.

Unit not plugged in.

Electrical service off/GFCI activated.

Thermal overload has tripped.

Solution

Replace with tip of proper size.

Clean. Check more frequently.

Check filter. Replace packings. See PUMP SERVICE.

Check water flow rate to pump.

Tighten or replace.

Clean inlet and discharge valve assemblies. Check filter.

Check garden hose, may be collapsed or kinked. Replace worn valves.

Replace high pressure hose.

Install new packings. See PUMP SERVICE.

Change oil as specified in MAINTENANCE. Install new packings. See PUMP SERVICE. Install new oil seals. See PUMP SERVICE.

Install new plungers. See PUMP SERVICE. Install proper filtration on pump inlet plumbing.

Check water temperature; may not exceed 160°F

Do not modify any factory-set adjustments. See

EQUIPMENT MISUSE HAZARD.

Clean or replace tip. See Installing and Changing Spray Tips.

Never run pump more than 10 minutes without spraying

Do not run pump without water.

Clean or replace valves. See PUMP SERVICE.

Check power cord.

Check fuse/circuit breaker. Check for proper grounding.

Press reset button on motor.

Chemical injector will Chemical injector clogged. lot siphon

Adjustable nozzle completely closed (826).

Low chemical level.

Wrong tip (1235).

Disassemble chemical valve and clean. Check and clean chemical hose and filter.

Turn control ring on nozzle clockwise to cause drop in pressure.

Check level of chemical Install chemical tip.

308-518 9

308-518, 826, 800-093, 1235, 800-268 specifications

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