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FAQs DIY Info Media

DIY Troubleshooting Info

Below is a list of the more common issues customers see in regard to Everflo pumps, as well as the most likely solutions to get your pump up and running again. If you don't see your particular issue below, fee free to contact our customer support staff and they'd be happy to help you.

• PUMP WILL NOT TURN ON

Bad Electrical Connection - Verify connections are tight and battery posts are free of corrosion.

Short in Wires - Check condition of wire insulation and replace if gaps or holes are present..

Locked Drive - Replace the diaphragm assembly.

Faulty Pressure Switch - Replace the pressure switch assembly.

Incorrect Voltage - Check voltage and verify within range ±10%.

Fuse Blown - Check and/or replace the fuse.

• PUMP WILL NOT PRIME

Out of Product (Fluid) - Refill the supply container/sprayer tank.

Inlet Air Leak - Tighten the hose fittings and/or replace cracked fittings.

Inlet/Outlet Tube Restriction - Remove any restriction from the inlet or outlet tubes.

Incorrect Voltage - Check voltage and verify within range ±10%.

Clogged Intake Valves - Remove obstruction from valves.

Clogged Intake Tube - Remove obstruction from tube.

• LOW PRESSURE/FLOW

Worn Wobble Plate - Replace the diaphragm assembly.

Word Diaphragm - Replace the diaphragm assembly.

Worn Pressure Switch - Replace pressure switch assembly.

Inlet/Outlet Tube Restriction - Remove restriction.

Incorrect Voltage - Check voltage and verify within range ±10%.

Clogged Intake Valves - Remove obstruction from the valves.

Clogged Intake Tube - Remove obstruction from the tube.

Inlet Air Leak - Tighten loose fittings, replace cracked fittings.

• PUMP LEAKS

Loose Fasteners - Tighten fasteners and hose clamps.

Pump Seals Degraded - Replace the pump head assembly.

Leak in Diaphragm - Replace the diaphragm assembly.

• PUMP CYCLES WITH NO DEMAND

Leak in the System - Tighten leaking hose clamps and fittings.

Faulty Pressure Switch - Replace the pressure switch assembly.

Incorrect Voltage - Check voltage and verify within range ±10%.

Air Trapped in System - Purge the air from the system.

• ROUGH OPERATION

Flexible Mounting Surface -Install your pump on a rigid mounting surface.

Loose Pump Head - Tighten fasteners.

Compressed Base Feet - Decompress base feet.

Rigid Plumbing - Replace rigid plumbing with flexible hoses.