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Problem
Cause Action
The pump is noisy. There is air in the suction line. Check the water supply. Make sure all
fittings are tight.
The valves are dirty. Contact Customer Service.
The bearings are worn. Contact Customer Service.
The incoming liquid is too hot. Reduce the temperature to below 140°
The pump check valve springs are worn. Contact Customer Service.
There is/has been water in the oil. The oil seal is worn. Contact Customer Service.
The humidity is high. Contact Customer Service.
The plunger packing is worn. Contact Customer Service.
There is water dripping from under The plunger packing is worn. Contact Customer Service.
the pump.
The plunger retainer o-ring is worn. Contact Customer Service.
Oil is dripping. The oil seal is worn. Contact Customer Service.
The pressure is too high and is
released at the unloader or pressure The coils are limed. Delime the coils.
relief valve
The spray nozzle is obstructed. Clean the nozzle.
The machine does not pick up the The solution control valve is leaking. Tighten all fittings on the valve.
cleaning solution.
The screen on the chemical line is dirty. Clean the screen. Replace if damaged.
The gun and the hose are vibrating. The nozzle is obstructed. Clean the nozzle.
The nozzle is not the correct size. Install a new nozzle. Use only a nozzle
recommended for the machine.
There is an air leak around the solution Tighten all fittings on the valve.
control valve.
There is not enough water. Check the water level in the tank.
The check valve in the pump is damaged. Contact Customer Service.
The unloader or pressure relief valve The valve is not correctly adjusted. Contact Customer Service.
is leaking.
The seat is worn or damaged. Contact Customer Service.
The nozzle is dirty. Clean the nozzle.
There is a restriction in the discharge hose. Remove the nozzle and flush the line.
There is a restriction in the coil. Clean the coil.
The burner will not start. The fuel tank is empty. Fill the fuel tank with either #1 or #2 diesel,
or kerosene.
The fuel filter is stopped-up or dirty. Change the fuel filter.
The burner motor does not run. Push the reset button on the burner motor. If
the burner still does not start, contact an
authorized service person.
The burner is not turned on. Turn the switch to the "ON" position (II).
The nozzle is incorrect.
Use the black chemical nozzle.
Mini-Brute II Owner’s Manual Page 13