Simpson MINI BRUTE MBII - Manual (Page 12)

Problem Cause Action
HOW TO CORRECT PROBLEMS IN THE MACHINE
The motor will not start Power cord may not be connected. Connect the power cord.
Switch may not be turned "ON". Turn switch to "ON".
Ground fault circuit interrupter did not reset. Reset the ground fault circuit interrupter.
The power cord may be connected
to a dead outlet.
Contact a licensed electrician.
May have a defective motor, GFCI,
or switch.
Contact Customer Service.
The thermal overload switch tripped. Allow motor to cool.
The motor has difficulty starting Circuit may be too long, overloaded, Locate the outlet nearest to the circuit
or is overheating. or conducters may be undersized. panel which can be reached with the cord
supplied with the machine.
Incorrect voltage or frequency. Check the voltage and frequency.
The motor is wet. Contact Customer Service.
The coils are limed. Delime the coils.
The nozzle is dirty. Remove and clean the nozzle.
The pump overheats. The oil level is low. Contact Customer Service.
The pump vibrates. The pump is sucking air. Contact Customer Service.
The pump check valves are dirty. Contact Customer Service.
The pump surges when the trigger There is a leak. Check all fittings. Keep fasteners tight.
gun is off. Contact an authorized service person.
The unloader valve is not adjusted correctly. Contact Customer Service.
The pump is running but the pressure The pump is sucking air. Make sure the water supply is correct.
is low on installation. Ensure that the chemical suction tube
is submerged in the chemical solution.
The pump valves are sticking. Contact Customer Service.
The unloader valve is worn. Contact Customer Service.
The nozzle is not the correct size. Replace the nozzle.
The pump plunger packing is worn. Contact Customer Service.
The pressure is changing. The pump valves are worn. Contact Customer Service.
The pump valves are dirty. Contact Customer Service.
The pump is sucking air. Contact Customer Service.
The pump plunger packing is worn. Contact Customer Service.
The pressure is low after normal use. The nozzle is worn. Replace the nozzle.
The pump check valves are worn or Contact Customer Service.
dirty.
The unloader valve is worn. Contact Customer Service.
The pump plunger packing is worn. Contact Customer Service.
Improper extension cord. Ensure that the extension cord is 14 gauge
and no longer than 25 ft.
Inadequate water supply. Ensure that the water faucet is fully open
and the hose is not leaking or kinked.
Page 12 Mini-Brute II Owner’s Manual