Nilfisk-Advance EcoFlex BR 1100 S Service Manual

Also see for EcoFlex BR 1100 SC: Instructions for use Instructions for use - original instructions Instructions for use Service manual

Contents

Recovery System 71Service Manual – Condor ™ EcoFlex™, BR 1100/1300 EcoFlex ™TroubleshootingIf water flows around the ends of the squeegee tool instead of being pulled into the tool, the vacuum systemis not working correctly. This is usually due to either vacuum leaks, or restrictions in the squeegee tool,vacuum hoses or float cage.Problem Cause CorrectionPoor water pickup * Vacuum leak(s) due to:• Leaky drain hose cap• Leaky hose• Bad gasket• Damaged tank• Check the drain hose cap and tighten/replace asnecessary.• Check the squeegee and recovery tank hoses andtighten/replace as necessary.• Check the gaskets and replace as necessary.• Check the recovery tank for damage.Restrictions due to built-updebris in the squeegee tool,vacuum hoses or float cage1. Check the squeegee tool, vacuum hoses and floatcage for any accumulated dirt or debris and cleanas necessary.2. Check the vacuum system airflow pathwaywherever the airflow is forced to make a sharpturn for any accumulated dirt or debris and cleanas necessary.Vacuum motor(s)will not run.Vacuum motor overload(error code 09 displayed)1. Check for debris in the vacuum motor(s).2. Check for worn carbon brushes - replace brushes.3. Defective motor bearings - repair or replace.4. Check for a short circuit in the vacuum motor orwiring - repair or replace.Vacuum motor contactorcoil overload (error code 10displayed)1. Check for a K1 coil wiring problem or short circuit(wire colors VIO and BLU).2. Check the coil resistance. If the coil resistance isbelow 80 ohms, replace the coil.Vacuum motor open (errorcode 29 displayed)1. Check for disconnected vacuum motor wiring.2. Check for an open circuit in the vacuum motorwiring or for a defective motor.3. Check for 36 Volts at the vacuum motor. If 0 Volts,replace the vacuum motor contactor K1.Vacuum motor contactorcoil open (error code 30displayed)1. Check for an open circuit in the K1 coil and wiring(wire colors VIO and BLU).2. Test for 36V at the K1 coil. If 0 Volts, check the A2control board assembly.K1 Vacuum motor contactorcoil short to ground (errorcode 31 displayed)1. Disconnect the K1 coil wiring (wire colors VIO andBLU) and check to see if the code disappears.− If the code disappears, replace the motorcontactor.− If the code does reappear, test the wiring fora short back to the battery ground. Repair orreplace the defective wire.2. If the above test doesn’t remove the code,substitute a new A2 control board assembly.* A vacuum leak below the waterline will create turbulence in the recovery tank, causing water to enter thevacuum motor(s)