TROUBLE SHOOTING

Malfunction

Possible Cause

Possible Solution

Pedal assistance not working

1. Under-charged battery.

2. Battery no longer serviceable.

3. Battery charger faulty.

4. Motor electrics or switches damaged / faulty.

1. Charge battery. Follow battery care procedures.

2. Have battery checked. Replace if faulty.

3. Have charger checked. Replace if faulty.

4. Seek diagnosis and repair from authorised service centre.

Reduced range and/or speed

1. Under-charged battery.

2. Battery no longer serviceable.

3. Low tyre pressure.

4. Brakes dragging.

5. Terrain, headwind, etc.

1. Charge battery. Follow battery care procedures.

2. Have battery checked. Replace if faulty.

3. Inflate to recommended pressure.

4. Adjust.

5. Normal.

Gear change (where applicable) rough / not changing

1. Derailleur cables sticking / stretched / damaged.

2. Derailleurs / shifter not correctly set.

1. Lubricate / adjust / replace cables.

2. Adjust.

Chain slip / jumping off sprockets

1. Worn sprockets.

2. Stretched chain.

3. Front sprocket loose / out of true.

4. Sprocket teeth bent / broken.

5. Derailleur / shifter not correctly adjusted.

1. Replace.

2. Replace.

3. Re-true / tighten.

4. Replace.

5. Adjust.

Clicking noises when pedaling

1. Stiff chain link.

2. Loose pedals / bearings.

3. Loose bottom bracket / bearings.

4. Bent bottom bracket or pedal bolt.

5. Loose pedal arm bolts.

1. Lubricate chain.

2. Tighten / adjust bearings.

3. Tighten / adjust bearings.

4. Replace.

5. Tighten.

Grinding noise when pedaling

1. Pedal bearings too tight.

2. Bottom bracket bearings too tight.

3. Rear wheel not straight.

4. Chain too tight.

5. Derailleur dirty.

1. Adjust.

2. Adjust.

3. Align so chain straight.

4. Adjust.

5. Clean and lubricate.

Brakes not effective

1. Pads worn.

2. Pads / discs dirty.

3. Brake cables binding / stretched / damaged.

4. Brakes levers binding.

5. Brakes require adjustment.

1. Replace.

2. Clean and degrease.

3. Lubricate / adjust / replace cables.

4. Clean pivots.

5. Adjust.

Brakes squeal

1. Pads / discs dirty.

2. Brakes not centred.

3. Caliper fasteners loose.

1. Clean and degrease.

2. Centre brakes and adjust.

3. Tighten.

Brakes chatter / vibrate

1. Brake mounting bolts loose.

2. Brakes out of adjustment.

3. Steering head bearings loose.

1. Tighten.

2. Centre brakes and adjust.

3. Adjust bearings.

Wheel vibration / wobble

1. Axle bent or broken.

2. Wheel out of true.

3. Wheel hub bearings loose / not serviceable.

4. Quick-release (if equipped) mechanism loose.

1. Replace.

2. True wheel.

3. Adjust / replace.

4. Adjust.

Steering not accurate

1. Wheels not aligned to frame.

2. Steering head loose / binding.

1. Align wheels.

2. Adjust.

3. Front forks or frame bent.

3. Straighten.

Motor "clicks" / has reduced power and/or shuts off

1. Under-charged battery.

2. Motor internal fault.

1. Charge battery. Follow battery care procedures.

2. Replace.

No power when pedal assistance switched ON

1. Blown fuse.

2. Loose connectors / wiring damage.

3. Faulty switch.

4. Faulty controller.

1. Replace.

2. Check connectors / wiring. Replace as required.

3. Replace.

4. Replace.

Pedal assistance OK, but no display

1. Loose connectors / wiring damage.

2. Faulty controller.

1. Check connectors / wiring. Replace as required.

2. Replace.

Display OK, but no pedal assistance

1. Loose motor connectors / wiring damage.

2. Poor contact at battery terminals.

3. Faulty braking sensor.

1. Check connectors / wiring. Replace as required.

2. Inspect and clean terminals.

3. Replace.

Bicycle runs at full speed without pedalling

1. Faulty crank sensor.

2. Faulty controller.

1. Replace.

2. Replace.

Pedal assistance operating intermittently or not as expected

1. Loose connectors / wiring damage.

2. Faulty controller.

3. Faulty crank sensor.

1. Check connectors / wiring. Replace as required.

2. Replace.

Charger shows "full charge" in an unusually short amount of time

1. Faulty charger.

2. Faulty batteries.

1. Replace.

2. Replace.

Charger indicator not illuminating when charger is plugged into outlet

1. Outlet has no power.

2. Faulty charger.

1. Check charger plugged in and electrical supply ON.

2. Replace.

Charger indicator flashes red and never changes to green

1. Damaged wire from charger to battery.

2. Faulty batteries.

1. Replace charger.

2. Replace.