Numatic

Numatic Carpet Cleaners Error Codes

Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.

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E1
Machine will not spray solution; display shows E1 shortly after trigger is pulled.
Solution Pump Supply Fault
E10
Display shows E10; machine will not start and an earth/ground fault indicator may be lit (on models with RCD/GFCI).
Earth Leakage / Ground Fault Detected
E2
Brush motor does not run; display shows E2 when brush switch is turned on.
Brush Motor Overload or Open Circuit
E3
Machine stops and displays E3 after a short period of use; body feels unusually warm.
Thermal Overload / Overtemperature Protection
E4
Display shows E4 and machine will not start extraction; recovery tank is nearly full.
Recovery Tank Full Sensor Fault
E5
Display shows E5 and suction motor does not start when power is turned on.
Vacuum (Suction) Motor Fault
E6
Display shows E6; machine powers on but none of the functions (pump, brush, suction) will start.
Main Control PCB Fault / Low Voltage Supply Error
E7
Display shows E7 when the solution trigger is pressed; no spray and audible click from handle but no pump action.
Trigger Input / Handle Switch Fault
E8
Display shows E8 and brush speed is erratic or does not respond to speed settings.
Brush Motor Speed Feedback Fault
E9
Display shows E9; machine beeps and shuts down when solution tank is low or recently refilled.
Solution Tank Level Sensor Fault
Symptom
Brush roller does not turn, but brush motor can be heard running or humming.
Brush Drive Belt Failure or Slippage
Symptom
Brush roller turns intermittently or stops under light load.
Brush Motor Torque Loss
Symptom
Carpet cleaner leaves streaks or uneven cleaning lines on the carpet.
Uneven Solution Distribution or Brush Contact
Symptom
Excessive water left in carpet after cleaning; poor extraction performance.
Low Extraction Efficiency
Symptom
Foam or dirty water being drawn into the vacuum motor area or exhaust.
Foam Ingestion / Overfilling Recovery Tank
Symptom
Handle or wand becomes unusually hot during extended use.
Overheating of Electrical or Hydraulic Components in Handle
Symptom
Loud grinding or screeching noise from brush area during operation.
Brush Bearing or End Cap Failure
Symptom
Machine does not power on at all; no lights or sounds.
No Mains Power to Unit
Symptom
Machine shuts off unexpectedly during use and restarts after cooling.
Thermal Cut-Out Activation
Symptom
Machine trips household circuit breaker or blows fuse when switched on.
Electrical Short or Overcurrent
Symptom
Machine vibrates excessively or feels unstable when the brush is running.
Brush Imbalance or Mounting Fault
Symptom
No spray from wand or floor tool, but pump motor can be heard running.
Solution Flow Restriction
Symptom
No suction at the floor tool or wand; motor can be heard running but little or no airflow.
Suction Path Blockage
Symptom
On models with separate accessory sockets, external wand tools do not operate correctly when connected.
Accessory Port Flow or Suction Fault
Symptom
Power indicator lights but none of the functions (pump, brush, suction) operate when their switches are pressed.
Low Voltage Control Circuit Failure
Symptom
Pump is very noisy or rattling during operation, with pulsing spray at the tool.
Solution Pump Cavitation / Air Ingress
Symptom
Reduced suction and loud whistling noise from lid area of recovery tank.
Air Leak at Recovery Tank Seal
Symptom
Solution continues to spray for several seconds after releasing the trigger.
Delayed Solution Shut-Off
Symptom
Solution drips from spray jets even when pump is off and trigger is not pressed.
Leaking Solution Valve or Check Valve
Symptom
Solution tank level appears to drop very quickly compared to normal use.
Excessive Solution Flow
Symptom
Solution tank remains full; very little solution is used even after extended cleaning.
Insufficient Solution Delivery
Symptom
Strong burning smell from machine during use, sometimes accompanied by smoke.
Motor Overheating or Electrical Burning
Symptom
Strong musty or unpleasant odour from exhaust air during use.
Contaminated Recovery System or Filters
Symptom
Unusual high-pitched whine from vacuum motor area, louder than normal.
Vacuum Motor Bearing Wear
Symptom
Water leaking from around or under the solution tank.
Solution Tank or Outlet Leak
Symptom
Water leaking from underneath the machine during operation.
Internal Solution Leak
Symptom
Weak spray pattern and reduced cleaning performance; solution dribbles instead of forming a fan.
Worn or Partially Blocked Spray Nozzle
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