What to do if the brush head cannot be raised or lowered on a Kärcher Floor Machine?
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spayneSep 7, 2025
If the brush head on your Kärcher Floor Machine cannot be raised or lowered:
– Check and replace fuse (F4) if necessary.
– Ensure the lifting mechanism is not blocked.
– Test the program selector switch (S9) and replace if necessary, using test mode.
– Test the lifting motor (M20) and replace if necessary, using test mode.
– Test the lifting module printed circuit board (A4) and replace if necessary, using test mode.
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Susan DaltonNov 25, 2025
What to do if there is no or too little water supply in Kärcher Floor Machine?
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danielmaynardNov 25, 2025
If your Kärcher Floor Machine has no or too little water supply, try the following:
– Top up the fresh water tank.
– Check and clean the water filter.
– Check the water hose to the brush head, removing any blockages or kinks.
– Test and replace the program switch (S9) if necessary, using test mode.
– Test and replace the float switch of the dirty water tank (S11) if necessary, using test mode.
– Test and replace the level sensor of the fresh water tank (B2) if necessary, using test mode.
– Test the function of the metering valve (Y2) and replace if necessary, using test mode.
– Test the water pump (M5) and replace if necessary, using test mode.
– Check cable connections and replace defective cables.
– Test the cleaning module printed circuit board (A3) and replace if necessary, using test...
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Carl VasquezNov 19, 2025
Why won't my Kärcher Floor Machine unit start?
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christinajonesNov 19, 2025
If your Kärcher Floor Machine unit won't start, here are some things you can check:
– Ensure the central battery plug (X1) is correctly inserted, check it, and replace it if necessary.
– Check, charge, or replace the battery (G1).
– Inspect fuses F1 and F1, replacing any that are defective.
– Check or replace the key switch (S0).
– Check, unlock, or replace the EMERGENCY STOP switch (S1).
– Test and potentially replace the seat sensor (S10) using the tester mode.
– Test and potentially replace the program switch (S9) using the test mode.
– Test and potentially replace the direction of travel switch (S2) using the test mode.
– Check or replace the main relay (K1).
– Test and potentially replace the magnetic sensor of the drive pedal (B1) using the test mode.
– Test the connection cable mod...
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Paul CookSep 18, 2025
Why main and side brushes do not turn on Kärcher BR 250 R Floor Machine (RI version)?
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Kelly AlvarezSep 18, 2025
If the main and side brushes on your Kärcher Floor Machine (RI version with pre-sweeping unit or side brush option) do not turn:
– Check for any mechanical blockage and repair it.
– Check and replace the program switch (S9) if needed.
– Check and replace the pre-sweeping system (S6) switch if needed.
– Check and replace the clean module pre-sweeping system (F6) if needed.
– Check and replace the side brush motor (M10, M11, M41, M42) if needed.
– Check and replace the clean module (F3) safety lock if needed.
– Check and replace the brush motors (M2, M3, M5) if needed.
– Check and replace the clean module (A3/1) if needed.
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Samantha LaraSep 16, 2025
What to do if main brush cannot be lifted or lowered on Kärcher BR 250 R Floor Machine (RI version)?
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Lisa LeeSep 16, 2025
If the main brush on your Kärcher Floor Machine (RI version with pre-sweeping unit) cannot be lifted or lowered:
– Check for any mechanical blockage and repair it. Check the function of the side brush suspension (spring, Bowden cable, deflection pulley).
– Check and replace the lift module of the pre-sweeping system (F6) if needed.
– Check and replace the pre-sweeping system (S6) switch if needed.
– Check and replace the program switch (S9) if needed.
– Check and replace the micro-switch of the lower pre-sweeping system (S50) if needed.
– Check and replace the micro-switch of the upper pre-sweeping system (S51) if needed.
– Check and replace the lifting motor of the pre-sweeping system (M50) if needed.
– Check and replace the lift module of the pre-sweeping system (A4/2) if needed.
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Emily BradfordSep 14, 2025
What to do if side brushes cannot be lifted or lowered on Kärcher BR 250 R Floor Machine (RI version)?
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Megan RobertsonSep 14, 2025
If the side brushes on your Kärcher Floor Machine (RI version with pre-sweeping unit or side brush option) cannot be lifted or lowered:
– Check for any mechanical blockage and repair it. Check the function of the side brush suspension (spring, Bowden cable, deflection pulley).
– Check and replace the side brush lift module (F8) safety lock if needed.
– Check and replace the pre-sweeping system (S6) switch if needed.
– Check and replace the program switch (S9) if needed.
– Check and replace the micro-switch of the lower side brush (S40) if needed.
– Check and replace the micro-switch of the upper side brush (S41) if needed.
– Check and replace the lifting motor of the side brush (M40) if needed.
– Check and replace the lift module of the side brush (A4/1) if needed.
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Jennifer BrooksSep 12, 2025
What to do if Kärcher Floor Machine raises dust or does not vacuum (RI version)?
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Kevin RiveraSep 12, 2025
If your Kärcher Floor Machine (RI version with pre-sweeping unit) raises dust or doesn't vacuum:
– Check and replace the side brush and main brush if needed.
– Verify the direction of rotation of the main brush and properly connect the electrical connecting cables (plus/minus).
– Check and replace the seal of the filter case of the debris container if needed.
– Check and replace the round filter if needed.
– Check, adjust, or replace sealing lips/strips.
– Check and replace the fan drive belt if needed.
– Check and adjust the pre-sweeping unit for parallelism.
– Check and replace the clean module pre-sweeping system (F6) safety lock if needed.
– Check and replace the fan motor (M13) if needed.
– Check and replace the clean module pre-sweeping system (A3/1) if needed.
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Lawrence PerrySep 12, 2025
How to improve poor braking effect on Kärcher BR 250 R Floor Machine?
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Vincent BallardSep 12, 2025
To improve a poor braking effect on your Kärcher Floor Machine:
– Test the electromagnetic brake (Y1) and adjust or replace if necessary, using test mode.
– Test the driving module printed circuit board (A2) and replace if necessary, using test mode.
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David RivasSep 9, 2025
Why won't the brush motor start on my Kärcher Floor Machine?
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Jasmine JuarezSep 9, 2025
If the brush motor on your Kärcher Floor Machine isn't starting:
– Check and replace fuse (F3) if necessary.
– Test the brush motor (M2, M3) and replace if necessary, using test mode.
– Check cable connections and remove defective cables.
– Test the cleaning module printed circuit board (A3) and replace if necessary, using test mode.
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dowensAug 22, 2025
What to do if the suction motor won't run on my Kärcher BR 250 R?
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Kimberly MendezAug 22, 2025
If the suction motor on your Kärcher Floor Machine isn't running, consider these possible solutions:
– Ensure the suction beam is not raised.
– Check if the dirty water tank is full.
– Check and replace fuse (F3) if necessary.
– Test and replace the float switch (S12) if necessary, using test mode.
– Test and replace the program selector switch (S9) if necessary.
– Test and replace the suction motor (M4) if necessary, using test mode.
– Check cable connections, removing any defective cables.
– Test the cleaning module printed circuit board (A3) and replace if necessary, using test mode.
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