Part Location Diagram of 9.085-034.0 Karcher Switch 16a 3/4hf
See part K-8 in the diagram
( Grid squares measure 1x1 inch )

Switch 16a 3/4hf 9.085-034.0

Manufactured by:
Karcher
ERP Number:
ERP10020757
Part Number:
9.085-034.0
Original Equipment Manufacturer ?
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Easy 

15 - 30 mins 

(6 rated repairs) ?

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Product Description

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This authentic OEM sourced replacement part that is designed for use with Karcher pressure washers. The purpose of this switch is to control on/off function of the unit. Because switches use mechanical internals, over time they will begin to deteriorate and fail eventually requiring replacement. This durable plastic switch is sold individually.

Troubleshooting

This part works with the following brands:
  • Karcher
This part works with the following products:
  • Pressure Washer

Customer Part Reviews

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5.0
Average Rating (out of 5):
★★★★★
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(3 Reviews)
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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

15 - 30 mins 

(6 rated repairs) ?
  • 1
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Power switch had failed and burned up melting switch and housing

BJ from Covington, Washington

4 of 4 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers
Parts Used:
9.085-034.0, 9.036-426.0
Removed cover from pressure washer. Released tabs from switch cover housing. Determined switch was bad as one of the four connections had burnt off. Switch no longer functioned and had melted in the on position. This explained why device would not shut off before it finally failed. The burnt connection was no longer connected to the switc h which also explained why the washer would not come back on after it cooled down. The melted switch is held in the lower housing which was also melted by the heat. The housing would no longer hold the switch in the correct position. After obtaining the new switch and lower housing, took a picture of the wiring and then proceeded to disconnect the starting capacitor then remaining wires on the switch. Disconnected ground wire by removing the hold down screw and pulled power cable through housing. Removed capacitor from lower housing. Removed 2 screws holding lower housing in place then lifted housing ensuring motor wires fed through housing. Reassembled with new parts in reverse order. Tested switch before putting cover back on power washer by ensuring pump assembly was in lower cover with hold down bracket securely fastened. Plugged in device and turned switch to on position. Pump started as expected. Turned switch off and device stopped. Unplugged unit and completed reassembly. Tested with water connected and ensured pump started/stopped when trigger was pulled/released.
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Electric pressure washer would not start

William from Connellsville, Pennsylvania

4 of 4 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
9.085-034.0
Replaced switch recommended by ereplacementparts.com. simply removed cover and replaced switch.
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Switch burned out

Ed from REHOBOTH, Massachusetts

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
9.085-034.0
Took pressure washer apart. Used multimeter to check continuity. Took switch apart and observed burned contact. Took photos of wiring first.
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Power washer would not shut off using the primary rotary switch

Dave from RIO RANCHO, New Mexico

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers
Parts Used:
9.085-034.0
1 Separated halves of washer case (7 screws).
2 Removed snap on cover to the switch box.
3. Pulled switch with wires attached out of switch box.
4. Moved four wires from switch terminals from old switch to new switch.
5. Reinserted switch in switch box.
6. Reassembled 2 halves of washer case (7 screws)
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motor would not start

dean from VALLEJO, California

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Screw drivers
replaced all electrical components
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Switch not engaging

Dennis from BAXTER SPRINGS, Kansas

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
9.085-034.0
1. Removed two screws to remove handle.
2. Removed six screws to open housing.
3. Opened switch box.
4. Removed four wires from switch.
5. Installed four wires on new switch.
6. Reassembled.
7. Saved $150.
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