GRM1011 - Pressure washer Ferm - Free user manual and instructions
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| Product type | High-pressure cleaner |
| Brand | Ferm |
| Model | GRM1011 |
| Power source | 230 V AC, 50 Hz |
| Motor power | 1400 W |
| Max. operating pressure | 110 bar (1100 psi) |
| Rated working pressure | 100 bar |
| Max. water flow | 390 L/h |
| Max. water temperature | 40 °C |
| Power cord length | 5 m |
| High-pressure hose length | 3 m |
| Weight | 6.5 kg |
| Dimensions (L × W × H) | 250 × 340 × 450 mm |
| Detergent tank | Built-in detergent reservoir |
| Included accessories | Adjustable spray lance, rotary nozzle, high-pressure gun |
| Safety features | Thermal overload protection, locking trigger, pressure relief valve |
| Maintenance | Clean water filter regularly; descale after frequent use |
| Repairability | Spare parts available; standard components |
| Warranty | 2-year manufacturer warranty |
Frequently Asked Questions - GRM1011 Ferm
What type of detergent can I use with the Ferm GRM1011 pressure washer?
The GRM1011 is compatible with water-based detergents suitable for pressure washers. Use the built-in detergent tank and set the nozzle to low pressure to apply soap, then rinse at high pressure.
Can the pressure washer be connected to a rain barrel or water tank?
Yes, but the water supply must have a minimum flow rate. Connect a suction hose to the inlet and prime the pump before starting. Ensure the water is clean and filtered.
Why is the pressure fluctuating during use?
This is often caused by air in the hose or a clogged nozzle. Turn off the unit, bleed the gun by squeezing the trigger, and clean the nozzle with the included needle or a small wire.
How do I operate the pressure washer for the first time?
Connect the water supply, attach the high-pressure hose and gun, press the trigger to release air, then switch on the power. Always ensure the water inlet filter is installed.
Can I use hot water with this model?
No, the maximum water temperature is 40 °C. Using hot water can damage the pump seals and reduce performance.
How should I store the pressure washer after use?
Disconnect hoses and drain all water. Store in a frost-free location. For longer storage, run the pump with antifreeze solution to prevent freezing damage.
Is it suitable for cleaning cars?
Yes, the adjustable lance allows you to reduce pressure for delicate surfaces. Keep the nozzle at least 30 cm away from the paint and use the wide fan spray.
What maintenance does the pump require?
The pump is maintenance-free because it is coated with special lubrication. Just keep the water filter clean and flush the unit after use with clean water if detergents were used.
What does the accessory kit include?
The kit includes a high-pressure gun, a 3-meter hose, an adjustable spray lance, and a rotary dirt blaster nozzle for tough grime.
Can I repair the pressure washer myself?
Many parts such as the spray gun, hose, and nozzles can be replaced easily. For internal pump issues, contact a Ferm service dealer to ensure safe repairs and warranty preservation.
User questions about GRM1011 Ferm
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USER MANUAL GRM1011 Ferm
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Product information
Brand : Ferm
Model : GRM1011
Category : Pressure washer