Capacitor for:

• Master P60 and P70, both Master 1.0 and 2.0
• Evolution P60 and P70
• V6 P70

This is a start capacitor rated at 35 µF, used in AVA machines with single-phase induction motors. It provides the extra torque required to start the motor and is mounted directly onto the motor housing.
This capacitor is critical for proper startup. A worn or failed capacitor can cause the motor to struggle, hum, or fail to start altogether.

Note: This is a standard electrical component used across many motor types. If replacing with a third-party version, ensure identical specifications: 35 µF, correct voltage rating (typically 400–450V AC), and motor-grade tolerance.

Who is this kit for?

Can be replaced by most users – just follow safety precautions
This capacitor is a simple, non-polarised component and can be replaced by anyone with basic tools and safety precautions.

Typical cause of failure

• Age-related degradation (capacitor dries out).
• Power surges or lightning damage.
• Long-term heat exposure from frequent use.
• Electrical overload due to stalled motor.

Failure symptoms – Part correlation

• Machine hums but does not start.
• Machine only starts with a push or external rotation.
• Visible bulging or leakage from capacitor housing.
• Blown fuse or tripped breaker when powering on.

Capacitor failure is a common issue in motor-driven products. However, AVA has significantly reduced this risk by integrating a thermal switch into the motor, making capacitor-related problems very rare.

If you suspect a capacitor fault on your AVA machine, we recommend testing it before purchasing a replacement.

Note: A machine that hums or fails to start may also be caused by low voltage, excessive inlet water pressure, or a mechanical issue in the pump – not necessarily the capacitor.

Installation advice

Disconnect the power supply before opening the housing: 

Always prioritize safety, read our guide: Safety instructions – AVA of Norway

• Access the motor compartment by following the appropriate service guide
• Discharge the old capacitor before handling (capacitors can hold charge)
• Note the wiring layout and replace with a 35 µF motor-grade start capacitor
• Secure all terminals and refit the housing properly

Tools Needed for all AVA Pressure Washer Maintenance – AVA of Norway

Recommended guides:

• Replace capacitor Master
• Replace capacitor Evolution
• No separate guide for V6 yet, but procedure is similar to Evolution

Troubleshooting a Start Capacitor

A faulty capacitor is a common reason why a pressure washer motor fails to start, hums without turning, or trips the fuse. If you suspect capacitor failure, it should be tested before replacement.

Method 1: Multimeter with Capacitance Mode (most accurate)

1. Disconnect power and discharge the capacitor by shorting the terminals through a resistor (not directly with a screwdriver).
2. Remove at least one terminal from the machine to isolate the capacitor.
3. Set your multimeter to capacitance mode (symbol: “–|(–”).
4. Connect probes to each terminal.
5. Read the displayed value. It should match the printed rating (e.g. 35 µF ±5%).
   If the reading is much lower or shows OL (open loop), the capacitor is faulty.

Method 2: Resistance Test (for basic multimeters)

1. Set the multimeter to resistance (ohm) mode.
2. Touch probes to the terminals. A good capacitor will:
   • Show low resistance briefly, then rise (charging effect)
   • Eventually display OL (open line) as it charges.
3. A bad capacitor will:
   • Show zero (short) or constant low resistance.
   • Or show infinite resistance (open) with no charging reaction.

Tip: Visual signs of failure (bulging, cracking, or leakage) are strong indicators that the capacitor needs replacing – even before testing.

Warranty and Self-Repair – The AVA Way

At AVA, we encourage repair – not throwaway culture. You’re free to open your machine, inspect it, and replace parts yourself without losing your warranty. That’s part of what makes owning an AVA product different.

We offer guides, spare parts and support so that you can keep your machine running for many years to come – whether it’s a simple nozzle, a carbon brush, or a full pump module.

Many parts are designed to be replaceable – just like they should be.
Visible signs of use or repair are welcomed – they mean the product is being cared for.

Learn more about our warranty: AVA Warranty Terms & Conditions