Washer fills slowly or not at all; display shows E02.

Safety first: Turn off power and close both hot and cold water supply valves before disconnecting hoses.

• Verify water supply: Confirm that the building shutoff valves for hot and cold are fully open. Check that other fixtures have normal pressure.
• Clean inlet screens: Disconnect the fill hoses from the back of the washer. Inspect the metal screens inside the UniMac inlet valve ports for debris or scale. Clean gently with a small brush; do not puncture the screens.
• Check hoses: Ensure hoses are not kinked or collapsed. Replace if bulged or cracked.
• Test inlet valve coils: With power off, remove the top or rear panel to access the water inlet valve assembly. Use a multimeter to measure coil resistance; compare to UniMac specifications. Replace the inlet valve assembly if a coil is open or shorted.
• Run a test fill: After reassembly, restore water and power, then run a fill test. If E02 persists despite good supply and a new valve, the control board may not be energizing the valve correctly and should be checked by a technician.