Display shows E10; unit does not start heating when hot water is demanded

Safety first: Turn OFF power before removing any covers or plumbing components.

Steps:

• 1. Check household water pressure: Ensure other taps in the home have normal pressure. If whole-house pressure is low, contact your water supplier or plumber.
• 2. Verify valves: Confirm that the cold water isolation valve to the heater is fully open.
• 3. Clean inlet filter and aerators: Remove and clean the heater's inlet filter screen and any faucet aerators that may be restricting flow.
• 4. Storage-type models: If your Electrolux water heater uses a pressure switch, locate it on the cold inlet or tank top. Check tubing for kinks or blockages and test the switch for continuity when pressurized.
• 5. Replace faulty pressure switch: If the switch does not close under normal pressure, replace it with an OEM part.

Professional help: If E10 persists despite good water pressure and clean filters, a technician should check the flow/pressure sensing circuitry on the PCB.