Whirlpool Water Heater Error E01

⚡ Quick Answer: The Whirlpool water heater error code E01 indicates an ignition failure or flame loss, often due to the tank not being completely filled with water. W... ✅ DIY Fixable

What Does Error E01 Mean?

The Whirlpool water heater error code E01 indicates an ignition failure or flame loss, often due to the tank not being completely filled with water. When this error occurs, the display will flash and no hot water will be produced. It is essential to ensure that the tank is adequately filled to avoid air pockets that can prevent the heating cycle from starting.

Common Symptoms:

  • Error code E01 appears on display when powering on the water heater
  • Unit does not begin normal heating cycle
  • Possible lack of water flow or hot water output

Possible Causes

  • Tank not fully filled with water (air in tank) (medium)

How to Fix Error E01

DIY Fix Ensure water heater tank is filled before powering on

  1. Turn off electrical power to the water heater at the breaker.
  2. Open a hot water faucet in the house to allow air to escape.
  3. Turn on the cold water supply to the water heater and allow the tank to fill until water flows steadily from the open hot faucet.
  4. Close the hot water faucet once water flows steadily.
  5. Restore power to the water heater and allow it to complete its diagnostic/startup cycle.

Technician Only Check for trapped air or faulty inlet components

  1. Inspect the inlet pressure/flow sensor (if equipped) for blockage or malfunction.
  2. Verify proper operation of water inlet valves and that air is not trapped in the system.
  3. Bleed any remaining air from the tank using proper procedures.
  4. Confirm water heater fills correctly and error code clears.

Parts needed: Pressure/flow sensor (if applicable), Inlet valve

🛑 When to Call a Pro:
  • Error persists after ensuring the tank is properly filled.
  • Signs of water inlet component failure or unusual noises indicating trapped air or mechanical issues.
  • Repeated E01 errors despite corrective actions.

Technical Specifications

wattage N/A
component Flame Sensor
resistance N/A
part_number WHIRLPOOL 900027
voltage_rating 120V AC

Common Questions

What does E01 error mean on whirlpool water heater?

E01 indicates ignition failure or flame loss, often due to an unfilled tank.

Can I fix whirlpool water heater E01 error myself?

Yes, ensure the tank is filled properly and check for air pockets.

How much does it cost to fix E01 error?

Estimated repair costs range from $50 to $200.

When should I call a technician for E01?

Call a technician if the error persists after filling the tank or if you notice unusual sounds.

Sources & References

Data last verified: 2026-03-18

User Comments (0)

Share your experience or solution below.

Be the first to comment!