Haier washer Err4 code: heater error

The washer could not heat the water as expected. Haier says this code appears at the end of a cycle and suggests reducing the load and washing again before calling for service.

Likely causes

Listed from most to least common.

1. Drum overloaded, so water could not heat in time
2. Heating element failed
3. Temperature sensor faulty
4. Loose wiring to the heater

How to fix the Err4 code

Unplug the washer or switch it off at the breaker before removing any panel or filter.

1. 1

   Step 1: Reduce the load

   Take out some of the laundry so the drum is no more than about three-quarters full.

2. 2

   Step 2: Run the cycle again

   Start the same program again. If it finishes without the code, the load was simply too large.

3. 3

   Step 3: Test with a cold wash

   If the code keeps returning, wash on a cold program in the meantime. The washer works normally without heating, and you avoid repeated errors.

Parts that may need replacing

Check your model number on the label inside the door or on the back before ordering.

• Haier washer heating elementCheck prices

When to call a technician

If Err4 returns with a smaller load, the heating element or temperature sensor needs testing. This means removing the back panel, so book a technician.

A typical repair for this code costs $180–$380 in the US, including parts and labor. Prices vary by area and model.

Models this applies to

• Front-load washers (HW series)
• Top-load washers (HWT and HWM series)
• Portable and compact washers

Codes can differ slightly between models. Your owner's manual is the final word and is available from Haier support.

Common questions