---
title: "Washer heater and thermostat repair"
description: "Cold washes on a program that should be hot, or cycles that run far past their stated time. The machine will not move on until the water reaches temperature, so"
url: "https://askomiami.support/services/washer-heater-and-thermostat-repair/"
date_modified: "2026-09-13"
Appliance type: "Washers"
---


# Asko washer heater and thermostat repair

### A heating problem shows up as a clock problem first

The machine will not advance until the water reaches temperature, so people report a cycle that takes four hours rather than a wash that runs cold. Most of the work here is establishing which of two components is lying: the element, or the thermistor in front of it that tells the control what the water is doing. A sensor reading wrongly makes a perfectly good element look dead, and swapping the more expensive part first is the mistake this testing exists to prevent. On this water, an element that has failed early usually has scale behind it.

What this involves

A cycle that never ends is usually a heating problem, not a timer problem

Thermistor before element: a wrong reading makes a good element look dead

Scale on this water shortens element life, and we say so at the visit

Time the phase and read the water

How long the machine holds before moving on, and what the water is actually doing while it does. That pair separates heating from control.

Test element and thermistor separately

Resistance at the element, curve at the thermistor, and the control's reading compared with a measured temperature.

Fit and check what scaled it

Element replaced where needed and the machine's exposure to this supply discussed, because a second element in three years is a water problem rather than a part problem.

### How long should a cycle take?

It depends on the program, but the useful thing is the change. Write down what a familiar wash takes now against what it used to, because that comparison is worth more than any absolute figure.

### Will it happen again?

If scale caused it and nothing changes, yes. A second element within a few years is a water problem rather than a part problem, and we will say so rather than fit a third.

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