There can be several reasons why the water in a washing machine is not as hot as it used to be. Here are a few possible explanations:
Water Heater Issues: If your washing machine is connected to a hot water supply from a water heater, the problem could be related to the water heater itself. It's possible that the water heater is not functioning properly or has a lower temperature setting than before. Check the thermostat settings on your water heater and make sure it is set to the desired temperature.
Plumbing Problems: Issues with your home's plumbing system can affect the hot water supply to your washing machine. There might be a blockage or a valve partially closed in the hot water line, reducing the flow or temperature of hot water reaching the machine. Inspect the plumbing connections and valves to ensure they are fully open and free of any obstructions.
Malfunctioning Heating Element: If your washing machine has its own internal heating element, it may be faulty or deteriorating. Over time, heating elements can wear out or become less efficient, resulting in lower water temperatures. If you suspect a problem with the heating element, it's advisable to contact a professional appliance repair technician to diagnose and resolve the issue.
Environmental Factors: Changes in ambient temperature or water supply temperature can also impact the perceived hotness of the water in your washing machine. During colder seasons, for example, the cold water supply may be colder than usual, causing the hot water mix to feel less warm. Similarly, changes in the temperature of your home's water source can affect the washing machine's hot water performance.
If you're unsure about the cause or unable to resolve the issue yourself, it's best to consult a qualified appliance repair technician who can diagnose the problem and provide appropriate solutions.