Why Is My Car Heater Not Working Properly in Winter? Common Issues And What To Do

Winter season is upon us and with the India Meteorological Department's alert of a cold wave, car drivers are advised to check that their vehicles are well-maintained to avoid any snags. This is because functions like the cabin heater and window defogger become critical for safe driving during the cold season, as they ensure comfort and clear visibility in extreme conditions. Moreover, as drivers do not use these functions for the majority of the year, detecting a malfunction in these heating systems gets overlooked frequently. In the event you face a situation where the vehicle heater or defogger is not functioning properly, here are some common reasons behind it and what you can do to ensure safety.

Also Read: Why Does EV Range Drop in Winter?

Factors To Consider And Tips To Follow

Several factors can lead to heating issues in cars during the winter months. One of the primary reasons is coolant leaks. The heating system relies on the engine coolant to operate effectively. If there is a leak in the system, then it would lead to insufficient heating inside the cabin. Another common issue is a malfunctioning thermostat, which regulates the flow of the coolant. If the thermostat is stuck in the closed position, it can prevent coolant from circulating through the heater core.

Additionally, blocked heater cores can also be a reason behind insufficient flow of warm air inside your car. This happens due to dirt, debris, or corrosion that can obstruct the heater core, causing it to fail. As part of regular car maintenance, checking these additional systems is essential to prevent emergencies. Car owners should ensure that the coolant is at the correct level and that there are no visible leaks.

For those facing heating problems, several troubleshooting steps can be taken. First, check the coolant level and top it up if necessary. If the coolant is low, inspect for leaks under the vehicle. If the coolant appears to be leaking, contact an authorised service centre and have them take a closer look. Another step is to assess the thermostat of the vehicle. If the engine takes a long time to warm up or the heater does not produce hot air, it may be a sign of a malfunctioning thermostat.

To avoid issues with a vehicle's heating or defogger, car owners should prioritise having all systems checked regularly. It can also help to have the heating systems specifically checked as the winter season begins to approach. As a best practice, it is always advised to get your vehicle inspected and repaired at authorised centres with properly trained mechanics.

Keep reading Times Now Auto for more relevant winter driving tips and stay safe out on the roads.