2015 Volvo S60 Heater Isn't Working

Common Causes of Heater Issues in Your 2015 Volvo S60 and How to Resolve Them

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
31% chance it's the
Heater Blower Motor
0%
18% chance it's the
Heater Blower Motor Resistor
0%
51% chance it's
Something else
The most common reasons a 2015 Volvo S60 heater isn't working are a broken heater blower motor, a problem with the thermostat, or a failed heater blower motor resistor.
  • Heater Blower Motor: A faulty heater blower motor can result in inadequate airflow or no air circulation in the cabin, affecting the heating system's performance.
  • Heater Blower Motor Resistor: A faulty heater blower motor resistor can cause inconsistent fan speeds or complete failure of the blower motor.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the initial diagnostic steps to take when the heater isn't working in a 2015 Volvo S60?

When faced with a heater malfunction in your 2015 Volvo S60, start by checking the coolant levels, as low coolant can significantly impact heating performance. Next, ensure that the thermostat is functioning correctly, as a faulty thermostat can prevent the engine from reaching the optimal temperature needed for effective heating. If these initial checks do not resolve the issue, inspect the heater core for clogs, which can restrict the flow of hot coolant and hinder heating. Additionally, verify that the heater control slider or switch is operating properly, as a malfunction here can prevent the heater from engaging. If the problem persists, trace the cable leading to the heater control valve to check for any obstructions that may be affecting its operation. Finally, consider performing a pressure test on the cooling system to identify any leaks or failures that could be impacting the heater's performance. By following these steps, you can systematically diagnose and address the heating issue in your Volvo S60.

What are the common problems that could cause the heater to stop working in a 2015 Volvo S60?

When troubleshooting a malfunctioning heater in a 2015 Volvo S60, it's essential to consider several common problems that could be at play. One frequent issue is the activation of the safety lock, which can prevent the heater from operating. Additionally, if the pilot light fails to ignite, the heating system will not function properly. In colder climates, components may freeze, further complicating the situation. It's also crucial to check for any gas leaks in the system, as these can pose safety risks and hinder heater performance. Electrical problems within the system can disrupt the heater's operation as well. Furthermore, the car's cooling system plays a significant role in the heater's functionality; therefore, ensuring that components like the thermostat and heater core are well-maintained is vital for optimal performance. By addressing these potential issues, you can effectively diagnose and resolve heater problems in your Volvo S60.

How urgent is it to address the non-functioning heater in a 2015 Volvo S60?

Addressing a non-functioning heater in your 2015 Volvo S60 should not be overlooked, as it can lead to significant discomfort during cold weather and may pose safety risks while driving. A heater that fails to operate properly can create an unpleasant driving experience, making it difficult to maintain visibility due to fogged windows. Moreover, neglecting this issue could indicate underlying problems within the heating system that, if left unaddressed, might escalate into more severe mechanical failures, potentially leading to costly repairs. Repair costs can vary widely, with minor fixes costing under $50, while more extensive repairs could reach up to $500. Therefore, timely attention to your heater not only enhances your comfort but also ensures the overall functionality and safety of your vehicle, making it a priority for any responsible car owner.

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Troubleshooting Heater Issues in 2015 Volvo S60 | RepairPal