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Honda HRV Heater Not Working (How To Fix)

The Honda HRV is a popular and reliable compact SUV. However, some owners have reported issues with the heater not working properly. This can be a frustrating problem, especially during the colder months. In this article, we will explore the possible causes of a malfunctioning Honda HRV heater and provide some solutions to fix the problem.

Honda HRV steering wheel and heater

There are several reasons why the heater in a Honda HRV may not be working. One common cause is a malfunctioning thermostat. If the thermostat is stuck open, the engine may not reach the proper operating temperature, which can affect the performance of the heater. Another possible cause is a clogged heater core. Over time, the heater core can become clogged with sediment and debris, which can prevent hot air from flowing into the cabin. Additionally, a faulty blower motor or a blown fuse can also cause the heater to stop working. In the following sections, we will explore each of these issues in more detail and provide some tips on how to diagnose and fix the problem.

Common Causes of Honda HRV Heater Failure

Honda HRV interior front cabin

When the heater in a Honda HRV fails to work, there are several potential causes. Here are some of the most common causes of heater failure in Honda HRVs:

Leaking Coolant

One of the most common reasons for a heater to stop working is a coolant leak. Coolant is responsible for heating the air that comes out of the heater, so if there is a leak, the heater will not be able to warm the air. Over time, the leak can worsen, leading to more serious problems. If a coolant leak is suspected, it is important to have it repaired as soon as possible.

Faulty Thermostat

Another common cause of heater failure in Honda HRVs is a faulty thermostat. The thermostat is responsible for regulating the temperature of the engine coolant, which in turn affects the temperature of the air that comes out of the heater. If the thermostat is not functioning properly, the engine may not reach the correct operating temperature, which can cause the heater to blow cold air.

Blocked Heater Core

A blocked heater core can also cause the heater in a Honda HRV to stop working. The heater core is responsible for transferring heat from the engine coolant to the air that comes out of the heater. If the heater core becomes blocked with debris or sediment, it will not be able to transfer heat effectively, which can cause the heater to blow cold air.

Malfunctioning Blower Motor

Finally, a malfunctioning blower motor can cause the heater in a Honda HRV to stop working. The blower motor is responsible for blowing air over the heater core and into the cabin of the vehicle. If the blower motor is not functioning properly, it will not be able to blow air over the heater core, which can cause the heater to blow cold air.

How to Diagnose a Non-Working Honda HRV Heater

Red Honda HRV driving through the city at night

When the heater in a Honda HRV stops working, it can be frustrating, especially during the winter months. However, diagnosing the issue can be a straightforward process. There are a few steps to take to identify the problem, including a visual inspection, temperature check, and pressure test.

Visual Inspection

The first step in diagnosing a non-working heater is to perform a visual inspection. Check the heater controls and ensure that they are set to the correct temperature and fan speed. Inspect the heater hoses for any signs of damage, such as cracks or leaks. Check the coolant level in the radiator and ensure that it is at the correct level. Finally, inspect the heater core for any signs of damage or leaks.

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Temperature Check

After performing a visual inspection, the next step is to check the temperature of the heater. Start the engine and allow it to warm up. Turn the heater controls to the maximum temperature setting and feel the air coming out of the vents. If the air is not warm, the issue may be with the heater core or the thermostat.

Pressure Test

If the temperature check does not identify the issue, the next step is to perform a pressure test. This test will help identify any leaks in the cooling system. Start by allowing the engine to cool down completely. Remove the radiator cap and attach a pressure tester. Pump the tester until the pressure reaches the recommended level. If the pressure drops quickly, there may be a leak in the cooling system.

In conclusion, diagnosing a non-working heater in a Honda HRV can be a straightforward process. By performing a visual inspection, temperature check, and pressure test, you can identify the issue and take the necessary steps to fix it.

Repairing A Honda HRV Heater

Honda HRV headlights on at night

If the heater in a Honda HRV is not working, there are a few potential causes that can be addressed. Here are some steps to take to repair the heater:

Replacing the Thermostat

The thermostat is responsible for regulating the engine temperature and ensuring that the heater works properly. If the thermostat is not functioning correctly, the heater may not work at all. To replace the thermostat, follow these steps:

  1. Drain the coolant from the radiator.
  2. Remove the thermostat housing and old thermostat.
  3. Install the new thermostat and housing.
  4. Refill the coolant and check for leaks.

Flushing the Heater Core

The heater core is responsible for transferring heat from the engine to the cabin of the car. If the heater core is clogged or dirty, the heater may not work properly. To flush the heater core, follow these steps:

  1. Locate the heater core and remove the hoses.
  2. Connect a garden hose to one of the hoses and turn on the water.
  3. Allow the water to flow through the heater core until it runs clear.
  4. Reconnect the hoses and refill the coolant.

Fixing the Blower Motor

The blower motor is responsible for pushing hot air from the heater core into the cabin of the car. If the blower motor is not working, the heater will not be able to function properly. To fix the blower motor, follow these steps:

  1. Locate the blower motor and remove it from the car.
  2. Check the motor for any signs of damage or wear.
  3. Replace the motor if necessary.
  4. Reinstall the blower motor and test the heater.

By following these steps, it is possible to repair a Honda HRV heater that is not working properly. However, if the issue persists, it may be necessary to seek professional assistance.

Preventive Measures to Avoid Heater Problems

If you want to avoid heater problems in your Honda HRV, there are a few preventive measures you can take. Regular coolant changes, routine inspection, and maintenance can help keep your heater functioning properly.

Regular Coolant Change

Coolant is an essential component of your car’s heating and cooling system. It helps regulate the temperature of your engine and keeps it from overheating. Over time, coolant can become contaminated with dirt, debris, and rust, which can cause blockages in your heater core and prevent it from functioning properly.

The copyright owner of this article is Knowmyauto.com and was first published on Jul 31, 2023..

To avoid this problem, it’s important to change your coolant regularly. Honda recommends changing your coolant every 60,000 miles or every five years, whichever comes first. If you live in an area with extreme temperatures or harsh driving conditions, you may need to change your coolant more frequently.

Routine Inspection and Maintenance

In addition to regular coolant changes, routine inspection and maintenance can help prevent heater problems in your Honda HRV. Here are some things to keep in mind:

  • Check your heater hoses for leaks or cracks. If you notice any damage, replace them immediately.
  • Inspect your heater core for signs of corrosion or blockages. If you notice any issues, have it cleaned or replaced.
  • Make sure your thermostat is functioning properly. If it’s stuck open or closed, it can cause problems with your heater.
  • Check your blower motor for proper operation. If it’s not working correctly, your heater may not blow hot air.

By following these preventive measures, you can help ensure that your Honda HRV’s heater is functioning properly and avoid costly repairs down the road.

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