As the temperature drops, wall heaters can become our best friends for keeping our living spaces toasty and warm. However, when these heaters fail to function, it can quickly lead to chilly discomfort, leaving us scrambling for solutions. If you find yourself in such a situation, don’t panic just yet. In this article, we’ll explore how to troubleshoot and fix a non-working wall heater, ensuring you can enjoy a comfortable living space all winter long. So, let’s dive into the nitty-gritty details of wall heater repair and get your unit back up and running in no time.

1. Identifying the Problem: Common Reasons Wall Heaters Fail to Work Properly

Identifying the problem is the first step towards fixing a wall heater that doesn’t work. There are several reasons why a wall heater may fail to work, and understanding these reasons is crucial if you want to diagnose and fix the problem. Here are some common reasons why wall heaters fail to work properly:

1. Power supply issues

Wall heaters require a constant power supply to function properly. If your wall heater isn’t working, it could be due to a power supply issue. Check if the circuit breaker controlling power to your wall heater is switched on. Also, check if there’s any damage to the power cord or plugin. If the wall heater still doesn’t work, try plugging it into a different outlet or get an electrician to look at the wiring.

2. Thermostat malfunction

Sometimes, the thermostat of a wall heater may malfunction and cause the heater not to work. The thermostat sends a signal to the heater to turn on or off, depending on the temperature settings. If the thermostat isn’t working, it can’t send the signal to the heater. You can check if the thermostat is working by adjusting the temperature settings and observing if the heater turns on or off. If the thermostat isn’t working, you may need to replace it.

3. Blockage or malfunctioning of the fan

The fan in a wall heater helps to distribute warm air evenly throughout the room. If the fan is not working or is blocked, the heater may not work effectively. Check if the fan blades are free of dust and debris. If they are clean and rotating, but you still don’t feel any air circulation, the motor may need to be repaired or replaced.

In conclusion, identifying the problem is the first step towards fixing a wall heater that doesn’t work. If you’re unable to diagnose and fix the issue, call an HVAC professional for assistance.

2. Troubleshooting Techniques: How to Identify a Faulty Wall Heater

If you turn on your wall heater and nothing happens, you may be wondering what went wrong. Before you call a professional, it’s helpful to conduct some troubleshooting techniques to identify the issue. Here are some common ways to identify a faulty wall heater:

1. Check the Thermostat

The thermostat controls the temperature of the wall heater. If it’s not working correctly, the wall heater may not function. First, check that the thermostat is set to the appropriate temperature. Then, clean it to remove any dust and debris that may be interfering with its functioning. If these steps don’t resolve the problem, you may need to replace the thermostat.

2. Inspect the Circuit Breaker

If the wall heater is not getting any power, it may be because the circuit breaker tripped. Check your circuit breaker to ensure it’s working correctly. Look for any signs that the breaker has tripped, such as a flipped switch or a blown fuse. If the circuit breaker has tripped, reset it and check that the wall heater is functioning correctly.

3. Check the Fan

If you hear the wall heater working but no hot air is coming out, it may be because the fan isn’t working. Inspect the fan to see if it’s obstructed or damaged in any way. If the fan isn’t working correctly, you may need to replace it or seek professional help.

Identifying the issue with your wall heater can be a simple process if you know where to look. These troubleshooting techniques can help you get your wall heater running again in no time.

3. DIY or Pro: Know When to Fix Your Wall Heater Yourself and When to Call an Expert

Now that you’ve identified the problem and tried some troubleshooting techniques, the big question arises: should you fix the wall heater yourself or call in a professional? The answer depends on several factors, including your level of knowledge, skill, and experience with repairing heating systems, as well as the severity and complexity of the problem.

When to Fix It Yourself

If the wall heater issue is relatively simple and you have some experience and confidence in DIY repairs, you can try fixing it yourself. Some common problems that you may be able to tackle include:

  • Dirty air filter – simply remove, clean, or replace the filter according to the manufacturer’s instructions.
  • Loose or disconnected electrical connections – turn off the power supply, inspect the connections, tighten or reconnect as necessary, and turn the power back on.
  • Tripped or faulty circuit breaker – reset the breaker or replace it if it keeps tripping.
  • Pilot light won’t stay lit – check the gas supply, clean the pilot orifice, adjust the flame, or replace the thermocouple or pilot assembly.

Remember to always read the owner’s manual before attempting any DIY repairs, and use proper safety precautions such as turning off the power and gas supply, wearing protective gear, and working with a partner if possible.

When to Call a Professional

If the wall heater problem is more complex or dangerous, or if you lack the knowledge or tools to do a proper repair, it’s best to call in an HVAC professional. Some situations that require expert help include:

  • Gas leak or carbon monoxide detection – these are serious emergencies that require immediate evacuation and professional intervention.
  • Cracked or corroded heat exchanger – this can lead to carbon monoxide poisoning or fire hazards, and requires specialized equipment and expertise to replace.
  • Electrical wiring issues – unless you are a licensed electrician, avoid messing with wiring issues that could cause electrocution or fire risks.
  • Mechanical malfunctions – if you hear strange noises, smell strange odors, or notice any other signs of mechanical problems, don’t try to fix them yourself, as it could lead to further damage or endangerment.

Remember that by attempting to fix a wall heater problem beyond your expertise, you risk making the problem worse, damaging the unit, or endangering yourself and your family. Always err on the side of caution and call in a professional if you’re unsure about how to proceed.

4. Repairing a Wall Heater: Step-by-Step Guide to Fixing the Issue

Are you having trouble with your wall heater? If you have already identified the problem, it’s time to take action and fix the issue. Here’s a step-by-step guide to help you get started.

Gather the Right Tools

Before you begin, you need to gather the right tools for the job. The tools you’ll need will depend on the type of problem you’re experiencing and the type of wall heater you have. Here are some common tools you may need:

  • Screwdriver
  • Multimeter
  • Flashlight
  • Wire strippers
  • Replacement parts (such as heating elements or thermostats)

Turn Off the Power

Safety always comes first, so make sure to turn off the power to your wall heater before starting any repairs. Locate the circuit breaker or fuse box that controls the power to the heater and switch it off.

Remove the Cover

Once the power is off, you can begin removing the cover of your wall heater. Use a screwdriver to remove any screws holding the cover in place. Carefully lift the cover and set it aside.

Identify and Fix the Issue

Now that you can see the internal components of your wall heater, it’s time to identify the issue and fix it. Use your multimeter to test the various components and determine which part is faulty. Once you have identified the problem, you can replace the faulty component or make any necessary repairs.

Reassemble the Heater

Once you have fixed the problem, it’s time to put your wall heater back together. Reassemble the cover and screw it back into place. Turn the power back on at the circuit breaker or fuse box and test your wall heater to ensure it’s working properly.

By following these simple steps, you can repair your wall heater and avoid the expense of hiring a professional. However, if you’re not comfortable performing these repairs, it’s always best to call in an expert.

5. Preventive Measures: How to Ensure Your Wall Heater Works Efficiently

To avoid your wall heater from breaking down or malfunctioning, you can follow some simple preventive measures. By keeping your wall heater in good condition, you can ensure its efficient operation and a longer lifespan. The following are some preventive measures that you can take to keep your wall heater working efficiently.

1. Clean Your Wall Heater Regularly

The first step in ensuring your wall heater works efficiently is keeping it clean. Over time, dust and debris can accumulate within the heater’s internal components, which can not only lower its efficiency but also cause safety hazards. Therefore, it’s essential to clean your wall heater regularly, at least once a month or as frequently as possible.

You can use a vacuum cleaner or a soft-bristled brush to remove the dirt and dust from your wall heater. Be sure to turn off the power supply and remove the heater’s front panel before cleaning the inside components.

2. Keep Your Heater Properly Ventilated

The performance and efficiency of your wall heater can be affected by poor ventilation. For instance, if the heater’s intake or exhaust vents are blocked, it can cause a buildup of carbon monoxide or other harmful gases, leading to life-threatening situations.

Therefore, ensure your wall heater has proper ventilation by keeping the area around the heater unobstructed. Also, avoid using your heater in small, enclosed spaces or using it to dry clothes as it can cause a fire hazard.

3. Check Your Wall Heater’s Thermostat

A faulty thermostat can cause your wall heater to operate inefficiently. Therefore, it’s important to ensure your wall heater’s thermostat is working optimally. You can do this by testing it regularly and replacing it if necessary.

You can use a thermometer to check the heater’s output temperature and compare it with the thermostat’s readings. If there’s a significant difference between the two, you may need to recalibrate your thermostat or replace it entirely.

In conclusion, taking the above preventive measures can help you keep your wall heater working efficiently. However, if you face any problems with your wall heater despite taking these precautions, it’s advisable to seek professional assistance immediately.

6. Maintenance Tips: Keeping Your Wall Heater in Top Shape

To ensure that your wall heater functions at its best, regular maintenance is key. By performing some simple maintenance tasks regularly, you can prevent costly repairs and prolong the lifespan of your wall heater. In this section, we will provide you with some maintenance tips to keep your wall heater in top shape.

Clean Your Wall Heater Regularly

Dust and debris buildup on your wall heater can cause it to work less efficiently. So, it’s essential to clean it regularly. You can start by turning off the heater and unplugging it from the power source. Then, remove the front panel and use a soft-bristled brush or a vacuum cleaner to remove dust and dirt from the inside and outside of the heater.

Tip: While cleaning your wall heater, make sure that you don’t use any water or cleaning solutions. Water can damage the heater’s electrical components, and cleaning solutions can leave behind a residue that can cause a fire hazard.

Check and Replace Air Filters

The air filters of your wall heater are responsible for trapping dust, dirt, and other airborne pollutants that circulate in your home. Over time, these filters can become clogged and dirty, restricting airflow, and causing your wall heater to work less efficiently.

To prevent this, you should check your wall heater’s air filters once every three months and replace them if necessary. This will not only keep your wall heater running smoothly, but it will also improve the air quality in your home.

Schedule a Yearly Professional Maintenance

While performing some basic maintenance tasks can help keep your wall heater in excellent condition, it’s essential to schedule an annual professional maintenance service. A professional HVAC technician can thoroughly inspect your wall heater and detect any underlying issues before they become major problems.

Moreover, a professional cleaning can improve the airflow and energy efficiency of your wall heater, saving you money on energy bills in the long run. By following these maintenance tips, you can ensure that your wall heater will provide you with comfortable warmth for many years to come.

7. Upgrades and Replacements: When it’s Time to Replace Your Old Wall Heater

If your wall heater has been causing constant problems or has stopped working completely, it might be time for an upgrade or a replacement. Below are some signs that indicate that you need to replace your old wall heater:

1. Your heater is old and outdated:

If your wall heater is more than 10 years old, it may not be as efficient as it used to be. The older the heater, the more likely it is to break down. Additionally, advances in technology have made new wall heaters more energy-efficient and eco-friendly. Thus, replacing your old wall heater can help you save money on energy bills.

2. Repairs have become quite expensive:

If your wall heater needs frequent repairs, it might be better to replace it altogether. Constant repairs can add up, costing you more than buying a new wall heater.

3. Your home’s heating needs have changed:

If you have moved into a larger home, or your family has grown, your old wall heater might not be sufficient to keep your home warm throughout the winter. Similarly, if you have renovated your home or insulated it better, you might need a wall heater with greater output capacity.

When it comes to upgrading or replacing your wall heater, you have several options to choose from:

  • Electric Wall Heaters: Electric wall heaters are an excellent option for those who want an easy-to-install, low-maintenance unit. They do not produce any emissions and can heat up a room quickly.
  • Gas Wall Heaters: Gas wall heaters are a great alternative for those who want to cut down on their electricity bill. They use propane or natural gas to generate heat, and can be vented or ventless.
  • Ductless Mini-Split Systems: Mini-split systems are perfect for larger homes or rooms that require more heating power than a single wall heater can provide. They can heat several rooms at once and can be installed without any ductwork.


Upgrading or replacing your old wall heater is a wise investment that will not only provide you with better heating but also save you money in the long run. Be sure to choose a heater that is energy-efficient and suits your heating needs. If you’re unsure, consult an HVAC expert to help you make the best choice.

People Also Ask

Why is my wall heater not working?

There may be a variety of reasons why your wall heater is not working such as a blown fuse, tripped circuit breaker, malfunctioning thermostat, or a faulty heating element.

Can I fix a wall heater myself?

If you have experience with electrical repairs, you may be able to fix a wall heater yourself. However, it is recommended that you hire a professional electrician to ensure that the repair is done correctly and safely.

How much does it cost to fix a wall heater?

The cost to fix a wall heater can vary, depending on the extent of the damage and the parts needed for repair. On average, you can expect to pay between $150-$500 for repairs.

Can a wall heater be dangerous?

If a wall heater is not working properly, it can be dangerous as it may cause a fire or emit carbon monoxide. It’s important to have any issues with your wall heater addressed in a timely manner.

Should I replace or repair my wall heater?

If your wall heater is relatively new and the repairs are minor, it may be more cost-effective to repair it. However, if the repairs are extensive or your heater is old and inefficient, it may be more practical to replace it with a new, more energy-efficient model.


A wall heater that is not working can be a safety hazard and lead to costly heating bills. It is important to troubleshoot and address any problems with your wall heater immediately. While some repairs can be done yourself, it is recommended to have a professional electrician assess and repair your wall heater. If the repairs are extensive or your heater is old and inefficient, it may be more practical to replace it with a new, energy-efficient model.