How to Fix a Dryer That Runs But Never Heats Up

If you’re having problems with your dryer not heating up, there are a few things you can try. First, check your fuses to make sure they haven’t blown or circuit breakers haven’t tripped.

Next, use a multimeter to test the igniter for continuity. If it shows more resistance or no continuity at all, replace it.

Understanding the Issue

There are a few different issues that could be to blame for your dryer not heating. You can fix a few of these on your own, but if you aren’t sure how to do this, it is best to call a professional who will be able to get to the root of the issue and resolve it for you.

One of the most common reasons that a dryer doesn’t heat up is a clogged vent. If there is a lint clog in your vent, the dryer won’t be able to release hot air to dry the clothes.

Another common cause is a thermal fuse that has blown out. The thermal fuse is a safety device that stops temperatures from getting too high and becoming a fire hazard.

A blown thermal fuse is not a complicated repair, but it’s still best to call in a professional who can replace it for you. Even if you think you can replace it yourself, check the manual to make sure you are doing it correctly and not damaging any other components of the machine.

Basic Troubleshooting

If your dryer isn’t heating up, it’s important to find out what’s wrong. It may be as simple as a tripped circuit breaker or a blocked vent.

The first thing to check is whether your dryer is plugged in properly. Plugs can get clogged with debris or work their way loose due to normal wear and tear, so it’s essential that they’re securely fastened.

Another common issue is a broken heating element. This is a problem that can often be solved by using a multimeter to test the heating coils for continuity.

If the heating element has no current flow, it may need to be replaced. The process can be tricky, though, so it’s a good idea to call in a repair technician if you have no experience with dryer repairs.

Advanced Troubleshooting

One of the most common problems homeowners experience with dryers is that they won’t heat up. It can be an electrical issue or a mechanical problem with the appliance itself.

In either case, if you’re not sure how to fix it, it’s best to call a professional for help. They’ll know exactly where to look, and can quickly assess the situation for you.

Another potential reason that your dryer isn’t heating up is because the drive motor is faulty or blocked by lint. Removing the drum can reveal any clogs, and then you’ll be able to inspect the drive motor for any damage or electrical issues.

If the drive motor is faulty, it’s essential to replace it as soon as possible so you don’t cause further damage. This will prevent further malfunctions and extend the life of your dryer.

Removing the Drum

If your dryer turns on but never heats up, you may need to remove the drum. This is a common problem and it can be a simple fix if you know how to do it.

If you can’t access the drum, check for lint in the vents and around the motor. Lint can clog these parts and restrict airflow, so cleaning them is important.

Another issue that can cause your dryer to run but never heat up is a damaged drive belt. Some models allow you to remove the belt and replace it. Others have a switch that will prevent the dryer from running if the belt becomes damaged.

In other cases, you’ll need to disassemble your appliance. This involves removing the top panel, the front bulkhead, and the drum. Before you begin, disconnect the power cord to ensure there’s no danger of shock. Once the appliance is unplugged, locate your thermal fuse.

Checking the Thermal Fuse

When a thermal fuse is blown, it can cause an appliance to stop working. This is a problem because thermal fuses are necessary components for any equipment that creates heat, and they’re great safety precautions to prevent injury-causing incidents.

To test a dryer’s thermal fuse, you can use an electrical multimeter that has a dial set to measure resistance in ohms. Touch one lead of the meter to one of the fuse’s terminals and the other to the other terminal.

If the meter display reads zero ohms, your fuse is fine and you won’t need to replace it. However, if it reads significant or infinite ohms, the fuse is blown and you’ll need to replace it.

The thermal fuse on a dryer is located on the exhaust duct of the appliance. If this fuse blows, your dryer will no longer work. It cannot be reset and you’ll need to purchase a new fuse for your model.

Inspecting the Operating Thermostat

A cycling thermostat senses dryer airflow temperature and cycles the dryer’s heating element on and off. If it fails, the cycle will stick open and your dryer will not supply heat.

A faulty cycling thermostat could lead to high dryer temperatures or blown thermal fuses. You can test it by using a multimeter and touching the red and black probes together with the thermostat’s terminals.

If you get a reading other than zero, the thermostat needs to be replaced.

This non-resettable safety fuse will break electrical contact to the dryer’s burner if the dryer gets too hot. This usually happens due to clogged dryer ducting or a defective cycling thermostat.

Testing the Flame Sensor

When a gas dryer fails to heat up, it may be due to a faulty flame sensor. If this is the case, you will need to replace it.

In most models, the flame sensor is a small black box that sits on the outside of the flame igniter, below the dryer drum. It uses a circuit to detect the presence of a flame and shuts down the gas valve when it doesn’t sense one.

You can test the flame sensor using a multimeter to see if it is working properly. This will help you determine if the problem is with the sensor or with another part.

To test the sensor, you will need to unfasten the screw that holds it in place and carefully pull it out. Then, use a multimeter to check for resistance between the white and blue wire ports found on the flame sensor.

Checking the Gas Valve Coils

The gas valve in a dryer is an important part of the burner assembly. It lets gas flow to the burner when you turn on the unit, and shuts off when you shut off the appliance.

The solenoid coils are a key part of the gas valve, and if they don’t work properly, the gas valve won’t open correctly and your dryer will fail to heat up. The coils are electrically powered, and electricity passes through them to move an actuator that opens a passageway for gas to pass from the coil to the gas valve.

If the coils are broken, you’ll hear a clunk or click noise as the valve tries to actuate. You’ll also see the igniter glow bright orange when the gas valve tries to open.

Depending on the model of your dryer, the coils are located either inside the gas valve or near the top of the burner assembly. In most cases, replacing the coils is simple and requires only a screwdriver or other tool.

Testing the Igniter

When a dryer runs but never heats up, it may be due to an issue with the Igniter. The Igniter is located inside the dryer next to the gas valve burner tube and ignites the gas released by the valve.

Most modern gas dryers have a radiant sensor that monitors the heat from the igniter to open the gas valve, as well as to keep the flame in the burner assembly. If this sensor becomes defective, the igniter will not glow or the gas valve will not open.

Alternatively, the dryer’s cycling thermostat may be at fault. To check this, touch one probe to each terminal on the thermostat.

If the reading is infinity or zero, it’s time to replace your cycling thermostat. If it’s reading something else, it could be that the ignition is broken or the thermistor has lost continuity.

FAQs When Dryer Runs But Never Heats Up

Why is my dryer running but not heating?

If your dryer is running but not heating, there are several reasons why this may be happening. Some issues include a blown thermal fuse, a broken heating element, or a malfunctioning timer.

The first step is to check whether or not you have a proper electrical or gas supply. If you have electricity, you need to make sure your circuit breakers aren’t tripped and that both breakers are reset before plugging the appliance back in again.

If you have gas, you’ll want to be sure that your gas valve is open and in the right position. Otherwise, the dryer won’t get enough gas to operate properly. If this is the case, it’s probably time to replace your dryer.

How do you fix a dryer that won’t heat up?

If your dryer is not heating up after it runs, there are several common reasons. Some of these problems are easy to fix, while others require professional repair.

The first step is to disconnect your dryer from the power source. For electric dryers, this involves unclipping and/or removing the front or back panel.

Disconnecting the dryer from the power source allows you to inspect the heating element. Depending on your model, you may need to open the cabinet.

Once you’ve found the heating element, use a multi-meter to test it for continuity. If the meter reads negative, replace it.

Another possibility is that your gas dryer has a failed flame sensor. This part is responsible for detecting the heat that comes from the flame and triggering the igniter.

Why is my dryer running but not drying?

Dryers are a great way to dry your clothes quickly and efficiently. Today’s models have moisture sensors, high-tech systems and other features that can move you through a load of laundry in no time.

But, if you’re finding that your clothes are still damp after every cycle, it’s time to start troubleshooting. There are several common reasons why your dryer might not be drying your clothes fully — and most of them are easily fixed!

One of the most common problems is lint accumulation. Lint can cause a number of issues, from causing your dryer to run longer than needed to burning out the machine. To keep your dryer functioning safely, clean the lint trap regularly.

How do I know if my thermal fuse is blown?

A thermal fuse is a safety device that prevents an appliance from heating up. These fuses are found in many home appliances like washers, dryers, dishwashers, toaster ovens and coffeemakers.

They are used to detect excess heat caused by component failure or short circuits. If the temperature gets too high, they open and shut their circuits to prevent a fire or other damage.

You can test the thermal fuse with a multimeter to find out if it is blown. Simply touch the leads of your multimeter to both ends of the thermal fuse and watch the needle for movement.

A digital multimeter is the best way to test a thermal fuse because it provides accurate results. If the needle fails to move, it means that the fuse has blown.

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