How To Light The Pilot On A Williams Wall Heater

Do you have a Williams wall heater but don't know how to light up the pilot light? Or does the pilot light suddenly go out, and you don't know how to turn it back on? Well, don't worry, because we have researched these problems and have the answers you're looking for. 

Here are the steps to light the pilot on a Williams wall heater without calling for assistance:

  1. Open the control access panel.
  2. You should see two circles, one for the temperature, the more significant, and the smaller for gas control.
  3. Push the gas control knob and turn it off.
  4. Wait 5 minutes to clear out any gases.
  5. Push the gas control knob and turn it to pilot.
  6. Press the button again to make sure you hear the gas. Once you hear it, light it immediately.
  7. Push the knob and hold it while lighting up the pilot.
  8. After a minute of staying lit, release the button.
  9. If the pilot light is still lit after releasing the button, turn the gas control counterclockwise, and from the pilot, turn it on.
  10. Lastly, turn the temperature delta on and close the control access panel.

Now, you know how to light pilot without calling anyone or asking for assistance. Please continue reading to learn more about the Williams wall heater and other problems with the heater that you may need to fix.

What Is A Williams Wall Heater?

Williams wall furnace heaters are small, space-saving furnaces that are easy to install. Direct-vent wall heaters are preferred for home heating since they are attractive and cost-effective. They are available in 14,000, 22,000, and 30,000 BTU/hr units.

The wall heaters are a cost-effective choice for customers searching for area heating for a limited space. Consumers prefer Williams wall furnaces above others because of their improved appearance and silent functioning.

man trying to open access panel of a wall heater. How To Light The Pilot On A Williams Wall Heater

repair man opening wall heater. steps on How To Light The Pilot On A Williams Wall Heater

Steps To Turn Off The Pilot Light On A Williams Wall Heater

  1. Open the control access panel.
  2. Ensure that your heater thermostat is down or off and your pilot is the only fire burning.
  3. Push the temperature knob and turn it off.
  4. You won't see the fire in the pilot anymore.
  5. Close the control access panel.

For details on the process, you can watch this video.

Where Is The Reset Button On A Williams Wall Heater?

Every furnace has a reset button. It is usually red or yellow and found inside the blower area. It is pretty unusual for this type of heating system to require adjustments from time to time. Nonetheless, if the furnace must be reset regularly, a service specialist must inspect the heating system.

man manually adjusting water heater at home

Fixes For Williams Wall Heater Not Turning On

Your heater might work fine for some time but then suddenly stop working and refuse to turn on. There are several causes for this problem, some of which can be resolved without contacting a professional HVAC specialist. In certain circumstances, troubleshooting might get your furnace or heat pump running again without needing a repair call.

These troubleshooting steps will assist you in repairing issues that may be the root of this problem.

Clogged Flame Sensor

A furnace flame sensor recognizes the presence of a flame as the gas passes through the system. Suppose it becomes clogged by dust from burning. In that case, it may not accurately recognize the flame and is improperly forced to close the furnace for safety, even if everything else is operating perfectly.

Follow these troubleshooting methods to clean the flame sensor:

  1. Turn off the power and the gas to the furnace.
  2. Take off the access panel.
  3. Locate a flame sensor and use a 14-inch hex wrench to detach it. Slide it out carefully. You may have to remove the wire to have greater access.
  4. Gently scrape the flame sensor rod with light grain sandpaper to clean carbon and soot.
  5. Wipe the sensor clean with a clean towel.
  6. If required, reconnect the wires and reconnect the flame sensor.
  7. Reinstall the access panel and reconnect the gas and electrical power.

Clogged Air Filter

A clogged air filter may cause the temperature inside of the furnace to increase to dangerous levels. If this occurs, the furnace shuts down to protect components such as the heat exchanger and other equipment. Examine the filter and replace it if necessary.

Thermostat Problem

In most cases, the thermostat is in charge of controlling the heating unit. As a result, you must evaluate the Williams wall furnace thermostat to establish whether the problem is with the thermostat's power. Examine the thermostat's display. It could be a power issue if turned on, but the screen is black.

Some thermostats include batteries, so try replacing the batteries. Check the house circuit breaker box as well. Check if the breaker controlling the electricity towards the thermostat has not malfunctioned. If necessary, you will need to reset it.

Boiler system and laundry in a basement interior

Resetting The Electric Heating System

Here are the steps to follow when resetting your electric heating system:

  1. Switch off the electricity by flipping the breaker in the circuit box.
  2. Find and push the reset button on the heater. It is typically situated near the blower motor inside the blower area. Be cautious since it may be hot.
  3. Press the button if you have already found it.
  4. Return the cover to the blower area and switch on the electricity.

Wrong Thermostat Settings

The heater will not turn on when you set the thermostat incorrectly. Ensure that the thermostat is set to "Heat," and the average temperature should be a few times hotter than the room temperature.

No Power To Furnace

Since all furnaces demand electricity and gas furnaces require natural gas utility supplies, your furnace or heater will not operate without power or fuel. As a result, you must determine if the system has power or gasoline.

  1. Examine the circuit box. Check that the breaker that controls the power to your unit is not damaged and that the air handler does not cause malfunction.
  2. Reset the circuit if the air handler has broken. Check the manual on/off switches on your device to make sure that they have not been mistakenly flipped.
  3. Examine the furnace for a blown fuse, and replace it if necessary. 

Loose Access Door

Many heating system types include a safety mechanism that prevents them from operating if the access panels are not secured. It prevents accidents and internal component damage.

What To Do When Your William Wall Heater Does Not Ignite

The Williams wall furnace pilot light will not stay illuminated due to an obstruction in the pilot tube. As a result, you must deactivate the gas, clean the pipe with an air compressor, and relight the pilot. If it does not work, you must contact a maintenance specialist or replace the thermocouple.

Dirty Electronic Ignition

If the furnace is reluctant to ignite at startup, it might be due to carbon deposits, which you can remove by spraying the ignitor probe with compressed gas. Compressed air cans come with long straw-like applicators, and if you tip the applicator straight at the probe, the blast of air may do the work.

Check this compressed can of air on Amazon

If your furnace has a spark ignitor performing erratically, it may be coated with soot, and a burst of compressed air could be enough to clear it.

What If Your Furnace Shuts Down And Does Not Turn On Again?

If the furnace is not turning on, check to see if the filter is clean. Filters that are clogged reduce airflow and might hinder the furnace from operating. Additional reasons it won't start include incorrect thermostat settings, not turning on the gas line, or defective pilot light.

Dirty air conditioner with dust blocking the air flow

Dirty Air Filter

If you don't change your filters regularly, your vents and registers could be entirely blocked. This will affect the proper airflow of your furnace. First, ensure that the furnace filter is clean and recently replaced, then verify that any vent registers are free of clogs and dirt.

Dirty Flame Sensor

The flame sensor is one of the common issues whenever your furnace doesn't want to ignite. If you hear a click on your furnace and it doesn't light up, this is usually the problem. To resolve this issue, here are the steps:

  1. Turn off the furnace.
  2. Close the gas valve.
  3. Take out the furnace flame sensor.
  4. Using an emery cloth, clean the sensor.
  5. Replace the flame sensor.
  6. Start the furnace again.

Woman adjusting the temperature on valve of a radiator at home. How To Light The Pilot On A Williams Wall Heater


In this post, we've talked about how to light the pilot on a Williams wall furnace and other problems that may be happening within your unit. If problems still persist even after all the steps above, it might be time to call in a professional to have a look at your heater.

If you found this post helpful, then check out these other helpful posts!

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