1. Inspect the Thermostat
To start, make sure your thermostat is signaling your heat to turn on.
- Replace the batteries if the screen is not displaying anything. If the digital screen is scrambled, the thermostat might need to be swapped out.
- Make certain that the control is set to “heat” as opposed to “off” or “cool.”
- Make sure the program is set to the right day and time and is set to “run.” If you’re having problems getting out of the program, adjust the temperature by using the up/down arrows and pressing the “hold” button. This will make the furnace to start if thermostat programming is causing a problem.
- Set the temperature setting to 5 degrees above what the room temperature currently is.
If your furnace hasn’t started within a couple minutes, ensure it has power by moving the fan switch from “auto” to “on.” If the fan doesn’t start, your heating system could be without power.
If you use a smart thermostat—such as one manufactured by Nest, Ecobee, Lux, Honeywell or Bosch—troubleshooting will depend on your model. Check the manufacturer’s website for help. If you still can’t get your Wi-Fi thermostat to work, reachl us at 313-230-4053 for heating and cooling service.
2. Examine Breakers and Switches
Next, you will need to confirm your breaker and furnace switch are on.
- Locate your house’s main electrical panel. If you aren’t sure where it is, keep an eye out for a gray metal box in your basement, garage or closet.
- Ensure your hands and feet are dry prior to opening the panel or breakers.
- Locate the breaker titled “furnace” or “heat,” and double-check it’s reading “on.” If the breaker has tripped, it will be in the middle or “off” spot.
- Using one hand, firmly flip the breaker to the “on” position. If the breaker trips right away and pops back to “off,” don’t try to reset it and call a team member from Airtronic Heating & Cooling at 313-230-4053 immediately.
Regardless of your furnace’s age or brand, it has at minimum one ordinary wall switch situated on or by it.
- Make sure the control is facing up in the “on” position. If it was shut off, anticipate your furnace could take up to five minutes to ignite. (If you don’t know where to locate your furnace, check your basement, garage or utility closet. It might also be in a crawl space or attic.)
3. Get a New Air Filter
When it comes to furnace breakdowns, a filthy, full air filter is frequently the top culprit.
If your filter is too dirty:
- Your furnace won’t be able to stay on, or it might get too hot from restricted airflow.
- Your utility bills may go up because your heating system is running too often.
- Your heating system could stop working sooner than it should due to the fact a dusty filter triggers it to overwork.
- Your heating system can be cut off from power if an overly clogged filter is the cause of a tripped breaker.
While it depends on what model of heating system you own, your air filter is located in the interior of the blower compartment of your heating system, an attached filter case or wall-mounted return air grille.
To replace your filter:
- Cut the power to your heater.
- Pull out the filter and angle it toward the light. If you can’t view light through it, replace it.
- Install the new filter with the arrow motioning toward the furnace to prevent damage.
Flat filters ought to be replaced monthly, while pleated filters should last somewhere in the vicinity of three months. You may also use a washable filter that will work for about 10 years. If you have children or pets, you could have to change your filter sooner.
To make the procedure smoother in the future, use a permanent writing tool on your heater outside or ductwork to show the airflow direction and filter size.
4. Check the Condensate Pan
Also known as drain pans, condensate pans catch moisture your furnace removes from the air.
If water is leaking out of your heater or its pan has standing water in it, try these guidelines.
- If your pan contains a drain (look for a PVC pipe), double-check that it’s clear. If it should be drained, use a special pan-cleaning tablet you can get at home improvement or hardware shops.
- If your pan contains a pump, inspect the float switch. If the lever can’t be moved from the “up” position with liquid in the pan, reach us at 313-230-4053, because you will probably need a new pump.
5. Check for Furnace Error Codes
If malfunctions persist, take a look inside your heating system’s plastic window to confirm the blower motor’s status. Subject to the brand, the light might also be fixed on the exterior of your heater.
If you see anything except a steady, colored light or flickering green light, call us at 313-230-4053 for HVAC service. Your furnace may be communicating an error code that requires specialized service.
6. Clean the Flame Sensor
If your heating system makes an effort to work but switches off without distributing heat, a filthy flame sensor might be at fault. When this occurs, your heater will try to start three times before a safety device powers it down for approximately an hour.
If you feel comfortable with taking the panels off your heater, gently scrubbing your flame sensor is something you have the ability to do personally. Or, one of our heating service professionals is able to finish it for you.
If you are confident cleaning the sensor personally, you should have:
- A 1/4” hex screwdriver or wrench
- Bit of light grit sandpaper, steel wool or emery cloth
- A dry, clean paper towel
- Shut off the heating system’s power by using its wall switch or breaker. If your furnace’s gas valve isn’t electric, you must switch off the gas as well.
- Take off the heater’s front panel and follow the wire to the flame sensor.
- Unscrew the rod and use your sandpaper, steel wool or emery cloth to lightly clean the metal rod.
- Clear the rod with a paper towel.
- Screw the sensor back in.
- Secure the furnace doors.
- Turn the furnace’s power back on. It may go through a set of checks before resuming normal heating. If your heater doesn’t turn on, the sensor may require replacement or something else might be wrong. If this occurs, get in touch with us at 313-230-4053 for heating and cooling repair support.
7. Relight the Pilot Light
If you have an aging heater, the pilot light could be out. To reignite it, look for the instructions on a label on your heating system, or try these guidelines.
- Look for the lever on the bottom of your heating system marked “pilot,” “on” and “off.”
- Push the switch to the “off” position.
- Don’t do anything for at least five minutes to limit the possibility for sparking a fire.
- Move the knob to “pilot.”
- Press the “reset” switch as you push the flame of a long lighter to the pilot light opening.
- Depress the “reset” switch once the pilot light is ignited.
If you have gone through the instructions twice and the pilot light still won’t light or keep burning, call us at 313-230-4053 for furnace service.
Inspect Your Gas Delivery System
Try turning on an additional gas appliance. If it doesn’t work, your natural gas service might be turned off, or you may have run out of propane.