10 Reasons Why Your Generator Won’t Start

Professional Services

August 17, 2021

Top 10 reasons your emergency home generator won't start

During unpredictable Wisconsin winters, what do you do when your home loses power? Don’t sit in the dark and worry about your refrigerated food spoiling; depend on your generator to kick in and keep your heating and cooling systems going. But what if your generator won’t start?

When the engine of your generator won’t start, it’s frustrating, and facing extreme heat or cold without power is dangerous. Troubleshooting a broken generator is easy, though. Read on to learn about the most common reasons generators won’t start and what you can do to restore power to your home, including reasons why a generator runs but produces no power.

1. Fuel Tank Is Low

Your fuel should be the first thing you check. If your generator uses gasoline, check the fuel levels in the tank and add more fuel if the levels are low. For a propane-fueled generator, check the fuel level and ensure all the valves and tubing connecting the propane tank to the generator are open.

Regarding gasoline-powered generators, keep in mind that “stale” gasoline, any gas more than two months old, can damage the generator’s engine. Drain stale gasoline from the fuel tank and the carburetor, then fill the tank with fresh gasoline to prevent generator backfire.

2. Low Oil Levels in the Engine

Oil is vital to your generator’s engines. While most generators have a sensor to let you know when oil levels run low, it is still essential to check the oil levels with a dipstick. If you have low oil, refill with the right type of oil as directed by the manufacturer. This could be an excellent time to replace the oil filter to keep your generator in good condition and avoid costly breakdowns and emergency repairs.

3. Dead Battery

Just like your car, if your generator won’t start, it could be due to a dead battery or faulty connections. Try charging the battery via a 12-volt DC outlet or give it a jump courtesy of your car battery.

If that doesn’t work, then the battery is not likely the problem.

4. Cables Are Plugged into the Generator

When you try to start your generator, first check that nothing is plugged into it. Even if the cords plugged in have no appliances connected to them, unplug everything to isolate the reason your generator won’t start.

5. Adjust the Choke Control

The choke regulates the air levels within the carburetor when the engine starts up. If the motor cannot turn over, the amount of air mixing with the fuel may be the problem.

A cold engine should have the choke closed completely. Once the engine starts to warm up, you can adjust the choke to open fully. However, if the engine is still warm, the choke needs to be halfway open to restart the engine.

6. Clogged Air Filter

If adjusting the choke seems to help but doesn’t completely resolve the problem, it’s time to check the air filter as part of your routine generator maintenance. A clogged air filter can prevent the carburetor from getting the air needed for combustion. You can easily see the air filter, and if it looks dirty, replace it and move the choke back to closed.

7. Dirty Spark Plug

If you’ve reached this point and the engine still will not turn over, the spark plug may be dirty. Start by removing the spark plug from its socket. Replace your spark plug if:

It is covered with dirt or debris that you cannot brush off
There are any signs of broken electrodes or cracked

If you can remove the debris, clean the spark plug carefully and follow the generator owner’s manual to adjust the electrode gap. To check the spark plug, hold it against the engine’s crankcase and pull the generator’s recoil starter. If the spark plug is working, you will see blue sparks. Reinstall the spark plug and try starting the generator again.

8. Clogged Carburetor

You may have already drained the carburetor earlier when you checked for stale gasoline, but if not, now is the time to do it. Old gasoline forms a clog in the carburetor, preventing new fuel from getting through to initiate combustion.

To clean out your carburetor, start by closing the fuel valve. Remove the bowl at the bottom of the carburetor and use a brush or towels to clean out any debris. To remove clogs from a brass jet nozzle, insert a needle or straight pin. Once you’ve finished, turn the fuel valve back on before attempting to restart the generator.

9. Clogged Fuel Valve

If the carburetor is clogged, chances are the fuel valve is clogged as well. Check to ensure that the fuel and vacuum relief valves above the generator’s gas tank are open. If your generator still won’t start, unplug the fuel hose and check if gasoline can flow through the fuel line. Have a bucket handy to catch the fuel when you try this.

Also, check for clogs in the filter between the fuel valve and carburetor.

10. Oil Level Sensor Malfunctioning

The low oil sensor lets you know when your engine’s oil levels are too low. If the sensor malfunctions, however, you will not if the oil levels are low. Also, if you run your generator on an uneven surface, the oil level will be uneven, and the sensor may misread it as low.

Position your generator on an even surface. If the oil sensor still reads low, disconnect the sensor and try running the engine. If it starts, your oil sensor is at fault. Plugging it back in should reboot it, but if not, you will need to replace the sensor.

Generator Repair

If your generator won’t start after reviewing these common issues, or if you have any doubts about your ability to handle troubleshooting your generator, do not hesitate to search for “emergency generator repair services near me.”

At Professional Services, our skilled service technicians have the knowledge and experience to evaluate your generator and efficiently repair it. We can also help you choose a new generator if yours is beyond repair.

Learn more about generator repair on our website, or call Professional Services of Washington, WI, at (262) 214-5548 to schedule a consultation if your generator won’t start.

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Key Signs Your Heating System Needs Repair in Port Washington, WI

October 3, 2025

Imagine your heating system as a car engine; when it starts making strange noises or sputtering, it's a clear sign something's off. If you've noticed unusual sounds, inconsistent warmth, or rising energy bills, your heating system might be signaling for help. Ignoring these signs could lead to bigger issues down the line. So, what should you watch for to guarantee your home stays warm and comfortable? Unusual Noises From Your Heating System When you hear unusual noises coming from your heating system, it's a sign that something might be off. You might notice clanking, rattling, or hissing sounds that disrupt the usual hum of your heater. These noises can indicate loose or damaged components, or even airflow issues. Ignoring them could lead to more significant problems down the line. If you hear a high-pitched whine, it could signal a motor issue, while banging noises might mean parts are hitting each other. These sounds aren't just annoying; they often point to potential breakdowns that could leave you without heat when you need it most. Professional Services can help ensure your heating system is in top working condition. Don't hesitate to contact Professional Services for a thorough inspection. Our certified professionals can diagnose the source of those unsettling sounds and guarantee your heating system operates smoothly. Trust us to keep your home warm and comfortable all season long. Inconsistent Heating Throughout Your Home If you've noticed that some rooms in your home feel warmer than others, it might be time to investigate inconsistent heating. This issue can lead to uncomfortable living conditions and may indicate a problem with your heating system. Several factors could be causing this uneven warmth, and identifying them early can save you from more significant repairs down the line. Blocked vents or registers Ductwork leaks or damage Thermostat placement issues Insufficient insulation in certain areas Age or inefficiency of your heating unit Don't ignore these signs. If you find yourself constantly adjusting the thermostat or dealing with chilly corners, it's crucial to consult with a professional. They can pinpoint the issue and help restore your home's comfort, ensuring every room feels just right. Regular maintenance ensures safety and functionality of the furnace, which is essential for preventing such issues. Increased Energy Bills Noticing inconsistent heating throughout your home might lead to another alarming sign: increased energy bills. If you've seen a sudden spike in your monthly expenses, it's time to investigate. When your heating system struggles to maintain a comfortable temperature, it works harder, consuming more energy and driving up costs. You mightn't realize that a poorly functioning system can cause your bills to soar, but it happens more often than you think. Pay attention to your energy usage patterns. If your bills are consistently higher despite normal usage, it's a clear indicator something's off. Ignoring this issue can lead to even larger expenses down the road. Regular heating system maintenance can prevent these issues and help avoid costly repairs . Don't let increased energy bills become the norm for you. Reach out to a qualified HVAC technician to assess your heating system. They can identify problems and recommend repairs to restore efficiency, helping you save money in the long run. Frequent Cycling On and Off As your heating system struggles to maintain a consistent temperature, you might notice it cycling on and off more frequently than usual. This frequent cycling can indicate underlying issues that need attention. It can lead to increased wear and tear on your unit, ultimately shortening its lifespan. Here are some reasons why this might be happening: Thermostat issues : A faulty thermostat may not accurately sense temperature, causing erratic cycling. Dirty filters : Clogged filters restrict airflow, making your system work harder and cycle more. Duct leaks : Leaky ducts can lead to heat loss, forcing the system to compensate by cycling frequently. Oversized system : If your unit is too large for your space, it can lead to short-cycling. Refrigerant problems : Low refrigerant levels can affect the system's ability to heat efficiently. If you notice this issue, it's time to call a professional for a thorough inspection. Regular boiler maintenance programs can help prevent such problems and ensure efficient operation of your heating system. Poor Air Quality or Odors Frequent cycling can often lead to issues beyond just temperature regulation; poor air quality and unpleasant odors may also surface in your home. If you notice musty smells, dust buildup, or stale air, it's a clear sign your heating system might need attention. These odors can indicate mold, mildew, or even burnt dust collecting on your heating elements, which can affect your health. Additionally, if you experience increased allergy symptoms or respiratory issues, your system's filters may be clogged or ineffective. A simple filter replacement might help, but persistent problems could mean it's time to call in the experts. Professional Services offers air quality improvements with filtration and purification solutions, ensuring your home remains a comfortable and healthy environment. Don't ignore these signs; addressing them promptly can enhance your overall comfort and well-being. Schedule an inspection today to maintain the air quality you deserve.

Top 5 Heating Maintenance Tips for Thiensville, WI Homes

October 3, 2025

Many homeowners overlook the impact of simple maintenance on their heating systems. Proper upkeep can not only enhance efficiency but also extend the lifespan of your unit. By adopting a few straightforward practices, you can guarantee your home stays warm and comfortable all winter long. Curious about the top five maintenance tips that can make a real difference? Let's explore how you can keep your heating system in peak condition. Change Your Air Filters Regularly Changing your air filters regularly is one of the simplest yet most effective ways to maintain your heating system. This will guarantee that your furnace runs efficiently, which can greatly reduce energy costs. Clogged filters restrict airflow, forcing your system to work harder, leading to potential breakdowns. Aim to check your filters monthly and replace them every 1 to 3 months, depending on your usage and filter type. Using high-quality filters can further improve your indoor air quality, trapping dust, allergens, and other pollutants. When your air filters are clean, your heating system won't have to struggle, enhancing its lifespan. Plus, a well-maintained system heats your home more evenly, keeping you comfortable during chilly months. Regular maintenance improves system efficiency , so set a reminder to change those filters and enjoy the benefits of a well-functioning heating system! Schedule Annual Professional Inspections Scheduling annual professional inspections is essential for keeping your heating system in top shape. These inspections help identify potential issues before they become major problems, saving you time and money in the long run. During an inspection, a qualified technician will thoroughly assess your system, ensuring everything operates efficiently and safely. They'll check for wear and tear, clean components, and verify that your system meets current safety standards. This proactive approach is critical as heating systems often fail during the coldest winter months , leaving you uncomfortable. This proactive approach not only enhances your system's performance but also prolongs its lifespan. Plus, having a professional on hand gives you peace of mind, knowing your home is warm and comfortable when you need it most. Don't wait until the cold weather hits—schedule your annual inspection today with Professional Services. Our certified professionals are ready to provide a thorough check-up, helping you maintain a reliable heating system and ensuring your home stays cozy all winter long. Keep Vents and Radiators Clear To guarantee your heating system operates efficiently, keeping vents and radiators clear of obstructions is crucial. When airflow is restricted, your system has to work harder, leading to higher energy bills and potential breakdowns. Here are three simple steps to verify your heating components remain unobstructed: Regularly Inspect : Check vents and radiators for any furniture, curtains, or other items blocking airflow. Move obstacles to maximize efficiency. Dust and Clean : Accumulated dust can impede performance. Wipe down vents and radiators monthly to keep them clean and operational. Schedule Maintenance : Consider scheduling professional cleaning and inspections to confirm everything's working effectively and to catch any issues early. Regular maintenance ensures safety and functionality of the furnace and can help prevent hazardous situations. Test Your Thermostat Functionality How often do you check your thermostat's functionality? It's essential to guarantee your heating system operates efficiently. Start by setting your thermostat to your desired temperature and listen for the heating system to kick in. If it doesn't respond, try adjusting the temperature again. If your thermostat is battery-operated, you should also check the battery; a simple battery change can make a big difference. Additionally, clean any dust or debris from the thermostat to guarantee accurate readings. If you have a programmable thermostat, review the settings to confirm they're correctly programmed for your schedule. Don't hesitate to consult a professional if you notice any inconsistencies or malfunctions. Regular maintenance is key to avoiding common problems , ensuring your heating system runs smoothly. Regularly testing your thermostat helps avoid unexpected heating issues, guaranteeing your home stays warm and comfortable throughout the winter months. Keeping everything in check can save you money and headaches down the line! Insulate Your Home Properly Properly insulating your home is essential for maintaining a comfortable temperature and reducing energy costs. Good insulation keeps the warmth inside during the winter and blocks heat in the summer, making your HVAC system work more efficiently. Here are three key areas to focus on: Attic Insulation : Make sure your attic is well-insulated to prevent heat loss. Use fiberglass batts or spray foam for ideal results. Wall Insulation : Check your walls for gaps or insufficient insulation. Adding insulation can greatly improve your home's energy efficiency. Windows and Doors : Seal any drafts around windows and doors with weatherstripping or caulk. This simple step can help maintain your home's temperature.

Furnace Trouble? How to Decide Between Repair or Replacement in Port Washington, WI

October 3, 2025

When your furnace struggles to heat your home, it can feel like a battle between comfort and frustration. You might wonder if a simple repair could do the trick or if it's time to invest in a new unit altogether. Factors like age, efficiency, and odd noises can all play a role in your decision. So, how do you determine the best course of action? Let's explore the signs and considerations that can guide you. Signs Your Furnace Needs Repair Sometimes, your furnace gives off subtle hints that it needs repair before it completely breaks down. If you notice strange noises like banging or rattling, it's a sign something's off. You might also see uneven heating in your home; some rooms feel warm while others remain chilly. Pay attention to any unusual smells, particularly a burning odor, which could indicate dust buildup or a more serious issue. Frequent cycling on and off, known as short cycling, can also suggest that your furnace is struggling. Additionally, if your energy bills suddenly spike without explanation, your furnace may be working harder than it should. Finally, if you see an increase in humidity or dust levels in your home, it's time to call for help. Addressing these signs early can help prevent a total breakdown and guarantee your furnace runs efficiently. Regular maintenance and timely service from professionals can further enhance your furnace's performance. Factors to Consider for Replacement When should you seriously consider replacing your furnace instead of just repairing it? First, think about its age. If your furnace is over 15 years old, it might be time for a replacement, as newer models are more efficient. Next, consider the repair frequency. If you're calling for repairs frequently, those costs can add up, indicating a systemic issue. Pay attention to efficiency as well; if you notice rising energy bills that don't correlate with usage, your furnace may no longer be performing effectively. Additionally, think about safety. If your furnace is leaking carbon monoxide or has other safety concerns, replacement is vital. Finally, evaluate your comfort level. If your home isn't heating evenly or you're dealing with inconsistent temperatures, a new furnace could provide the comfort you need. Regular maintenance is essential for maintaining a comfortable indoor environment , and ignoring it could lead to further issues down the line. These factors can guide you in making an informed decision about whether to repair or replace your furnace. Cost Analysis: Repair vs. Replacement As you weigh the costs of repairing versus replacing your furnace, it's essential to evaluate both immediate expenses and long-term savings. Repairing your furnace may seem cheaper upfront, but consider how often you've had to call for repairs lately. If you're spending a significant amount on frequent fixes, a replacement might save you money in the long run. On the other hand, a new furnace comes with a higher initial cost but offers improved efficiency, which can lower your energy bills. Additionally, natural gas boilers can provide an environmentally friendly heating solution that may be worth considering. Factor in the potential for manufacturer warranties and lower maintenance costs over time. Additionally, consider financing options available through Professional Services to make a new unit more affordable. Age and Efficiency of Your Furnace The age and efficiency of your furnace play an essential role in deciding whether to repair or replace it. If your furnace is over 15 years old, it's likely less efficient and more prone to breakdowns. You'll want to evaluate the following factors: Energy Bills : An older furnace may cause your energy bills to rise due to decreased efficiency. Frequent Repairs : If you find yourself calling for repairs often, it might be a sign that replacement is more cost-effective. Performance Issues : Inconsistent heating or strange noises can indicate that your furnace isn't functioning properly. Assessing these aspects can help you determine if it's time for a new unit. Additionally, regular professional maintenance can help prolong the life of your heating system and improve efficiency. The Importance of Professional Consultation Understanding the nuances of your furnace's condition can be challenging, so consulting a professional is crucial. When you're faced with repair or replacement decisions, their expertise can guide you through the process. They'll accurately assess your furnace's performance and efficiency, helping you weigh the costs and benefits of each option. Professional technicians at Professional Services know the latest technologies and trends in HVAC systems. They can offer tailored recommendations based on your home's specific needs. Plus, their experience guarantees that you won't overlook any critical issues that could lead to further problems down the line.