When a Multiquip generator won’t start on a job site, it can bring your work to a standstill. Before you call a technician, there are several simple troubleshooting checks you can perform to resolve the issue and get your generator running again. The first check you should perform will determine if the engine will crank. What may seem like a dead battery could simply be an improperly used machine. Here’s what should be done:
Check the Emergency Stop Switch
An emergency stop switch that is improperly engaged is a common reason for a Multiquip generator not starting.
How to Assess the Problem:
- Check if the switch, which is typically located at the back of the generator, is pushed in. if it is, the unit won’t crank.
- If the switch is in the “on” position, the generator’s lights won’t illuminate, which will give the appearance of a dead battery.
How to Fix the Problem:
- Pull out the emergency stop knob and twist it.
- Turn the key to the “run” position.
- The lights should come on, indicating the unit is operational.
- If the lights don’t immediately turn on, try pulling the knob in and out several times, as dust can sometimes accumulate in the switch and cause Multiquip generator issues.
Inspect the Auto/Manual Switch
Another common scenario that can cause generator issues is when the toggle switch next to the key is turned to the “off” position.
How to Assess the Problem:
- Check if the toggle switch next to the key is turned to the “off” position.
- This switch is used to select between a generator’s “auto” (when using a timer or external device to start the generator) and “manual” mode.
- If the switch is off, the Multiquip generator won’t start.
How to Fix the Problem:
- Flip the toggle switch to the “manual” position.
- Attempt to start the machine.
- The lights should come on, and the engine should start normally.
If the generator still doesn’t start after following these steps, there may be another issue at play. It’s important to systematically troubleshoot the problem to identify the root cause and fix Multiquip generator issues to get your equipment back up and running.
Clogging and Choking
A clogged air filter or stuck choke can prevent your Multiquip generator from starting by restricting airflow to the engine.
How to Assess the Problem:
- Inspect the air filter for dirt, debris, or excessive wear.
- Check if the choke is stuck in the closed position.
How to Fix the Problem:
- Clean or replace the air filter if necessary.
- Ensure the choke is functioning properly and is not stuck in the closed position.
- Regular maintenance can help prevent clogging and choking issues. See our preventative maintenance tips for diesel generators post for more information.
Wiring Problems
Loose, damaged, or corroded wiring connections, especially those related to the starter motor and battery, can cause starting issues.
How to Assess the Problem:
- Check all wiring connections, particularly those related to the starter motor and battery.
- Look for any signs of damage, fraying, or loose connections.
How to Fix the Problem:
- Ensure all wiring connections are clean, tight, and free from corrosion.
- If you have multiple generators, consider paralleling your generator sets to increase redundancy and reliability.
Fuel System
Clogged or leaking fuel pipes, as well as old or contaminated fuel, can starve the engine of fuel and prevent starting.
How to Assess the Problem:
- Inspect the fuel lines for any signs of damage or blockage.
- Check the fuel level and quality. Old or contaminated fuel can cause starting problems.
How to Fix the Problem:
- If needed, clean or replace the fuel filter and pipes.
- Consider implementing an intelligent diesel fuel management system to monitor fuel quality and prevent unexpected shutdowns.
Spark Plugs
Fouled, worn, or damaged spark plugs can cause starting problems, as can overheating and pre-ignition.
How to Assess the Problem:
- Remove and inspect the spark plugs for signs of wear, damage, or excessive carbon buildup.
- Check if the spark plugs are gapped correctly.
How to Fix the Problem:
- Clean or replace the spark plugs as necessary, ensuring they are gapped correctly.
- Address any underlying issues that may be causing overheating and pre-ignition, as these can lead to premature spark plug failure.
Oil Level
Low oil levels can trigger a low oil pressure shutdown, while high levels can cause other performance issues.
How to Assess the problem:
- Check the oil level using the dipstick.
- Look for any signs of oil leaks or excessive oil consumption.
How to Fix the Problem:
- Add oil if needed to bring the level to the proper range.
- If the oil level is too high, drain some oil out of the tank.
- Regular oil changes and using the best generator oil for hot weather can help maintain optimal performance and prevent issues during the summer months.
Carburetor
A clogged or dirty carburetor can prevent the proper mixing of air and fuel, leading to starting difficulties.
How to Assess the Problem:
- Check for any signs of fuel leaks or excessive fuel consumption.
- Inspect the carburetor for dirt, debris, or varnish buildup.
How to Fix the Problem:
- Remove the carburetor and clean it thoroughly, making sure all the jets and passages are clear of debris.
- If the carburetor is severely damaged, it may need to be rebuilt or replaced.
Fuel Valve
A closed or malfunctioning fuel valve can block fuel flow from the tank to the engine, preventing starting.
How to Assess the Problem:
- Check if the fuel valve is in the open position.
- Inspect the fuel valve for any signs of damage or improper operation.
How to Fix the Problem:
- Ensure the fuel valve is open and allowing fuel to flow freely.
- If the valve is damaged or not working properly, it may need to be replaced.
Ignition Coil
A faulty ignition coil can’t provide enough voltage to fire the spark plugs, preventing the engine from starting or running poorly.
How to Assess the Problem:
- Test the ignition coil using a multimeter to ensure it’s functioning correctly.
- Check for any signs of damage or wear on the ignition coil.
How to Fix the Problem:
- If the coil is damaged or not working properly, it will need to be replaced.
Need Help with Your Multiquip Generator? Turnkey Industries Has You Covered
If you’ve tried these troubleshooting steps and your Multiquip generator still won’t start, it may be time to call in the professionals. At Turnkey Industries, we specialize in buying and selling pre-owned industrial generators, including Multiquip models. Our team of experts is here to help you with all your generator needs.
Whether you need a replacement generator, parts, or repair services, Turnkey Industries has you covered. We offer a wide selection of high-quality used generators that have undergone rigorous testing and inspection to ensure they meet our strict standards. Plus, with our worldwide shipping and immediate availability, you can get your generator up and running in no time.
Don’t let a malfunctioning generator slow you down. Contact Turnkey Industries today at call 713-823-0890 or visit our website at turnkey-industries.com to learn more about how we can help you with your Multiquip generator issues. Our knowledgeable staff is ready to assist you in finding the perfect solution for your generator needs.
