Why does my Stihl blower not start?

A leaf blower that won’t start at all may require fuel. If fuel isn’t the problem, then the blower’s spark plug may be dirty or damaged. Remove the spark plug, and wipe it dry with a clean rag. Crank the engine several times with the starter to clear the combustion chamber, and replace the spark plug.

Why is my Stihl leaf blower bogging down?

A dirty air filter is one of the most common causes behind a leaf blower that is bogging down: the air is enough for the engine to idle, but as soon as you switch to full-throttle, the machine will stall. All we need to do is replace the air filter. To do this, start by opening the air filter cover.

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How do you start a flooded Stihl BG55?

Why is my Stihl blower not blowing hard?

Common causes of leaf blowers not blowing hard include clogged carburetors, flooded engines, using old fuel, damaged spark plugs, or clogged fuel filters. Solutions include cleaning the carburetor, draining the engine, using fresh fuel, replacing the spark plugs, and cleaning the fuel filters.

Why does my Stihl blower not start? – Related Questions

Why is my air not blowing hard enough?

Problems like a fan clogged with dirt, a dead motor, a loose fan belt or a stuck wheel can all cause your blower to not work properly. These problems can keep the blower fan from blowing enough air out of your vents to keep you cool.

What causes a weak blower motor?

Like other components in your HVAC system, the blower motor can wear down over time. Some of the reasons a blower motor might fail are overheating, and excessive moisture. When dust, dirt, and debris build up, it can cause the windings and bearings to burn up more quickly.

How do I increase the pressure on my blower?

Adding any additional components in the flow path, such as heaters, nozzles, or air knives, will increase the pressure at the blower. Additionally, as air is heated by a heating component it will expand which acts in a similar way to constricting the airflow path.

Why does my blower motor only work on low speed?

Odds are good that the fan switch may be at fault, but a more likely reason is that a blower motor resistor that controls the voltage going to the blower has packed it in, resulting in only one speed remaining operable — usually the highest speed, which you may not always need depending on the temp of the outside air.

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How do I increase my blower speed?

You can increase or decrease the blower speed by slightly adjusting the pulley on the blower drive motor. To increase blower speed, slightly loosen the setscrew that holds the pulley to the driveshaft. Move or turn the pulley clockwise on the shaft one turn, then tighten setscrew.

What would cause the blower motor to draw low amps?

There might be more of a load on the double shaft motor and it is not strong enough to overcome the load, the motor slows down, the amp draw goes down. You might have a restriction in the duct, not a problem with the motor.

What are the signs of a blower motor resistor going out?

Signs of a Bad Blower Motor Resistor

Loss of HVAC fan control (total or certain speeds) The fan only works on its highest speed setting. No air coming from vents. Intermittent or inconsistent fan speed.

Which of the following is a common symptom of faulty blower motor?

Low/no airflow from vents.

The classic sign of a bad blower motor is restricted airflow coming from your air vents. If the blower motor is completely bad, then you’ll have no airflow at all.

How do you diagnose a blower motor problem?

If the blower motor isn’t running you should:
  1. Use voltmeter or ohmmeter to check for a blown fuse. If you find one, replace it.
  2. Start car and see if blower motor works.
  3. If the circuits are in good repair but the blower motor keeps blowing fuses, replace the blower motor [source: You Fix Cars].

What are the main factors that can cause a blowers to fail and why?

Common Causes of Blower Failure
  • POOR FILTER MAINTENANCE. These blowers, as with most airflow technologies, are air cooled machines.
  • Maintenance Recommendations. Filters should be changed as needed to maintain a differential pressure of less than 10″ of water pressure differential.
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Where is the blower motor reset button?

It is usually located inside the blower compartment on the side of the blower motor. Be cautious as the housing may be hot. If the button is popped up, press it down.

How do I reset my blower motor?

How to Find and Reset your Furnace Motor Blower
  1. Step 1: Turn off the power to the furnace.
  2. Step 2: Remove the blower compartment cover.
  3. Step 3: Make sure the blower is completely cooled off.
  4. Step 4: Locate the reset button.
  5. Step 5: Press the button in (assuming that this is your issue and that the button has popped).

Is there a fuse for the blower motor?

Many vehicles have two fuses for the blower motor, one in the interior fuse block and the other under the hood. The blower motor is usually under the dashboard on the passenger side.

Why does my leaf blower stop when I give it gas?

How do you know if your blower motor is shorted?

You want to see a resistance reading. If you get a zero reading that means the motor winding is shorted and may be the cause of the tripped breaker/blown fuse. If you get an infinite reading (overlimit or OL on most digital meters), that indicates an open motor winding.

How do you tell if a motor has a short circuit?

Measuring the insulation resistance between any two-phase windings, if the reading is minimal or zero, shows that there is a short circuit between the two-phase windings.

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