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Stihl 550 blower starts, runs, then shuts off. The switch goes to the off position. It's almost like it gets to a certain temperature and then won't run until it cools down. Suggestions?

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6 Suggested Answers

6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: craftsman 25cc edger has trouble starting. once started it will run for 5 - 10 minutes and then shut shut off. Will not start again until it cools down. Changed the spark plug , but it has the same pr

Dump the fuel in the tank, get new gas and new oil and start over. Get a carbeurator cleaner additive for the gas as your carb. is dirty resulting in the sporatic operation.

A spray carb. cleaner that you squirt into the air intake by removing the air filter will also work for you. In fact, when you are getting the carb. cleaner get a new air cleaner and a new spark plug. get back and let me know how u make out.

Posted on May 20, 2009

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  • 4088 Answers

SOURCE: Chainsaw starts off running strong gets hot and quits after 10

You might try blowing with compressed air around the cylinder and head to get rid of the accumulated sawdust. Also, the high speed needle on the carburetor might be set too lean--with engine warm, adjust CCW until engine 4-strokes unloaded, but smooths out when lightly loaded (cutting wood). If too rich, it won't stop 4-stroking.

Posted on Jul 05, 2009

  • 257 Answers

SOURCE: Kill switch on Stihl BG 75 leaf blower not working

when engine cool,, spray wd 40 into the switch and work it a dozen or so times and clen it out

Posted on Aug 12, 2009

AUTODOC01
  • 216 Answers

SOURCE: Wont start when hot

might be coil ? you can test it with and ohm meter should be within specs on both primary and secondary sides ? but try this first to see if its a vapor lock or fuel hose issue ? when it wont start get you a can of starting fluid and spray the air filter see if it restarts then ? this will tell you its fuel not spark ? then you can recheck hoses and primerbulb ? hope this helps

Posted on Aug 27, 2009

glennsmart
  • 818 Answers

SOURCE: When idling my jeep overheats. The cooling fan is

At idling speed an engine does build up a lot of heat and the cooling fan will kick in. In slow moving traffic or traffic jams the temperature gauge can touch the red - particularly on hot days. The reason it cools down when you start moving is because of the air flow through the radiator.

Presumably there are no leaks from the cooling system otherwise you would have mentioned it. In normal circumstances the fan will not be running as you are driving at speed, as the air-flow through the radiator is sufficient to cool things. The fan only kicks in to get rid of excess heat - and this usually occurs at idling speed or after you have parked the car.

If the fan is running all the time as you drive, this points to either a fault in the fan switch, or the car is running too hot. presumably in normal driving the fan isn't running and the temperature gauge reads normal?

It is common - in stationary traffic many cars overheat (particularly big engined models) try to stall and 'cut out'. Restarting can be difficult until the engine cools down.

Is your car overheating in normal driving conditions or just at idle speed? Overheating in normal driving conditions can be caused by things like a failing water pump, blocked radiator, collapsed hose, faulty thermostat or, in the worst case scenario, cylinder head problems.

Overheating at idling speed is 'common'. Check your coolant level. If your car isn't using/losing coolant then there probably is no major problem. You can flush out the cooling system and refill with new coolant - and also check your radiator. Are the cooling fins crumbling with age? Or maybe they're partly clogged with insects and debris from the road? A blast with a hosepipe wil sort that out ..

The question is how much does your car overheat in normal driving? If it doesn't .. it appears as though you have nothing to worry about as such. Most cars have 2 speed fans... the 2nd faster stage kicks in at some point dependant on engine temperature. Perfectly normal.

Posted on Aug 14, 2010

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1 Answer

Why doesn't my on/off switch work?


Check at the ignition coil that switch is ground the coil when switch to off position. If this is okay then double that this terminal is being ground fully by using a jumper that you can ground while the blower is running if it still does not kill it then the coil is bad.

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well there are several Torx bit screws holding just about any mordern Stihl product together. most likely need to remove the recoil first and then the four perimeter screws... just above the gas tank deep in there you will see the bottom 2... yes a pain !!!

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Heil nulk075dg05


You have a dirty or bad heat sensor. When you remove the front panel on you furnace you will see a probe that is 2 or 3 inches long that is in the flame when the furnace fires up. If it doesn't detect a certain temperature within the first 30 or 40 seconds it shuts down the furnace. You can either clean the probe off with sandpaper, or purchase a new one. They aren't very expensive and are easy to replace. In my experience it is usually a build up of carbon on the sensor and a good cleaning with sandpaper and alcohol usually takes care of the problem.

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How to adjust my throttle cable on my backpack blower br 550 sthil


the cable has streched out
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you could always look up the manual
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I have a White Rodgers 50E47-843 Ignition control, my gas furnace gets the call for heat and the exhaust fan starts and runs for 1 min before the LED lights yellow for 2 seconds and then starts the hot...


A certain sequence of events has to occur to start normal operation. My furnace would start the stack blower which would then run forever without the furnace starting up. The service tech replaced the stack blower controller and the ignitor to get things running right again. Remember that some stages of startup are temperature dependent. For example, the burner has to heat the bonnet enough to close a thermal switch and turn on the main.blower.

Oct 26, 2013 | Heating & Cooling

1 Answer

Need repair Manuel for Stihl br-550 blower


A shop like www.arcolawn.com can get you Stihl tools and parts.
It sounds like your carburetor is not meetering the fuel properly. A rebuild may work but the carburetors on many machines have fropped in half in the past 2 years.

You may have a bad seal on the crank shaft or an air leak somewhere. If you take it to a dealer most shops charge less than an hour time to perform a full check on the machine and you can do the work.

Good luck

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May 30, 2010 | Oregon Scientific Complete Carburetor for...

1 Answer

Kill switch on Stihl BG 75 leaf blower not working


when engine cool,, spray wd 40 into the switch and work it a dozen or so times and clen it out

Aug 12, 2009 | Garden

1 Answer

Main limit switch


I am providing some information, but I encourage you to have a furnace technician look at your furnace. The reason is; the limit switch trips when there is a problem that may present a fire or combustion hazard. I've seen these switches go bad, but not very often. Usually they are tripping because the plenum is sooted up and excessive heat builds in the combustion chamber. This is common in older furnaces that have pilot flames- the flame runs all year and soot deposits in the plenum, plugging the air flow through the combustion chamber after years of use.

The limit switch is a safety control switch located on the furnace just below the plenum. If the plenum gets too hot, the limit switch shuts off the burner. It also shuts off the blower when the temperature drops to a certain level after the burner has shut off. If the blower runs continuously, either the blower control on the thermostat has been set to the ON position or the limit control switch needs adjustment. Check the thermostat first. If the blower control has been set to ON, change it to AUTO; if the blower control is already on AUTO, the limit switch needs adjusting.

To adjust the switch, remove the control's cover. Under it is a toothed dial with one side marked LIMIT; don't touch this side. The other side of the control is marked FAN. There are two pointers on the fan side; the blower goes on at the upper pointer setting and turns off at the lower pointer setting. The pointers should be set about 25 degrees apart. Set the upper pointer at about 115 degrees Fahrenheit and the lower one at about 90 degrees Fahrenheit.

Mar 15, 2009 | Heating & Cooling

2 Answers

No heat


No Blower in Floor Mode
A customer arrives with a 1983 to 1995 Full Size Ford, Lincoln, or Mercury
automobile with automatic temperature control. If the complaint is no blower operation when
the floor mode is selected, the vehicle may have a problem with the thermal blower lockout
switch also referred to as the CELO (cold engine lock out switch).
The thermal blower lock out switch is located in the heater core intake hose. The two
wire switch has a thermal element with a small set of contacts, the contacts are open when the
coolant is below 120°F and closed when the coolant is above 120°F. The thermal blower lock
out switch also contains a vacuum switch, which applies vacuum to the outside/recirculate
valve when the system is in the floor position. When the engine coolant is below 120 degrees
and the selector is set to floor position, the thermal blower lock out prevents blower from
turning on and closes off the outside air during engine warm-up. When the coolant
temperature is above 120 degrees, and the selector is set to the floor position, the thermal
blower lock out switch allows the blower to operate and opens the outside air door.
In order to diagnose this problem, test the thermal blower lockout switch with the
engine at normal operating temperature (above 120°F). Unplug the wire harness connector
from the thermal blower lockout switch. Using a 15-amp fused wire, jumper the harness
terminals to test the switch. If the blower comes on, the thermal blower lock out switch is
faulty. If the blower doesn’t come on, look for an open between the control head selector and
thermal blower lock out switch.
In some cases the blower may continually run even when the engine temperature is
below 120 degrees. Unplug the thermal blower lock out switch and if the blower motor turns
off, the thermal blower lock out switch is faulty. If the motor continues to run, look for a
short to power between the control head selector and thermal blower lock out switch

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