I started this snowblower in the summer and it worked fine...both winters I've tried to use it it won't start. The first year I had it it worked very well.

It is very possible the carbureator needs a cleaning. Moisture can corrode the inner parts of them if left all summer. I find that the fuel usually does not go bad over the summer. I always start my snowblower once a month over the summer and then have no problems when the snow flies again. There was a time when mine was losing power and quitting also. There is a screw on the bottom of my carbureator that needed adjusting. If you are lucky that may be all you need. By turning mine in and out a bit I found the spot where the gas was correct and it worked fine again.

If you did not put gas stabilizer in your fuel tank when you stored your machine the gas will turn into varnish. Try draining the gas and put new gas and try to start it. Good luck

Check the ignition coil for spark if it does not make sure the ground wire that runs to the brake is releasingn if it is replace coil

Did you run the engine for about 15 minutes after you added the fuel conditioner? If not then the conditioner didn't get into the carburetor and you probably will need to take it apart and clean it again. The ethanol in today's fuel causes problems in carbs that sit

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the thermostat is powered by the unit or batteries if batteries they may be dead if the unit you need to check fuses outside at unit or reset breaker outside depending on age of installation

If you haven't already, dump out gas and put fresh in it and try this, if it doesn't work you will have to clean the carb, take it apart and clean all jets ports etc and put back together and you should be Good to Blow Snow, pretty common problem with Small Engines that set half the season.

if lights on dash are going out its the battery need 12v plus to even turn car over has this been happening since cold weather as mine does the same but only in winter summer its fine

POSSIBILITY HERE IS THAT THE FUEL PUMP IS ACTING UP. THE REASON IS BECAUSE WITH THE WARMER TEMPERATURES THE PUMP HAS TO WORK MORE AND THIS WILL CAUSE IT TO MALFUNCTION

Could be dirt in the carb. If this engine has a fuel cup on the bottom of the carb take it off and clean it out and clean the fuel jet. It is the little screw that has a little hole through it. If this has any dirt in it the engine will not run. A lot of engines I get in this is a quick fix as most people do not run the old fuel out before they store it for the summer. Check the spark plug as well and see if there is wet gas after trying to start. Maybe your choke is not working.