You may be able to do some quick fixes by yourself. This could have to do with improperly cleaned coils, clogged air filter or anything that causes your air conditioner to overheat. Yes, you may still need a pro but we had the same problem and got ours to start running again by following some simple steps. See link below. If that doesn't work, ask again because I know some professional steps you can take. Also, VERY IMPORTANT. Turn off the power to your air conditioner before using any metal tools to mess with it. You can do that at your circuit breaker, as long as you know which one has power to your air conditioner. Here is a link that might be useful: Air conditioner won't work

I got it working! Funny story.... At dovetails' suggestion, I contacted Trane Canada. It wasn't clear on their website whom the appropriate contact would be, so I emailed the service manager for the Northwest. He called me back immediately. Said he was actually with the Commercial division but thought he could help me. I told him the thermostat was fine but he had me check it anyway. It is fine. I told him my husband checked the circuit breaker and it is fine. He had me check it anyway. It didn't look tripped but I switched it off and on anyway. I go outside.....and hear the sweet, sweet sound of my compressor working! I'm going to razz my husband -my engineer husband - real bad when he gets home to this lovely cool house on this 30 degree scorcher day. To be fair, I didn't think to check it and switch it off and on myself. The Trane guy said sometimes when it's tripped the switch barely moves and you can't tell just by looking. I learned a new skill today. Thanks for all your input and to dovetails for suggesting contacting the manufacturer directly. Unfortunately my neighbour will be most unhappy about this development. He harassed me all last summer over the noise from the compressor (I believe ours is one of the quieter models) and it is below the city bylaw for daytime use. I got to know my bylaw officers very well last summer. Fortunately they realize he is the unreasonable one. Every time I turned on AC he would park his lawnmower or some loud power tool beside his fence and run it without using it. It was always many decibels louder than my AC. He has kicked around a bag of glass bottles? slammed his garage door repeatedly, anything to create a disturbance. He's yelled at me to "shut that F...ing thing off!" He's unsuccessfully tried to engage other neighbours in his campaign. One time he flashed a bright spotlight on my bedroom window. He's been defiant with Bylaw that if I can use my AC, he can make whatever noise he wants. They appear to little clout to stop him. They wanted to lay a charge against him and take him to court. Then the city attorney called me and said he wouldn't waste resources taking to court a "dispute between two neighbours" as though I have done something wrong too. This neighbour has done all of this being well aware that my AC was prescribed by neurologist as a medical device due to the debilitating effects of heat on my multiple sclerosis. Here we go....... Thanks again everyone!

It was indeed stolen. The property was bank owned and they had to get it to a habitable state to sell to regular homebuyers so installed a new one. The problem is the contractor installed a brand new air handler, thermostat and condenser onto an existing drain line and lineset. The AC apparently worked while being tested and was then left as a completed job. I bought the house and started the rehab. Straight away it kept cutting out or blowing warm air. It turns out the drain line was clogged which stopped condensation draining so a float switch kept cutting out (this took a couple of visits and a new float switchto figure out). But there also seems to have been a second problem with the line set, as whatever work is done (so far a new float switch, new second condenser, a new second compressor, a new evaporation coil...) it hasn't fixed the problem of the ac running and running and blowing warm air. My question is, am I expected to pay for a new lineset if he installs one as another attempt to fix this 4 month problem? So far it has all been under warranty.

Load shedding/demand management is not a new idea. It's certainly an appropriate strategy when user demand for electricity exceeds transmission capability--irrespective of the cost of electricity or what state you happen to live in. Whether it's appropriate for a particular user to volunteer to participate in a load shedding program requires them to weigh a number of factors including their lifestyle and health needs and the performance of their particular home. Bumping a temperature setpoint up or down in a well-insulated home, for example, will have different implications than a poorly insulated one. Shedding the hot water heating load will have different implications for a large family or a single person and for a system which has a large versus a small tank. As for me, I'd rather have the set-point of my air conditioner raised a couple of degrees than the alternatives if the alternatives are a loss of a power grid or rolling blackouts. But, that's a personal choice.