Interesting response. I didn't think about the burst pipes thing. Thanks for heads up. I didn't think it would get that cold though. I thought it may get down to 50 max outside. Should've checked the forecast anyways though. I don't know what he did, but the heat started working properly after he left. It hadn't gotten over 65 according to the thermostat since I turned the heat up Sunday afternoon. Once he left the temp quickly rose to 75 where I wanted it. I should've known better to inspect the parts he was doing but at that point I was so cold and didn't want to look at what he was doing. He was on his hands and knees in the snow outside. I guess I will wait and see if the blower motor dies. I only started paying attention to the noise so I don't know if it's making a weird noise. Expensive lesson I guess. You're saying the p/n is not for the blower motor? I searched for the part it's giving me blower motors, but with extra letters/numbers. That is kind of odd since on the paperwork he also did put a gibberish serial number for my unit. It's like someone was just doing asdafadfhkaa across the keyboard. Worst case scenario how much am I looking at to replace the unit including labor? Are newer units more energy efficient as well?

You state the original motor overheated when the insulation fell on the housing. Are you sure about this? I would think the motor would no longer operate if the internal mechanism became so hot to give off a strong smell. Are you sure the new motor is overheating? Does it feel very hot when you touch the housing? You stated you have changed the motor from a 1/3 HP to 1/2 HP. Have you set the air flow so that it is the same as the 1/3 HP motor? The smell may be coming from something unrelated to the motor. If the smell is giving you a headache then you should have a professional inspect the heat exchanger. You may have a more seious problem.

Thank you for the replies so far. I thought my reply went through the other day, but this forum just doesn't work great for me for some reason. I lost my original post a couple times as well! I'll try again. what is your thermostat setting... Set to 70 mostly now. what is outside temperature... It was mid 80s lately and what is your supply temp at several locations within your home??? ....what is age of your AC condenser?... I believe it is 15 years old, possibly more - Is your thermostat set correctly? I think so? - Did you change your filters? yes, within the last month/weeks - Check to see if your condenser is dirty The outside fan thing? Yes I cleaned it using Simple Green, but I will do this again - Check to see if there is a refrigerant leak We had it checked a few times in the last few years and it never even needed a top off, we haven't had the freon checked since last summer however. - Is there a leak in your ductwork? I went up there and looked around and did not find anything egregious other tham mentioned in the original post. THere is that rusted area that concerns me. And the main unit was leaking quite a bit of air from the duct to the main unit, and I tried to use HVAC tape to stop it up.

Here are 5 telltale symptoms of AC compressor failure. We’ll explain more about each one below. https://www.minisplitairconditioningsystem.org/ The compressor doesn’t turn on at all The system is blowing warm air The system keeps tripping the circuit breaker The outside unit shakes when it starts up The outside condensing unit is making strange noises Circuit breaker tripping. Does your outside condensing unit keep losing power and tripping the circuit breaker? This is a symptom of AC compressor failure because your compressor may be overheating and drawing too much power, causing the circuit breaker to trip. Here’s the important thing to know: don’t just keep resetting the circuit breaker and turning the system back on! Your circuit breaker is doing its job and protecting you from a potential fire hazard. AC circuit breaker tripping: WHAT TO DO FIRST: As we just mentioned, never keep turning it back on if the AC circuit breaker if it keeps tripping! You can follow the steps below once to make sure there really is a problem before continuing. Sometimes something like a lightning strike nearby can cause a one-time power surge that trips the breaker, and you’ll be fine once you turn it back on. Here are the first steps to take when your AC circuit breaker trips: Turn the air conditioning system OFF at the thermostat(s). At your electrical panel, turn the AC circuit breaker switch to the ON position. IMPORTANT: wait 30 minutes with the air conditioner OFF. Be sure that the thermostat remains OFF so that your air conditioner’s internal circuit breaker can reset. This can’t happen if the thermostat is signaling for cooling. After 30 minutes, set your air conditioner back to COOL. If you’re lucky, everything will work normally after this and the AC circuit breaker won’t trip again. You’re all set! However, if the AC circuit breaker immediately trips again, or the AC won’t come back on, you have a problem that needs to be diagnosed and repaired by a professional. Read the next section for possible causes. But what if your system seems to work ok for a little while, but then shuts off and trips the breaker again? If that happens, there’s one more thing you can try: changing your air filter. When your system filter is clogged with dust and debris, the fan motor must work harder and runs longer trying to draw air through the filter. In an attempt to do so, it may draw too much electricity and cause the AC circuit breaker to trip. Try replacing the filter to see if that makes a difference.