Amana heat pump question

[left]I recently purchased a reno property. It is a 2000 mobile home with an Intertherm unit. I called the same HVAC company that services my other homes and they said they could tune it up for about $2500. Great. I was already over budget on other fixes. They assured me a new unit wasnt needed, this one would last awhile yet. They came out, got it running and all was well. [left]Fast forward a month in. Big storm hits. I noticed the unit stopped working. I smell burning wires so I shut it off. Breakers and all. Tech comes out and says lightning hit caused wires to fry. This of course isn’t covered by my warranty so I get it fixed. I then notice half the house isn’t cooling. The crossover duct is old and torn. So, another $1k and that’s fixed. They tell me my coils are aging and they might not have been right about the unit lasting. They won’t of course give me credit and I’m now over $5k in with the initial tune up, wiring fix and the duct work. So I tell them— hey it’s working now. I’ll let it do it’s thing. They say okay but new unit is going to be $7k and call when I’m ready. It runs like a top for another few months. We got our first cold day here and my new tenants tell me heater isn’t turning on. Just a clicking sound. So I take a look. My HVAC company told me they won’t service this unit anymore (seems pretty rotten as I paid for a 2 year warranty but whatever). So I called another company in town just for a second opinion. The blower isn’t turning on. Maybe bad relay somewhere. New tech comes out and tells me yes, he thinks the relay is bad. He installs a new one. Tries to turn on unit. Blower starts but no heat. Now he tells me bad heating elements. Interesting because it was working fine before. But okay. He says he’ll come back tomorrow. I have to head to my day job so I head out too. Get a call from tenants the tech left the cooling system on with thermostat and system is running hog wild. I show up. He left all the covers off the system and the coils are frozen solid. Dang. I turn off system and turn the fan on to help thaw (water is overflowing from the drain pan). I let it thaw. Then I shut system down entirely. I am getting ready to leave and have a few choice words for this tech when I hear the fan turn back on. Weird. As I’m walking to the furnace room I smell burning. My walk turns in to a run and I immediately shut off the breakers. Did my motor burn up trying to run the AC all day? I have no idea. I’m worried not one but two companies have been having me throw money at a problem. I know at this point I need a new unit but gosh- I would have liked to not thrown money at this old one. Not to mention if I could’ve had it limp along til 2020 I could’ve had some tax money to replace. I guess I came to vent and all see if there’s any insight y’all can give. I’m usually pretty handy but I figured I’d let the experts take a crack. From what I’ve seen, they’ve done things even I know not to. [/left][/left]

Nordyne E2EB-015HB, Goodman HPT18-60W. AC and heat work normally but emer heat does not work. Pulled coils out and tested them - they are good. Emer light on thermostat does not come on. Have crossed the R and WE and then the R to E but coils do not come on. There is a switch on the lower lt side that has two relays on it - those relays don't close. I can't fine a picture of that switch to see what it is or if that could be the problem. If the thermostat needs to be changed I would like to keep an non-programmable one. Suggestions for what to get since the one I have is not made any more? Tks - jim