Upon my arrival in Dale the customer asked me to take a look into the Reme halo to verify it is working because he got an alert to check the bulb. I checked into this and found the voltage conversion system faulted for the Reme halo. I wired the Reme halo straight to the systems main 24v supply. I then performed the fall evaluation on one heat pump system. During the evaluation I found the auxiliary heating system has a faulted heating element, the air movement system has a significant amount of rust and the electrical safety system is bad. I then moved to the outdoor system and competed the evaluation. When i went back inside to put the thermostat back to its original state I found that it was not operating. I checked into this issue and found that the systems main voltage conversion system faulted after the evaluation was complete. I spoke with the customer about all the repair recommendations.