In need of someone to help with my heat. When turned on it runs for about 3 minutes then clicks/ short out and cuts off. I recently had an eccobee thermostat and that went completely blank so I had the old thermostat put back in and now it’s shorting out. My system is a Trane system and I’ve been told that I need a new one but can’t afford it right now so I’m tasked to get it fixed instead.