I want to sing praises for the techs at Heartland. Especially, Chris , John and supervisor Greg. These three guys worked so hard on our unit until they found our problem. We were very impressed with their knowledge of our unit. We had a problem of our fridge shutting down while traveling. No one else could figure out what was wrong but the techs at Heartland did and we really appreciate all the work they did. We traveled yesterday for almost 11 hours and when we finally stopped the inverter was on and so was our fridge! Thank you so much, Chris, John and Greg