Our heater was making a screaming, obnoxiously loud noise. The first time Lynn came out we could not reproduce the noise so he couldn't figure it out. With increasing sleepness nights I called him again but still couldn't make the noise. But Lynn was nice enough that he didn't charge for the second visit. In my last desperate attempt to try and fix it, he came in the morning and heard the noise that had been keeping my family awake most of the nights. It was the motor which he promptly fixed. He was kind and honest and didn't take our money needlessly as he could have. He initially thought it was the motor but couldn't be sure until he heard the noise so he didn't want to replace it having charged us for the motor without knowing it was the issue for sure. Lynn was absolutely fabulous and I would definitely use him in a split second with any air conditioning/heating issues. Thanks to Lynn, I am looking forward to a good night's sleep!