My pool heater stopped working. Eventually, following a failed attempt to repair the heater by another company (who listed a number of issues with the heater) Southwest came out and repaired the unit on the first visit. The issue was a defective on/off switch. The Southwest tech knew what he was doing and repaired the heater quickly and checked out the heater and reported that everything else was okay. The tech was very polite and accommodating. Very happy.