A specialty imports store in Folsom, California, reported that their store was running cold. Tech arrived and inspected several units. On RTU #5, tech found a loose 24v power connection at terminals. Tightened connections and system came back on in heating right away. On the #1 Lennox a/c, tech reset and jumped the unit on in heat mode. Heating started up, called EMS to have them cycle on/off on their end to test. #1 confirmed operational, EMS confirmed all other units are running fine now.
