No heat can not figure out issue need senior tech. Tech out yesterday and system was running normally. Arrived today and all pipes near boiler for all zones are hot, wiring for zone valves was done previously. Zone for upstairs is getting 24v at zone valve and all pipes hot but baseboards will not get hot upstairs even with return and supply’s by boiler coming back hot. Customer would prefer senior tech. All zones are heating except for second floor which customer stated is rarely used.