NO heat on the main level system due to gas valve not releasing gas. Gas meter is turned ON, draft inducer motor and igniter works, but gas valve don’t. Got power from the circuit board to the gas valve, but it doesn’t work. Gas is on at the furnace. Gas valve will need to be replaced, in order to complete full diagnostic. Customer has another company that maintains his equipment and will contact them. I sent estimates to replace gas valve and told him that we will be happy to serve his house and fix any issue with his equipment.