Return to replace (4) zone Argo panel: * shut power down at the switch next to the Argo panel stopping power to panel * Open up electrical panel to access all wiring * Label all high and low voltage wiring inside of panel * Disconnected and removed all high and low-voltage wiring from inside of Argo panel * Removed bad Argo panel from the wall * Installed and secured brand new Argo panel to plywood wall * Wire in and secure all high and low voltage connections, neatly inside the new Argo panel * Review all connections on new panel before returning power to the system * After returning power to the system- Call for heating on all the thermostats to confirm that the Argo panel is operational and all of the circulator pumps are on and running * Check the boiler- Found that the boiler was off on an error, indicating an open limit * Found that the low water cutoff was not receiving 24 V * Check and found a popped Fuse for the low voltage terminal block inside of the boiler * Replaced the