Today I arrived on site Heating System Repair:Returned to complete the installation. Installed a new igniter. Installed a new flame sensor. Replaced malfunctioning igniter and flame sensor. Replaced NC-1 Neutralizer minerals Rocks( condensation) Upon arriving at the property, I explained to the client about the repair scheduled for today. The client directed me to the garage where the boiler unit is. Let the repair be. I proceeded to make a visual inspection of the unit. I proceeded to disassemble the igniter and the defective flame sensor. I removed both parts of the boiler unit. I proceeded to remove the NC-1 neutralize canister from the drain line. I proceeded to wash and rinse the canister. I added the new neutralized mineral rocks in the cartridge. Install the neutralizing cartridge on the drain line of the boiler. I proceeded to install the igniter and the flame sensor in the United. I successfully completed the repair. I started the system and monitored for about