CUSTOMER STATED: water heater throwing a code 12 TECHNICIAN NOTES: Found 4 tankless water heaters all connected together unit 4 is throwing a code 12 RESOLUTION/RECOMMENDATIONS: flush and clean flame rods and rerun intake vents for the units JOB NOTES: JOB STATUS: COMPLETE/NOTCOMPLETE (RETURN TRIP NEEDED?) PARTS: (IF INCOMPLETE ARE STOCK OR SPECIAL ORDER PARTS NEEDED?) AUTHO: (AUTHO CODE OR WHO YOU SPOKE TO) ESTIMATES: need to build estimates with Robert