Fundamentals

Troubleshooting Fundamentals

The Weld That Passed Visual and Failed in Service

Troubleshooting Fundamentals

The Valve That Said Open and Was Not

Troubleshooting Fundamentals

The Two Systems That Were Fighting Through One Sensor

Troubleshooting Fundamentals

The Trench That Stood for Three Days and Failed on the Fourth

Troubleshooting Fundamentals

The Trap That Tested Good and Was Passing Steam

Troubleshooting Fundamentals

The System That Passed Every Check and Still Starved One Machine

Troubleshooting Fundamentals

The Space That Felt Cold at the Right Temperature

Troubleshooting Fundamentals

The Reading That Was Right and the Conclusion That Was Wrong

Troubleshooting Fundamentals

The Pump That Was Replaced Twice and Failed the Same Way Each Time

Troubleshooting Fundamentals

The Pump That Lost Flow Every Afternoon With Nothing Changed

Troubleshooting Fundamentals

The Partition That Was Built Right and Still Failed

Troubleshooting Fundamentals

The New Motor That Shook and the Old One That Did Not

Troubleshooting Fundamentals

The Mount That Held Until the Equipment Ran

Troubleshooting Fundamentals

The Motor That Ran Hot on a Healthy-Looking Supply

Troubleshooting Fundamentals

The Measurement That Was Right and Meaningless

Troubleshooting Fundamentals

The Loop That Froze With Antifreeze In It

Troubleshooting Fundamentals

The Load That Shifted in Transit and What the Rigging Said

Troubleshooting Fundamentals

The Line That Blocked Every Few Months in the Same Place

Troubleshooting Fundamentals

The Lighting Upgrade That Measured Better and Felt Worse

Troubleshooting Fundamentals

The Lift That Was Within Capacity and Still Went Wrong

Troubleshooting Fundamentals

The Heating System That Worked Until the Boiler Was Replaced

Troubleshooting Fundamentals

The Heat Exchanger That Failed Twice in One Year

Troubleshooting Fundamentals

The Fixture That Gurgled Only When Something Else Was Used

Troubleshooting Fundamentals

The Fire Watch That Was Posted and Did Not Work

Troubleshooting Fundamentals

The Fault That Was Upstream of Everything Anyone Checked

Troubleshooting Fundamentals

The Fall That Happened on the Way Down, Not the Way Up

Troubleshooting Fundamentals

The Detector That Alarmed Every Morning at the Same Time

Troubleshooting Fundamentals

The Compressor That Could Not Keep Up With No New Equipment Added

Troubleshooting Fundamentals

The Circuit That Read Fine and Failed Under Load

Troubleshooting Fundamentals

The Basement That Flooded Only During Long Rain