PAGE 01EXAMPLE
Service memory coverage
How much of the service history can be reconstructed at all?
Equipment identifiablehigh
Complaint usefully describedmedium
Cause / diagnosis presentlow
PAGE 02EXAMPLE
Where the work concentrates
Which brands and models absorb the most service work?
01Brand A · wall-hung boiler
02Brand B · heat pump
03Ventilation · HRV units
04Controls · thermostat
05Sanitary · water heaters
PAGE 03EXAMPLE
Service friction map
Where a job took extra movement. Signals, not a verdict.
Material needed
Second specialist
Manufacturer consulted
Extra time
Replacement instead of repair
Unclear completion
PAGE 04EXAMPLE
Recurring problems
Same equipment, same complaint, same fault code — with the confidence level attached.
Cluster A · fault code + modelHIGH CONFIDENCE
Cluster B · same diagnostic pathPOSSIBLE PATTERN
Cluster C · vague descriptionINSUFFICIENT EVIDENCE
PAGE 05EXAMPLE
Recovered service knowledge
Usable records become knowledge cards a technician can read tomorrow.
RAW TECHNICIAN'S NOTE
"that valve again, stuck. tapped it loose, then replaced it. on this type check the non-return valve too or you'll be back in no time"
KNOWLEDGE CARD
PRACTICAL FIX
Stuck 3-way valve — no hot water
SYMPTOMHeating warm, hot water cold
CHECKMove the valve motor by hand, feel for resistance
FIXFreeing it works temporarily — replacing it is the lasting fix
WATCH OUTTake a non-return valve along for this type
SOURCE · 7 historical work orders
Diagnostic checks
Practical fixes
What did not work
Parts & stock
Controls & integration
Building context
Job completion
PAGE 06EXAMPLE
Your service memory action plan
RECOVER NOW
Knowledge you can reuse today
Knowledge cards from your own history.
START CAPTURING
What you are not capturing now
Which fields make the difference for the next technician.
START MEASURING
What you need to measure to steer
Which records you need to be able to steer later.