A reference for
the next decision.
Find the right question before choosing the next test. Original symptom guides, visual decision paths, and field worksheets for the work between a complaint and a supported repair.
What’s happening on this call?
17 guides
The washer won’t spin
Separate a missing spin command from a machine that cannot complete an earlier stage.
Symptom guide · Decision path + evidence checklistThe washer fills slowly
Follow water delivery before interpreting a long-fill complaint as a valve failure.
Symptom guide · Decision path + evidence checklistThe dryer tumbles but has no heat
A running drum proves one function. It does not prove the heat system is ready.
Symptom guide · Decision path + evidence checklistDrying takes too long
Separate heat production, air movement, moisture removal, and cycle termination.
Symptom guide · Decision path + evidence checklistA thermal device opens again
Treat the failed protection device and the condition that opened it as separate questions.
Symptom guide · Decision path + evidence checklistThe freezer is cold, but fresh food is warm
Identify the cabinet architecture before choosing an airflow or refrigeration hypothesis.
Symptom guide · Decision path + evidence checklistFrost returns after thawing
Thawing can restore airflow without identifying what interrupted normal operation.
Symptom guide · Decision path + evidence checklistDispenser flow is weak
Use a controlled comparison to locate a restriction without assuming the water valve failed.
Symptom guide · Decision path + evidence checklistWater remains in the dishwasher
Distinguish normal residual water, incomplete pump-out, and water that returns later.
Symptom guide · Decision path + evidence checklistThe cycle finishes, but dishes stay dirty
Organize the complaint around water reaching the load, wash conditions, and the residue itself.
Symptom guide · Decision path + evidence checklistThe electric oven does not heat
Separate control selection and affected modes from the individual heat-producing paths.
Symptom guide · Decision path + evidence checklistAn induction zone does not recognize the pan
Check the cookware/zone relationship before suspecting the power electronics.
Symptom guide · Decision path + evidence checklistRead the schematic by function
Turn a wiring diagram into a question you can test.
Field guide · Method + practice caseBefore blaming the board
Separate an input problem, an unmet condition, a command, and a physical response.
Field guide · Method + practice caseCapture an intermittent fault
Make the conditions reproducible before replacing a part that currently passes.
Field guide · Method + practice caseReview a callback without guessing
Ask whether the same complaint, the same failed part, and the same cause have actually returned.
Field guide · Method + practice caseFive habits that weaken a diagnosis
Replace confident assumptions with specific, reviewable evidence.
Field guide · Method + practice caseNo guides match that search.
Try a shorter symptom or another category.
Leave a trail of evidence.
Three editable worksheets cover intake, diagnostic reasoning, and repair verification. Fill them in, export your notes, or print a blank copy.
Open the worksheets ↗- Intake & symptom historyWhat happened, when, and under which conditions?
- Evidence & test planWhat would separate the competing explanations?
- Verification & handoffWhat was corrected, and what has been proven?
Built to complement the course.
The library is a concise field companion; AR-101 provides the deeper teaching and assessments. All 17 guides above are readable now. Full washer, dishwasher, and cooking course modules remain planned, even though their introductory field guides are available here.
This first edition focuses on selected service-call complaints and the diagnostic habits that apply across them. Keep the exact model documentation alongside the guide for specifications, fault-code definitions, and approved procedures.
Explore the AR-101 curriculum