
How to document a service call (photos, readings, notes)
Good records make callbacks easier, support warranty and parts claims and protect you in disputes. Photograph the unit, labels and wiring before you touch anything, record actual readings with units, and note what you told the customer.
Before you start
- Ask before photographing the customer's home beyond the appliance area
Diagnostic steps
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Get lifetime accessOnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.