Customer communication and job documentation for repair techs: estimates, warranty checks, photos and honest promises

Start by checking whether the appliance is under manufacturer or extended warranty. If it is, the customer may be better served by the warranty provider; tell them before charging for work.

Under the federal Magnuson-Moss Warranty Act, a warrantor generally cannot make warranty coverage depend on using its brand of parts or service unless those are provided free or the FTC grants a waiver. A manufacturer can still deny coverage for damage actually caused by a third-party part or repair. Do not tell customers 'this will not affect your warranty' as a guarantee; explain the rule and use quality parts.

Some states regulate appliance repair directly. California, for example, requires a written estimate with the total price before repair, and the dealer cannot exceed it without consent. Check your state's rules and licensing before quoting.

Documentation is your evidence: what you found, what you measured, what you replaced, what you advised and what the customer declined. Photos with readings visible are better than notes alone.

Promises should match facts. Avoid 'certified', 'guaranteed fix' or 'it will last X years' unless true and in writing; state your own labor warranty terms clearly.