[Date]
[Name],
[Company and Address],
Dear —————– [Name],
Unfortunately, the ———- [Product, example: Cold Elite Air Conditioner unit you installed in our premises] on ————— [Date] is malfunctioning. [State nature of malfunction example: Instead of cold air, the unit expels room-temperature air.]
I would like to arrange an appointment for service under warranty #————— [Warranty Number] (a copy of which is enclosed, along with the sales receipt). Please call ————– [Name] at ————————– so that we can determine a mutually-convenient time.
Thanking you,
[Name & Signature]
