Flush Mounting The 941; Returning A 941 For Service - NorthStar 941X Addendum Reference Manual

Flush mounting the 941

When flush-mounting the unit, be sure to mount it on a flat
surface. Mounting on a curved surface can distort or break the
plastic and cause a breech in the waterproof seal. Do not
overtighten as case damage may occur and waterproof integrity
may be compromised. This will void the warranty due to physical
damage.

Returning a 941 for service

Before returning a 941 to Northstar for repair, you must contact
either your dealer or Northstar for instructions and a Returned
Materials Authorization (RMA) number: If you purchased your
unit through a dealer, call your dealer for an RMA number; if
you don't have a dealer, call the Northstar Service Department
for an RMA number.
Shipments without a proper RMA number will not be accepted.
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Addendum P/N GM210 032101