The Rinnai warranty does not cover any failures or operating difficulties due to the following:
Accident, abuse, or misuse
Alteration
Misapplication
Force majeure
Improper installation (such as but not limited to inadequate water quality, condensate damage, improper venting, incorrect gas type, incorrect gas or water pressure, or absence of a drain pan under the appliance)
Improper maintenance (such as but not limited to scale build-up, freeze damage, or vent blockage)
Incorrect sizing
Any other causes other than defects in materials or workmanship
This Warranty does not apply to any product whose serial number or manufacture date has been defaced. It also does not cover any product used in an application that uses chemically treated water, such as a pool or spa heater. This appliance is suitable for filling large or whirlpool bathtubs with potable water. Refer to the Water Quality Section in the Operation and Installation Manual.
