A.O. Smith ProMax GPDX-50, Instruction Manual

34

RESIDENTIAL GAS LIMITED WARRANTY 

•  owned by the original purchaser;
•  installed for indoor operation only;
•  used at temperatures not exceeding the maximum 
 

calibrated setting of its thermostat;

•  used at water pressure not exceeding the working 
 

pressure shown on the heater;

• 

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 lled with potable water, free to circulate at all times and 

with the tank free of damaging water sediment or scale 

 deposits;
•  used in a non-corrosive and non-contaminated 
 atmosphere;
•  used with factory approved anode(s) installed;
•  in its original installation location;
•  in the United States, its territories or possessions, and 
 Canada;
•  sized in accordance with proper sizing techniques for 
 

residential water heaters;

•  bearing a rating plate which has not been altered, defaced 
 

or removed except as required by the warrantor;

•  used in an open system or in a closed system with a 
 

properly sized and installed thermal expansion tank;

•  operated with properly installed drip leg in the gas supply 
 line;
• 

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 red with the fuel for which it was factory built;

• 

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 red at the factory rated input;

•  operated with the inner and outer combustion chamber 
 

doors in place and all factory seals to combustion 

 chamber 

intact.

•  installed with no attempted, nor actual modi

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 cation  or

alteration of the water heater’s design in any way,
including but not limited to, the attachment of non-
company approved appliances or equipment, including 
any additional aftermarket equipment introduced into the 
sealed system.

Any accident to the water heater or any part thereof (including 
freezing, 

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 re, 

fl

 oods, or lightning), any misuse, abuse or 

alteration of it, any operation of it in a modi

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 ed form, any 

operation of the water heater on desalinated (deionized) 
water, or any damage caused by attempts to repair tank 
leaks or parts, will void this warranty.  This warranty does 
not cover water heaters replaced for cosmetic reasons or for 
reasons of noise, taste, odor, discolored and/or rusty water.  
This warranty does not apply to water heaters used to heat 
pools, whirlpools or hot tubs or used for space heating where 
its sizing does not conform with speci

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 cations of the heating 

component manufacturer.

This warranty gives you speci

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 c legal rights, and you may 

have other rights which vary under the laws of each province. 
If any provision of this warranty is prohibited or invalid under 
applicable province law, that provision shall be ineffective to 
the extent of the prohibition or invalidity without invalidating 
the remainder of the affected provision or the other provisions 
of this warranty. 

THIS WARRANTY IS APPLICABLE TO THE ORIGINAL 
OWNER ONLY, in accordance with the warranty terms and 
conditions speci

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 ed below.

A. O. Smith Water Heaters (the warrantor) will furnish the 
ORIGINAL OWNER,  1) a replacement A. O. Smith water 
heater of equivalent size and current model if the glass-lined 
tank in this water heater leaks and,  2) a replacement part for 
any component part which fails. 

THE A. O. SMITH WATER HEATERS REPLACEMENT 
MODEL OR PART WILL BE WARRANTED FOR ONLY THE 
UNEXPIRED PORTION OF THE ORIGINAL WARRANTY. 
The warranty period will be determined by the original date 
of purchase of the water heater, or in the absence of a Bill 
of Sale verifying said date, from the date of manufacture 
indicated on rating plate af

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 xed to this water heater.  This 

warranty is not transferrable and applies to models listed 
below:

SERIES

TANK

PARTS

Promax 6-year Model

6-year

6-year

GPD, GPDX

When the water heater has been used for other than single 
family residential application;  

1.  The tank warranty shall be reduced to 1 year for 6 year
 models. 

2.  The parts warranty shall be reduced to 1 year for all 
 models. 

CONDITIONS AND EXCEPTIONS

This warranty shall apply only when the water heater is installed 
and operated in accordance with 1) all local 

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 re codes and 

plumbing codes, ordinances and regulations, 2) the printed 
instructions provided with it, 3) good industry practices, and 4) 
proper safety practices such as but not limited to a properly sized 
drain pan if installed in an area where leakage from the tank or 
its connections would result in damage to the area adjacent to 
the heater.  In addition, a new temperature and pressure relief 
valve, certi

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 ed by the Canadian Gas Association must have been 

properly installed and piped to the nearest drain.

This limited warranty shall apply only when the water heater is: