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without invalidating the remainder of the affected provision 

or the other provisions of this warranty. 

service and laBor responsiBilitY

UNDER THIS LIMITED WARRANTY, THE WARRANTOR 

WILL  PROVIDE  ONLY A  REPLACEMENT  WATER 

HEATER  OR  PART  THEREOF.    THE  OWNER  IS 

RESPONSIBLE FOR ALL OTHER COSTS.  Such costs 

may include but are not limited to:

a.  Labor charges for service, removal, or reinstallation 

 

  of the water heater or part thereof.

b.  Shipping and delivery charges for forwarding the new 

 

  water  heater  or  replacement  part  from  the  nearest 

 

  distributor and returning the claimed defective heater 

 

  or part to such distributor. 

c.  All  cost  necessary  or  incidental  for  handling  and 

 

  administrative charges, and for any materials and/or 

 

  permits  required  for  installation  of  the  replacement 

 

  heater or part.

limitation on implied warranties

Implied  warranties,  including  any  warranty  of 

merchantability imposed on the sale of this heater under 

state law are limited to one year duration for the heater 

or any of its parts.  Some states do not allow limitations 

on  how  long  an  implied  warranty  lasts,  so  the  above 

limitations may not apply to you.

claim procedure

Any  claim  under  this  warranty  should  be  initiated  with 

the dealer who sold the heater, or with any other dealer 

handling the warrantor’s products. If this is not practical, 

the  owner  should  contact: A.O.  Smith  Corporation, 

 

500 Tennessee Waltz Parkway, Ashland City, TN 37015.  

Phone:  1.800.323.2636  or  visit  our  website:  www.

hotwater.com.  

For Canadian customers contact: A.O. Smith Enterprises 

LTD., P.O. Box 310, 768 Erie Street, Stratford, Ontario 

N5A6T3 or phone: 1.800.265.8520

Replacement Parts may be ordered through authorized 

servicers or distributors. Refer to your local Yellow Pages 

for  where  to  call  or  contact A.O.  Smith  Corporation, 

 

500 Tennessee Waltz Parkway, Ashland City, TN 37015.  

 

Phone:  1.800.433.2545  or  visit  our  website  at:  www.

hotwater.com/parts. 

The warrantor will only honor replacement with identical 

or  similar  water  heater  or  parts  thereof  which  are 

manufactured or distributed by the warrantor.

Dealer  replacements  are  made  subject  to  in-warranty 

validation by warrantor.

PROOF OF PURCHASE AND PROOF OF INSTALLATION 

DATE ARE REQUIRED TO SUPPORT WARRANTY CLAIM 

FROM  ORIGINAL  OWNER.    THIS  FORM  DOES  NOT 

CONSTITUTE PROOF OF PURCHASE OR PROOF OF 

INSTALLATION.

disclaimers

NO EXPRESSED WARRANTY HAS BEEN OR WILL BE  

MADE  IN  BEHALF  OF  THE  WARRANTOR  WITH 

RESPECT  TO  THE  MERCHANTABILITY  OF  THE 

HEATER OR THE INSTALLATION, OPERATION, REPAIR 

OR  REPLACEMENT  OF  THE  HEATER  OR  PARTS.  

THE  WARRANTOR  SHALL  NOT  BE  RESPONSIBLE 

FOR WATER DAMAGE, LOSS OF USE OF THE UNIT, 

INCONVENIENCE, LOSS OR DAMAGE TO PERSONAL 

PROPERTY, OR OTHER CONSEQUENTIAL DAMAGE.  

THE WARRANTOR SHALL NOT BE LIABLE BY VIRTUE 

OF THIS WARRANTY OR OTHERWISE FOR DAMAGE 

TO ANY PERSONS OR PROPERTY, WHETHER DIRECT 

OR INDIRECT, AND WHETHER ARISING IN CONTRACT 

OR IN TORT.

Should governmental regulations or industry standards 

prohibit the Manufacturer from furnishing a comparable 

model replacement under this warranty, the Owner will 

be furnished with the closest comparable water heater 

meeting the then current governmental regulations and 

industry standards. A supplementary fee may be assessed 

to cover the additional cost associated with the changes 

made to meet applicable regulations and standards.

important information

 

 

Model Number 

 ________________________________

 

  Serial Number 

 ________________________________        

installation information

  Date Installed   

  _______________________________ 

  Company’s Name 

 _____________________________

  Street or P.O. Box  

  ____________________________

  City, State, and Zip Code

 ________________________

  Phone Number

 ________________________________   

                                             

  Plumber’s Name 

 ______________________________

www.aosmithwaterheaters.com

Summary of Contents for AOSRE50400

Page 1: ...ECHNICALAND WARRANTY QUESTIONS SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS PURCHASED IF YOUARE UNSUCCESSFUL PLEASE WRITE TO THE COMPANY LISTED ON THE RATING PLATE ON THE WATER HEATER LISTED Instruction Manual RESIDENTIAL ELECTRIC 2 5 GALLON 120 VOLT WATER HEATER FOR POTABLE WATER HEATING ONLY NOT SUITABLE FOR SPACE HEATING ...

Page 2: ...S Qualified Installer A qualified installer must have ability equivalent to a licensed tradesman in the fields of plumbing and electrical installation of these appliances This would include a thorough understanding of the requirements of the National Electrical Code and applicable local electrical and plumbing codes and tools necessary to confirm proper installation and operation of the water heat...

Page 3: ... GENERAL SAFETY ...

Page 4: ...ter heater INSTALLATION OR SERVICE OF THIS WATER HEATER REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED TRADESMAN IN THE FIELD INVOLVED PLUMBING AND ELECTRICAL WORK ARE REQUIRED Examine the location to ensure the water heater complies with the Facts to Consider About the Location section in this manual 5 For California installation this water heater must be braced anchored or strapped to avoid f...

Page 5: ...abled If anyone using hot water in your home fits into one of these groups or if there is a local code or state law requiring a certain temperature water at the hot water tap then you must take special precautions In addition to using the lowest possible temperature setting that satisfies your hot water needs a means such as a mixing valve should be used at the hot water taps used by these people ...

Page 6: ...d by a leak detector or water shut off device used in conjunc tion with a piped drain pan These devices are available from some plumbing supply wholesalers and retailers and detect and react to leakage in various ways Sensors mounted in the drain pan that trigger an alarm or turn off the incoming water to the water heater when leakage is detected Sensors mounted in the drain pan that turn off the ...

Page 7: ...t against the bracket FIGURE 3A MOUNTING FLOOR 1 The floor selected must be capable of supporting double the weight of the unit when completely full of water 77 Ibs 2 The installation area must provide adequate clearances for removal of the front panel and servicing the unit 3 Place a suitable drain pan under the unit The pan must limit the water to a maximum depth of 2 1 2 inches and be 2 inches ...

Page 8: ...d systems do not allow for the expansion of heated water The water within the water heater tank expands as it is heated and increases the pressure of the water system If the relieving point of the water heater s temperature pressure relief valve is reached the valve will relieve the excess pressure The temperature pressure relief valve is not intended for the constant relief of thermal expansion T...

Page 9: ...flow may cause property damage The Discharge Pipe Shall not be smaller in size than the outlet pipe size of the valve or have any reducing couplings or other restrictions Shall not be plugged or blocked Shall be of material listed for hot water distribution Shall be installed so as to allow complete drainage of both the temperature pressure relief valve and the discharge pipe Shall terminate at an...

Page 10: ...10 WIRING DIAGRAM FIGURE 5 ...

Page 11: ...liar with the electric codes and practices or if you have any doubt even the slightest doubt in your ability to connect the wiring to this water heater obtain the service of a competent electrician Contact a local electrical contractor and or the local electric utility WATER HEATERS EQUIPPED FOR ONE VOLTAGE ONLY This water heater is equipped for one type voltage only Check the rating plate near th...

Page 12: ...r temperatures be used to avoid the risk of scalding It is further recommended in all cases that the water temperature thermostat be set for the lowest temperature which satisfies your hot water needs This will also provide the most energy efficient operation of the water heater KEEPING THE THERMOSTAT SETTING AT 120 F 49 C OR LOWER WILL REDUCE THE RISK OF SCALDS Figure 6 shows the approximate time...

Page 13: ...n the water heater this harmless bacteria is nontoxic to humans D An excess of active hydrogen in the tank This is caused by the corrosion protective action of the anode Smelly water may be eliminated or reduced in some water heater models by replacing the anode s with one of less active material and then chlorinating the water heater tank and all hot water lines Contact the local water heater sup...

Page 14: ...ater tanks are equipped with an anode rod The submerged rod sacrifices itself to protect the tank Instead of corroding the tank water ions attack and eat away the anode rod This does not affect the water s taste or color The rod must be maintained to keep the tank in operating condition NOTE The use of a water softener may decrease the life of the water heater tank Anode deterioration depends on w...

Page 15: ...n or replace it 1 Turn off and unplug the water heater from the electrical outlet and follow DRAINING INSTRUCTIONS 2 Remove the front panel see the REMOVING THE FRONT PANEL section in this manual Remove the insulation pad 3 Remove the two screws from the mounting bracket see Figure 10 being careful not to drop the screws into the unit as they will be difficult to retrieve Remove bracket and set sc...

Page 16: ...or replacing the element in ELEMENT CLEANING REPLACEMENT High Limit Switch Removal and replacement 1 Turn off and unplug the heater from the electrical outlet 2 Remove the front panel see the REMOVING THE FRONT PANEL section in this manual Remove the insulation pad Remove personnel barrier 3 Remove the four wires connected to the switch taking care to note the original placement of each wire 4 Usi...

Page 17: ...ater on the side of the tank may be condensation due to the panel or insulation not being in place E Water in the water heater bottom or on the floor may be from condensation loose connections or the relief valve DO NOT replace the water heater until a full inspection of all possible water sources is made and necessary corrective steps taken Leakage from other appliances water lines or ground seep...

Page 18: ...blem Possible Cause s Corrective Action These guidelines should be utilized by a qualified service agent TROUBLESHOOTING GUIDELINES Improperly sealed hot or cold supply connection relief valve or drain valve Leakage from other appliances or water lines No power to heater High Temperature Limit Switch open Non functioning thermostat Non functioning thermostat Improper calibration Thermostat set too...

Page 19: ... exist for repair parts or service simply contact the company it was purchased from or the manufacturer listed on the rating plate on the water heater Be sure to provide all pertinent facts when you call or visit Selling prices will be furnished on request or parts will be shipped at prevailing prices and you will be billed accordingly The model number of your Water Heater will be found on the rat...

Page 20: ...not exceeding the maximum calibrated setting of its thermostat used at water pressure not exceeding the working pressure shown on the heater filled 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 loca...

Page 21: ...ennessee Waltz Parkway Ashland City TN 37015 Phone 1 800 433 2545 or visit our website at www hotwater com parts The warrantor will only honor replacement with identical or similar water heater or parts thereof which are manufactured or distributed by the warrantor Dealer replacements are made subject to in warranty validation by warrantor PROOF OF PURCHASE AND PROOF OF INSTALLATION DATEARE REQUIR...

Page 22: ...____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ _____________________________...

Page 23: ...____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ _____________________________...

Page 24: ...24 www aosmithwaterheaters com ...

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