Rheem - Water Heater Use & Care Manual - Electric Water Heaters for Manufactured Housing (Mobile Home)

Oct 23, 2026

Use & Care Manual for electric residential water heaters for manufactured housing (mobile home), covering single and double element models with side or top water connections in 20–52 gallon capacities. Provides installer instructions for proper installation and adjustment, and for owners explains features, operation, safety precautions, care and cleaning, and troubleshooting. Includes electrical and plumbing connection guidance, safety controls, water temperature adjustment warnings, draining and maintenance steps, and sections for service, replacement parts, and wiring diagrams. Printed in USA.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages24

Reading Time1 h 0 min

AccessFree to download

Safety Information

Safety Precautions

Water Temperature Adjustment

Time/Temperature Relationship in Scalds

Installation Instructions

Location

Water Connections

Electrical Connections

Operating Instructions

Safety Controls

Water Temperature

Sentinel Lights, Diagnostics & Wiring Diagram

Care and Cleaning

Draining

Maintenance

Extended Shut-Down

Troubleshooting Tips

Before You Call For Service

Customer Service

Replacement Parts List

If You Need Service

Wiring Diagram

Use & Care Manual With Installation Instructions for the Installer Electric Water Heaters For Manufactured Housing (Mobile Home) ® LISTED 786H Single and Double Element Models Side or Top Water Connections Residential 20–52 Gallon The purpose of this manual is twofold: one, to provide the installer with the basic directions and recommendations for the proper installation and adjustment of the water heater; and two, for the owner– operator, to explain the features, operation, safety precautions, maintenance and troubleshooting of the water heater. This manual also includes a parts list. It is imperative that all persons who are expected to install, operate or adjust this water heater read the instructions carefully so they may understand how to perform these operations. If you do not understand these instructions or any terms within it, seek professional advice. Any questions regarding the operation, maintenance, service or warranty of this water heater should be directed to the seller from whom it was purchased. If additional information is required, refer to the section on “If you need service.” Do not destroy this manual. Please read carefully and keep in a safe place for future reference. ! RinInecdfoiogncatirmizeonatithofoni!s sImypmbortoalnatsSaanfety ! CaThknifos pwnrrotPterocoStpntatoaesiiWcarnrntoing: cause cancer, birth defects or other reproductive harm. Printed in USA AP16886 (06/13) Safety Information Safety Precautions ....... 3, 4 Installation Instructions Location ................. 5 Water Connections ........ 6 Electrical Connections...... 9 Operating Instructions Safety Controls .......... 12 Water Temperature ........13 Sentinel Lights, Diagnostics & Wiring Diagram........ 14,15 Care and Cleaning Draining ................ 16 Maintenance............. 16 Extended Shut-Down ..... 17 Troubleshooting Tips Before You Call For Service .............. 18 Customer Service Replacement Parts List .... 19 If You Need Service .......23 Wiring Diagram......... 24 2 FORYOUR RECORDS \# \# You can find them on a label on the appliance. Staple sales slip or cancelled check here. Proof of the original purchase date is needed to obtain service under the warranty. READ THIS MANUAL Inside you will find many helpful hints on how to use and maintain your water heater properly. Just a little preventive care on your part can save you a great deal of time and money over the life of your water heater. You’ll find many answers to common problems in the Before You Call For Service section. If you review our chart of Troubleshooting Tips first, you may not need to call for service at all. READ THE SAFETY INFORMATION Your safety and the safety of others are very important. There are many important safety messages in this manual and on your appliance. Always read and obey all safety messages. ! This is the safety alert symbol. Recognize this symbol as an indication of Important Safety Information! This symbol alerts you to potential hazards that can kill or hurt you and others. All safety messages will follow the safety alert symbol and either the word “DANGER”,“WARNING”,“CAUTION” or “NOTICE”. These words mean: ! DANGER ! WARNING ! CAUTION Notice: An imminently hazardous situation that will result in death or serious injury. A potentially hazardous situation that could result in death or serious injury and/or damage to property. A potentially hazardous situation that may result in minor or moderate injury. Attention is called to observe a specified procedure or maintain a specific condition. IMPORTANT SAFETY INFORMATION. READ ALL INSTRUCTIONS BEFORE USING WARNING! WATER TEMPERATURE ADJUSTMENT Safety and energy conservation are factors to be considered when selecting the water temperature setting of water heater’s thermostat. Water temperatures above 125°F can cause severe burns or death from scalding. Be sure

FAQs

What is the purpose of this Rheem water heater manual?

It guides installers on proper installation and adjustment, and helps owners understand features, operation, safety precautions, maintenance, and troubleshooting. It also includes a parts list.

Why does the manual warn against setting water temperature above 125°F?

Water temperatures above 125°F can cause severe burns or death from scalding. The manual also notes that children, disabled people, and elderly users are at highest risk.

How should the correct water temperature be selected?

Use the chart that shows time-to-produce a serious burn at different temperatures as a guide. The manual also notes that households with small children or elderly/disabled persons may need a 120°F or lower setting to prevent contact with “HOT” water.

Oct 23, 2026

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