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Commercial Electric Water Heaters
Manual 238-51544-00A REV 08/18
Residential & Light Duty
SERVICE
MANUAL
Troubleshooting Guide
and Instructions for Service
(To be performed ONLY by
qualified service providers)
Models Covered
by This Manual:
Residential:
RE1 & RE3 Upright Models.
RE1 & RE2 Lowboy Models.
RE1 Utility Models.
RE1 Wall Hung Models.
Light Duty:
LE Upright Models.
LE Utility Models.
LE Lowboy.
LE Wall Hung.
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Table of Contents
Related Manuals for Bradford White ElectriFLEX LD LE16U3-1NAL
Summarization of Contents
Introduction to Water Heater Service
Tools Required for Water Heater Service
List of essential tools needed for water heater maintenance and repair procedures.
General Information for Electric Water Heaters
Commonly Used Formulas for Electric Water Heaters
Key electrical formulas for calculating wattage, amperage, and resistance.
Electric Water Heater Service Wire Configurations
Diagrams illustrating typical single and three-phase electrical service wiring setups.
Surface Mounted Thermostat Operation and Mounting
Details on how surface-mounted thermostats sense temperature and their proper mounting to the tank.
Direct Immersion Screw-in Heating Element Description
Description and diagram of the screw-in type heating element used in water heaters.
Sequence of Operation for Electric Water Heaters
Single Element Water Heater Sequence of Operation
Step-by-step explanation of how a single heating element water heater functions.
Double Element Heater Operation Modes Explained
Explanation of non-simultaneous and simultaneous operating modes for double element heaters.
Single Phase Non-Simultaneous Double Element Operation
Detailed sequence of operation for single-phase, double-element, non-simultaneous heating.
4-Wire Single Phase Simultaneous Double Element Operation
Sequence of operation for 4-wire, single-phase, simultaneous double element heaters.
3 Phase Non-Simultaneous Double Element Operation
Sequence of operation for three-phase, double-element, non-simultaneous heating.
3 Phase Simultaneous Double Element Operation
Sequence of operation for three-phase, double-element, simultaneous heating.
Off-Peak Single Phase Non-Simultaneous Double Element Operation
Operation sequence for off-peak usage of single-phase, non-simultaneous double element heaters.
Troubleshooting Common Water Heater Issues
Common Heating Element Failures and Causes
Identifies common failures like dry firing, grounding, and sediment buildup.
Quick Troubleshooting Steps for No Hot Water
A quick guide to diagnosing and resolving no hot water issues based on symptoms.
Service Procedure RE-I: Voltage and ECO Testing
Line Voltage and High Limit (ECO) Testing Procedure
Steps to test line voltage supply and the high limit (ECO) switch functionality.
Service Procedure RE-II: Heating Element Testing
Heating Element Testing for Open Circuits or Grounding
Procedures for testing heating elements for continuity and short circuits to ground.
Service Procedure RE-III: Residential Thermostat Testing
Residential Thermostat Testing Guide
Comprehensive guide for testing thermostats in residential water heaters.
Thermostat Testing for Single/4-Wire Simultaneous Operation
Specific thermostat testing steps for single element or 4-wire simultaneous double element setups.
Thermostat Testing for Non-Simultaneous Single Phase Operation
Testing procedures for thermostats in double-element, non-simultaneous, single-phase heaters.
Non-Simultaneous Single Phase Operation Thermostat Testing Continued
Continuation of thermostat testing for non-simultaneous single-phase double element heaters.
Thermostat Testing for 3-Phase Non-Simultaneous Operation
Testing procedures for thermostats in double-element, non-simultaneous, three-phase heaters.
3-Phase Non-Simultaneous Operation Thermostat Testing Continued
Continuation of thermostat testing for non-simultaneous three-phase double element heaters.
Thermostat Testing for 3-Phase Simultaneous Operation
Testing procedures for thermostats in double-element, simultaneous, three-phase heaters.
3-Phase Simultaneous Operation Thermostat Testing Continued
Continuation of thermostat testing for simultaneous three-phase double element heaters.
Thermostat Testing for Off-Peak Non-Simultaneous Single Phase
Testing thermostats for off-peak single-phase, non-simultaneous double element heaters.
Off-Peak Non-Simultaneous Single Phase Testing Continued
Continuation of thermostat testing for off-peak, non-simultaneous single-phase double element heaters.
Service Procedure RE-IV: Light Duty Commercial Thermostat Testing
Light Duty Commercial Thermostat Testing Guide
Procedures for testing thermostats in light-duty commercial water heaters.
Light Duty Commercial: Non-Simultaneous Single Phase Operation
Thermostat testing for light-duty commercial, non-simultaneous, single-phase heaters.
Light Duty Commercial: Non-Simultaneous Single Phase Operation Continued
Continuation of thermostat testing for light-duty commercial, non-simultaneous, single-phase heaters.
Light Duty Commercial: Simultaneous Single Phase Operation Testing
Thermostat testing for light-duty commercial, simultaneous, single-phase heaters.
Light Duty Commercial: Simultaneous Single Phase Operation Testing Continued
Continuation of thermostat testing for light-duty commercial, simultaneous, single-phase heaters.
Light Duty Commercial: Non-Simultaneous 3-Phase Operation Testing
Thermostat testing for light-duty commercial, non-simultaneous, three-phase heaters.
Light Duty Commercial: Non-Simultaneous 3-Phase Operation Testing Continued
Continuation of thermostat testing for light-duty commercial, non-simultaneous, three-phase heaters.
Light Duty Commercial: Simultaneous 3-Phase Operation Testing
Thermostat testing for light-duty commercial, simultaneous, three-phase heaters.
Light Duty Commercial: Simultaneous 3-Phase Operation Testing Continued
Continuation of thermostat testing for light-duty commercial, simultaneous, three-phase heaters.
Service Procedure RE-V: Thermostat Removal and Replacement
Thermostat Removal and Replacement Guide
Step-by-step instructions for safely removing and replacing water heater thermostats.
Service Procedure RE-VI: Heating Element Removal and Replacement
Heating Element Removal and Replacement Guide
Detailed procedure for removing and installing water heater heating elements.
Service Procedure RE-VII: Dip Tube and Anode Inspection and Replacement
Dip Tube and Anode Inspection and Replacement
Instructions for inspecting and replacing the dip tube and anode rod.
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