Bradford White RE340S6-1NCWW User Manual

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Manual 238-51544-00A REV 04/15
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.
Residential & Light Duty
Commercial Electric Water Heaters

Bradford White RE340S6-1NCWW Specifications

General

Type	Electric
Capacity	40 gallons
Energy Factor	0.93
Voltage	240V
Fuel Type	Electric
Warranty	6 years
Wattage	4500 watts
Recovery Rate	21 gallons per hour
Height	48.5 in
Diameter	21 in

Summary

Troubleshooting

Common Heating Element Failures

Identifies common causes of heating element failure like dry firing, grounding, and sediment buildup.

Quick Step Plan to Hot Water

Provides a rapid troubleshooting guide for common water heater issues, linking symptoms to probable causes.

SERVICE PROCEDURE RE-I: Line Voltage & High Limit (ECO) Testing

Line Voltage Testing

Procedure to test incoming line voltage to the upper thermostat to ensure proper power supply.

High Limit (ECO) Testing

Tests the Energy Cut-Out (ECO) function to verify the high limit safety switch operation.

SERVICE PROCEDURE RE-II: Heating Element Testing

Testing For Open Or Burned Out Element

Details how to test heating elements for open circuits using an ohmmeter.

Testing For Heating Element Short Circuit To Ground

Explains testing heating elements for short circuits to ground using an ohmmeter.

SERVICE PROCEDURE RE-III: Residential Thermostat Testing

Single Element Operation or Double Element, 4 Wire, Simultaneous, Single Phase Operation

Tests thermostat operation for single element and double element, 4-wire simultaneous single-phase systems.

Water Temperature In Tank Is Above Thermostat Setting

Tank Does Not Deliver Enough Hot Water

Double Element, Non-Simultaneous, Single Phase, Off Peak Operation

SERVICE PROCEDURE RE-IV: Light Duty Commercial Thermostat Testing

Double Element, Non-Simultaneous, Single Phase Operation

Double Element, Simultaneous, Single Phase Operation

Double Element, Non-Simultaneous, Three Phase Operation

Double Element, Simultaneous, Three Phase Operation

SERVICE PROCEDURE RE-V: Thermostat Removal and Replacement

Thermostat Removal

Thermostat Replacement

SERVICE PROCEDURE RE-VI: Heating Element Removal and Replacement

Heating Element Removal

Procedure for safely draining the water heater and removing a heating element.

Heating Element Replacement

Instructions for installing a new heating element, including gasket and connection details.