Double Element, Non-Simultaneous, Single Phase. Bradford-White Corp RE130L6, LD-65R3-3, RE120L6, LD-50S3-3, RE230LN6, LD-120R3-3, RE230L6, LD-80R3-3, RE240LN6, LE130L3-3

Double Element, Simultaneous, Single Phase

Operation.

Water In Tank Is Cold Or Not Enough Hot

Water With Power ON.

3. Turn power “ON” to water heater.

4. Set multi-meter to “Volts AC”

Recheck upper ECO

is okay, replace upper thermostat.

6. Check across upper element terminals

(see illustration 36).

Illustration 35

SERVICE PROCEDURE RE-IV

Light Duty Commercial

Thermostat Testing

WARNING

High voltage exposure. Use caution to avoid personal injury during this procedure.

Illustration 36

B) Rated voltage IS present,

proceed to next step.

WARNING

Be sure thermostats are reset to their original temperature settings as found prior to thermostat testing

Illustration 37

Page 27

Illustration 38

27

28

Double Element, Simultaneous, Single Phase

Operation (continued)

Water Temperature In Tank Is Above Thermostat

Setting.

1. This procedure assumes line voltage, ECO and

elements are in working order.

2. Adjust upper and lower thermostat to the lowest setting.

3. Turn power “ON” to water heater.

4. Set multi-meter to “Volts AC”

5. Check across terminals L4 and T2 of

upper thermostat (see illustration 39).

A) Rated voltage IS present,

replace upper thermostat.

B) Rated voltage NOT present,

upper thermostat is okay. Go to step 6 below.

C) lower than rated voltage IS present,

recheck for grounded upper element

see page 15.

6. Check across terminal L3 of upper thermostat and

T2 of lower thermostat (see illustration 40).

A) Rated voltage IS present,

replace lower thermostat.

B) Rated voltage NOT present,

lower thermostat is okay.

C) lower than rated voltage IS present,

recheck for grounded lower element

see page 15.

SERVICE PROCEDURE RE-IV

Light Duty Commercial

Thermostat Testing

WARNING

High voltage exposure. Use caution to avoid personal injury during this procedure.

Illustration 39

Page 28

Illustration 40