Bradford White ES-2400-1-S-10, ES-3000-1-S-10, ES-3000-3-S-10, ES-3500-1-S-10, ES-3500-4-S-10 Troubleshooting Manual

TROUBLESHOOTING GUIDE

ELECTRIC INSTANTANEOUS TANKLESS WATER HEATER

ES-2400-1-S-10 120V
ES-3000-1-S-10 120V
ES-3500-1-S-10 120V
ES-3000-3-S-10 208V
ES-4100-2-S-10 208V
ES-3500-4-S-10 240V
ES-4100-5-S-10 277V
ES-3000-5-S-10 277V

All information necessary to troubleshoot

this water heating unit is contained in this fully

illustrated guide. If problems still exist after

reading and carrying out the instructions in

this

m

anual, contact Technical Service at the

toll free number below for assistance.

PH

ONE TOLL FREE

1-800-334-3393

Single Point
“ES”- MODELS

238-43141-00 Rev. 5/02

GENERAL

UP

UP

This is how your “ES” model should look when mounted correctly on the wall.

other mounting configuration will prevent the unit from operating properly.

Any
If the unit is mounted correctly and still does not produce hot water, look to see if the

indicator light illuminates when the hot water faucet is fully opened.
If the indicator light illuminates, turn to page 6.

If the indicator light does not illuminate, turn to page 3.
Other possible situations turn to page 7.

Water outlet/inlet (Top)

Water outlet/inlet (Top)

Out In

U.L. rating label

Indicator
light

light
Serial number

Model # = Order Ref. #

Model # = Order Ref. #

2

The indicator light does not illuminate (When the hot water faucet is fully

opened):

STEP ONE:

Is the circuit breaker switched ON at the main circuit breaker panel?
YES Go to Step two
NO Run water at the hot water faucet, for a couple

of minutes, before
breaker. Then turn on the circuit breaker at the
main circuit breaker panel.

STEP TWO:

The unit will not heat unless sufficient water is flowing through the unit.
The minimum acceptable flow rate is about 0.5 gallons per minute (1/2
gpm). Measure the flow rate using the following procedure:

Fill a 1-gallon “milk” container and, using only water from the hot water
outlet, record the time (In seconds) required to fill. To calculate flow
rate, divide the number of gallons the container holds (In this case one
gallon) by the time required to fill.

e.g. If it takes 87 seconds to fill the container the flow rate would be:
Flow rate(gpm) = v/t x 60 = (1 gallon/87 sec.) x (60 sec./1 min.) = .69 gpm

Now, run the water with the faucet open fully. If the indicator light still does not
illuminate, then proceed to STEP THREE.

turning on the circuit

Aerator - Fits on the orifice of the faucet.

Male/female threaded adapter on top of
aerator.

Flow restrictor - (may be removed to
increase flow)

3