Installation Guide

24 • Residen al Electric Water Heater Use and Care Guide
TROUBLESHOOTING
WARNING! Working near an
energized circuit can result in severe
injury or death from electrical shock.
WARNING! When you are fi nished,
be sure all covers are secured to reduce
the risk of fi re and electric shock.
No Hot Water
The most likely reasons for an electric
water heater to produce NO hot water
are:
• No electric power—a common
problem with new installa ons
• Burned out upper element
• Tripped Energy Cut Off (red bu on
on electronic thermostat)
• The water heater’s inlet and outlet
connec ons are reversed (usually
only in new installa ons)
• Broken electronic thermostat (or wiring)
• A leak in the hot water side of the
plumbing system that exceeds the
water heater’s hea ng capacity and
makes it appear that the water heater
is producing li le to no hot water
Follow these steps to diagnose and
correct common electrical problems:
1
Check the electric power to
the water heater. No hot
water is o en caused by a
problem with the home’s electrical
wiring or circuit breakers. You’ll need a
non-contact circuit tester. Follow these
guidelines:
• Locate the water heater’s circuit
breaker and turn it off (or remove the
circuit’s fuses).
• Locate the electrical junc on box on
top of the water heater and remove
the cover.
• Iden fy the two power wires. The
power wires are connected to the
black/red wires from the water
heater—the green or copper wire is
the ground wire.
• Turn the circuit breaker back on
(or install the fuses) and check the
power on both incoming power wires
using a non-contact circuit tester.
• Turn the power off and replace the
cover on the electrical junc on box.
If the water heater is not ge ng
power, contact a qualifi ed person to
have your home’s wiring or circuit
breakers checked.
2
Check/Reset Energy Cut Off
(ECO) Bu on.
Figure 28 - Energy Cut Off (ECO) button
The Energy Cut Off (ECO) shuts off
power to the water heater’s elements
if the temperature of the water in
the tank gets too hot. If the ECO has
tripped, you’ll have no hot water. A
tripped ECO can usually be reset, but
you should have a qualifi ed person
inves gate the cause of the overheat-
ing and repair the problem. Do not
turn the power back on un l the cause
of the overhea ng has been iden fi ed
and repaired.
To check the Energy Cut Off (ECO)
• Turn off the power to the water
heater.
WARNING! Working near an
energized circuit can result in severe
injury or death from electrical shock.
Check power wires in the electrical
junc on box with a non-contact circuit
tester to make sure power is off .
• Press the red ECO reset bu on (see
photo above).
• The ECO was tripped if you hear a
click when it is reset. In most cases,
a tripped ECO indicates that the tank
overheated due to a problem with
one of the elements or electronic
thermostat—have a qualifi ed person
check the upper and lower elements
and electronic thermostat and re-
place if necessary.
• The ECO was not tripped if you didn’t
hear a click. In that case, the elec-
tronic thermostat should be checked
by a qualifi ed person.
• Replace the insula on and the upper
access panel.
WARNING! Be sure all covers are
secured to reduce the risk of fi re and
electric shock.
Insuffi cient Hot Water
or Slow Hot Water
Recovery
WARNING! Because of the in-
creased risk from scalding, if you set
the water heater’s thermostat
higher than 120°F, Thermosta c
Mixing Valves at each point-of-use are
par cularly important (see page 4).
If the hot water is simply not warm
enough, there are several possible
causes:
TROUBLESHOOTING