Residen al Hybrid Electric Heat Pump Water Heater Use and Care Guide
•
25
TR
OUBLE
SHOO
TING
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.
Troubleshoo ng & Main-
tenance:
If you are not qualified or are not
comfortable performing any of the
troubleshooting, repair or maintenance
procedures that follow, call the Sears Parts
& Repair Service Center at 1-800-488-1222
for further assistance.
No Hot Water
The most likely reasons for an electric
water heater to produce NO hot water are:
• No power to the water heater (No lights
on the unit are on).
• Unit in Vacation Mode.
• ECO tripped.
• Hot water usage pattern exceeds the
capability of the water heater in current
mode.
• Non-functioning upper temperature
sensor.
• Faulty thermostatic mixing valve.
• Leak in plumbing system.
Follow these steps to diagnose and correct
common electrical problems:
1
Check the electrical power to the
water heater.
No hot water is
o en caused by a problem with
the homes electrical wiring or circuit
breakers. You’ll need a non-contact circuit
tester. Follow these guidlines:
• Locate the water heater’s circuit
breaker and turn it off (or remove the
circuit’s disconnects).
• Locate the electrical junction box
on the side of the water heater and
remove the cover.
• Identify the two power wires. The
power wires are usually black/black or
black/red-the green or copper wire is
the ground wire.
Figure 28 - Use a non-contact circuit tester
to check for electrical power.
• Turn the circuit breaker back on (or
install the disconnects) 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 junction box.
If the water heater is not getting power,
contact a qualified person to have your
homes wiring or circuit breakers checked.
2
Check the upper hea ng
element.
If the water heater is
ge ng electrical power, check to
see if the upper hea ng element is burned
out. If the upper element is burned out,
you’ll have no hot water. To check the
upper element, you’ll need a mul meter
capable of readng resistance.
• Turn the power OFF at the circuit
breaker or remove disconnects.
• Remove the upper access panel.
• Move the insulation to the side to
access the ECO and heating element.
3
Check the top two screws of the
ECO using a non-contact circuit
tester and con
fi
rm that power is
o
ff
( screw terminals 1 and 3 in photo on
next page).
• WIth the electrical power off, remove
the two power wires from the upper
heating element.
Figure 29 - Use a mul meter to check the
resistance of the upper hea ng element.
4
Check the resistance of the
upper hea ng element using a
mul meter.
Measure the
resistance between the two screw
terminals on the upper hea ng element. A
good element will have a resistance
ranging between 5 and 25 Ohms. If the
resistance is:
Outside this range.
Replace the element
(see Replacing the Hea ng Element sec-
on on page 30). On a new water heater, a
burned out
Within this range.
Rea ach the power
wires, making sure the wires are in good
condi on and the connec ons are clean
and ght. Next check the following:
TROUBLESHOOTING
Содержание 153.592500
Страница 35: ......
