Energy Cut Out (Eco) - State Water Heaters 120 Series Service Handbook

fault messages
displayed message/condition/indicates

Energy Cut out (ECo)

The Control System has detected water temperature in
the water heater storage tank above 201°F (94°C). Tank
temperature must cool to 140°F (60°C) before the fault
message (lock out) can be reset.
Energy Cut Out (ECO)
Fault occurred 2 mins ago
Tank temperature is excessive.
The water heater has been
disabled.
Call a service professional:
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Important Service Reminder:
When performing any troubleshooting steps outlined in
this manual always consider the wiring and connectors
between components. Perform a close visual inspection
of all wiring and connectors to a given component before
replacement.
60
BACK ADVANCED
Servicing should only be performed by a Qualified Service Agent
possible causes - checK/repair
• Be extremely careful - record temperature from a
nearby hot water fixture.
• If recorded temperature is above 180°F - shut off
power and gas to the water heater and call the toll
free support phone number on the back cover of
this manual for further assistance. DO NOT lEAvE
THE WATER HEATER IN OPERATION UNDER ANy
CIRCuMSTAnCES.
• If recorded temperature from above is below 180°-
cycle power to reset the Control System. Watch the
water heater through several heating cycles. If tank
temperature climbs above the current operating Set
Point by more than 5° F (2.8° C) - shut off power
and gas to the water heater and call the toll free
support phone number on the back cover of this
manual for further assistance. DO NOT lEAvE THE
WATER HEATER IN OPERATION UNDER ANy
CIRCuMSTAnCES.
• Check Temperature Probe plug and socket
connection at CCB's J7 Socket (page 41). Perform a
close visual inspection of the pins inside the plug
and socket - ensure plugs and sockets are mating
properly and providing good contact.
• Check all wiring between the Temperature Probe and
the J7 Socket on the CCB. Repair/replace anything
worn or damaged.
• Perform the ECo Continuity Test on page 36. If
there is no continuity between these two wire
ends in the Temperature Probe plug end and the
tank temperature is not excessive - replace the
Temperature Probe.
• Call the toll free support phone number on the back
cover of this manual for further assistance if the
problem has not been corrected after performing the
procedures outlined here.