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Technical Literature Department 45 of 52 Ashland City, TN © 2008
Servicing should only be performed by a Qualified Service Agent
ULTRA HIGH EFFICIENCY POWER VENT/POWER DIRECT VENT - SERVICE MANUAL
FAULT MESSAGES (CONT)
DISPLAYED MESSAGE
CONDITION/INDICATES
CHECK/REPAIR
“Flame Detect Error”
The control system has detected flame sensing
current out of sequence.
• The burner has not shut down properly. Check
gas valve for 100% closure. Check for flame
candling after the heating cycle has ended
through the Burner View Port, see page 11.
• If burner flame is candling after the heating
cycle has ended - replace gas valve assembly,
see gas valve removal procedure page 15.
• Call the technical support phone number shown
on the water heater labeling for further assis-
tance if the problem has not been corrected
after performing the procedures outlined here.
“Energy Cut Out (ECO)”
The control system has detected water temperature
in the tank above 190°F. Tank temperature must cool
to 140°F before the fault message (lock out) can be
reset. Cycle power off (20 seconds) and on again to
reset.
• 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 technical support phone number shown on
the water heater labeling for further assistance.
DO NOT LEAVE THE WATER HEATER IN
OPERATION.
• If recorded temperature from above is well
below 180°- cycle power to reset the control
system. Watch the water heater through several
heating cycles. If tank temperature climbs to
excessively high temperatures - shut off power
and gas to the water heater and call the techni-
cal support phone number shown on the water
heater labeling for further assistance. DO NOT
LEAVE THE WATER HEATER IN OPERATION.
• Check Temperature Probe plug and socket con-
nection at CCB’s J7 Socket (page 36). Perform
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.
• With the J7 plug disconnected from the CCB
(page 36) check for continuity between the two
red wires in the plug end (pins 1 & 4) with an
ohm meter. If there is no continuity between
these two wires and the tank temperature is not
excessive - replace the Temperature Probe.