STEAM TEMP LO
Warning
Are both
conditions
present?
Yes
Run several
drinks. Monitor the
steam tank
temperature.
Watch for STEAM
TEMP LO error.
Tubing
OK?
Yes
END PROCESS
No
Wiring/pins/
housing
OK?
Yes
Using an Ohm
meter. Verify 20
ohms across the
steam element.
Voltages
present?
Yes
No
If error persists, verify
steam level probes are
functioning correctly.
Repair/replace
damaged or faulty
wiring. Retest for
failure.
Fuses
OK?
No
No
Yes
No
No
Remove rear cover. Verify steam
relays are working by measuring
208Vac across terminal 1 of the top
two relays on rear grinder plate. Verify
24Vdc present across terminals 3 and
4 of the top two relays.
Limit
switch
OK?
Replace analog
board.
PN 2612-033
Or replace CPU
assembly. Retest
for failure.
Yes
Check transducer
harness, pins, and
connector housings
for shorts, opens, bad
crimps, and debris.
No
Yes
Inspect tubing
and fittings for
transducer for
blockage.
END PROCESS
Open top front panel door. Press the
service switch into the SERVICE
position. Verify steam pressure
gauge is between 0-1psi on the black
scale of gauge. Navigate to CHECK
TEMPERATURES > STEAM. Verify
the steam temperature is below
232F.
Replace,
clean, or repair
tubing. Retest
for failure.
Check for proper
voltages, 9Vdc red
wire and -3Vdc
black wire to
transducer on
harness.
Yes
Voltages
OK?
Inspect steam tank
for debris, scale,
etc. Replace
transducer if tank
is judged OK.
Retest for failure.
No
Verify 12V, N12V,
and VCC are
present at DC board
with CPU removed
from enclosure.
Voltages
present?
Check JP9 plug pins,
housings, and crimps
for faults. Check AC
voltages are present.
No
Yes
Voltages
present?
Yes
Yes
Replace DC board
and/or JP9 cable.
Retest for failure.
Check input
voltage to
transformer.
Replace as
required.
No
END PROCESS
Replace blown
fuse.
PN 1342-010
Heating
element
OK?
Replace if
shorted or open.
PN 2650-019
Voltages
present?
Power unit down.
Check for blown fuses
on the rear grinder
plate.
Verify AC
voltage across
terminal 2 of the
top two relays.
Check voltage
source. For single-
phase machines,
replace AC drawer
as required.
PN 2630-049
For international
machines, contact
Concordia
Beverage Systems
for assistance.
1-800-778-0990
No
Check limit switch.
Switch should be
shorted unless tank is
above 261F. Reset limit
switch. Retest for
failure.
Replace limit switch.
PN 1311-022
Inspect harness for
shorts and opens.
Verify housings correct.
Replace AC control
board or AC drawer.
Steam
level probes
clean?
Call Concordia
Beverage Systems for
assistance.
1-800-778-0990
Yes
Clean or replace
level probes.
Retest for failure,
No
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