Specifications

Taco Bell STeamer TBS-2X & TBS-1X
14
P/N 1010698 Rev. G 06/08
TROUBLESHOOTING
WARNING
-
ment should be performed by qualified service personnel. The unit should be unplugged when servicing,
except when electrical tests are required. Use extreme care during electrical circuit tests. Live circuits will
be exposed. If the troubleshooting steps listed do not solve your machine problem, contact an Authorized
Service Agency for further assistance.
Problem Possible Cause(s) Corrective Action
Unit steams, but
requires 2 or more
cycles to melt cheese.
Generator surface temperature is too
low.
Verify Generator surface temperature to be
380°F–420°F.
Insufficient or excessive calcium
deposits on Generator surface.
Verify Generator surface has a thin calcium
coating for proper steaming. Refer to the
Maintenance section of this manual.
Generator Cover is warped or loose. Verify that the Generator Cover Wing Nut is
tight. If noticable steam excapes around the
Generator Cover, replace the Generator Cover.
Low water pressure. Verify Water Pressure regulator is set to 20–30
psi. Adjust accordingly.
Water Volume Adjustment is set too
low.
Calibrate unit for proper water volume. Refer to
the Maintenance section of this manual.
Generator Steam Ports are restricted. Verify that the Steam Ports are not restricted.
Clean accordingly.
Generator surface is bare. Generator surface must have a thin calcium
coating for proper steaming. Refer to the
Maintenance section of this manual.
Unit heats but does not
steam.
Low or no water pressure in water
line.
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rear of the unit. While holding into an empty
cup, press the white plastic tip. Strong steady
water flow should be noted. If so, re-engage
firmly into the unit. If not present, or low pres-
sure, contact your maintenance person or
plumber.
Solenoid Valve Coil is open. Verify that there are 8-20 Ohms on the coil.
Control Board inoperable or
problematic.
Verify 24 VAC to Solenoid Valve Coil when the
Cycle Start button is pushed.
NOTE: Wires must be left attached to valve
and voltage is only read for a split second.
If there is no voltage, replace the Control Board
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at rear of unit or is damaged.

firmly until a click is heard. Replace if damaged.
Cycle Start button inoperable. Verify continuity when the button is pressed. If
there is no continuity replace the button.
Excessive condensation
in Food Compartment.
Water pressure is too high. Verify Water Pressure Regulator is set to 20–30
psi. Adjust accordingly.
Water Volume Adjustment is set too
high.
Calibrate unit for proper water volume. Refer to
the Maintenance section of this manual.