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Rapid toasteR VCt-250
6
P/N 00837 Rev. L 03/07
McDonald’s
tRoUbleshootiNG
WaRNiNG
To avoid possible personal injury and/or damage to the unit, inspection, test and repair of electrical equipment
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.
problem
possible Cause
Corrective action
No Display
No light on Power Switch
Unit not plugged in.
Connect toaster to proper receptacle.
hi-Limit tripped.
Reset hi-Limit.
Circit Breaker tripped
Reset Circuit Breaker.
Power Cord and/or plug are damaged.
Contact your maintenance person or
Authorized Service Agency.
Inoperable Rocker Switch (power On/Off).
Temperature display flashes
“Ph”
Conveyor Covers are not fully engaging the
Conveyor Safety Interlock Switches
Reposition the Conveyor Covers so that they
fully engage the Conveyor Safety Interlock
Switches.
Loose wiring between the phase control and
A/C isolator boards.
Contact your maintenance person or
Authorized Service Agency.
Temperature display flashes
“PO”
voltatge to the unit is below 90 volts.
Restart the unit. If the display shows “PO”
again, check the power cord and plug recep-
tacle for damage.
Reset Circuit Breaker located at store’s
power panel.
Contact your maintenance person or
Authorized Service Agency.
Temperature display reads “LO”
Platen temperature is below 420° F (26° C). Allow thirty minutes for warmup and recheck
display.
Contact your maintenance person or
Authorized Service Agency.
Temperature display flashes “hI”
at cold start.
Platen Thermocouple is disconnected or
open.
Re-attach or replace Platen Thermocouple.
Inoperable Control Board.
Contact your maintenance person or
Authorized Service Agency.
Temperature display flashes “hI”
and “LO” at cold startup.
Auxiliary Thermocouple is disconnected or
open.
After preheat time, display flash-
es “hI” and “USE.”
Temperature display flashes”hI”
and “USE” after unit has been
preheated (Never flashed hI &
LO at cold startup).
Auxiliary circuit overheating due to auxiliary
solid state relay shorted closed.
Display reads “ChEC.”
Ambient temperature in control compartment
too high.
Turn toaster off and allow control compart-
ment to cool down to 40 F (60 C) and
restart toaster. Be sure cooling fan is operat-
ing and nothing is blocking the flow of cool-
ing air to the bottom of the toaster.
Axial cooling fan is inoperable.
Belt wrap stop turning, but con-
veyor chain continues to turn.
Underside of Belt and Conveyor Chain have
excessive buildup.
Clean Belt Wrap and Conveyor Belt Chain as
per current MRC Card (TS 09B-).
Belt Wraps are tearing in the
center.
Missing or Bent Roller Tensioners.
Replace or adjust the bent Roller Tensioner
- measured to 3/6” (2. cm) or the height
of a U.S. Nickel coin from the bottom of the
roller to the inner cover.