Lincoln FUSION TOASTER 2040 - Manual (Page 10)

Fusion Toaster Series Service Manual 10
TROUBLESHOOTING GUIDE
SYMPTOM
POSSIBLE CAUSE EVALUATION
Cooling Fan will not run Incoming power supply Check power cord to ensure it is
plugged into receptacle. Check
circuit breakers. Reset if required.
Call power company if needed.
Fuse has opened Check and replace if necessary.
Oven will not heat Incoming power supply Check power cord to ensure it is
plugged into receptacle. Check
circuit breakers. Reset if required.
Call power company if needed.
Fuse has opened Check and replace if necessary.
Hi-limit thermostat Check for voltage on both sides of
thermostat. Terminals are normally
closed. If open, wait for oven to cool
down. Once oven has cooled,
contacts should go back to normally
closed position. If thermostat does
not return to normally closed or will
not hold, replace.
Control Transformer Check for main power to the primary
side of the control transformer. If no
voltage is present, trace wiring back
to main power switch. Check for
secondary voltage off of the
transformer 16~26VAC. If there is
no secondary voltage off of
transformer then replace
transformer.
Switch Pad Check that the switch pad is plugged
into the controller. Ensure all
electrical connections are tight.
Oven Control Check for supply voltage to control
(16~26 VAC). If no voltage is
present, trace wiring back to
transformer. If control voltage is
present, check display to see that
information is displayed on the
screen. If nothing is displayed on
screen, replace controller. If there is
a read-out on the controller, set the
temperature to the maximum setting
(see operations manual). With the
control at the maximum setting,
check for output voltage (5 VDC) to
the solid state relays. If there is a 5
VDC signal to the solid state relays,
proceed to “solid state relays” for
more troubleshooting information. If