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Universal Rapid Toaster
340-TCE
SYMPTOM
POSSIBLE CAUSE
Buns are not toasted
Main PCB is failing.
or product is not dark
enough (continued).
Faulty temperature probe.
Buns are too dark of
Toaster settings are
product is burnt.
incorrect.
Faulty temperature probe.
Relay is shorted.
Main PCB is failing.
Gates are stuck open
Rocker plate is stuck.
or closed.
Solenoid failed.
Main PCB is failing.
Compression walls
Wall position set incorrectly.
do not open wide
enough.
No alarm tone.
Volume level is turned down. Ask store to verify that volume level is turned up.
Faulty speaker assembly.
Printed in USA 3/06 © 2006
Troubleshooting (continued)
CHECK
Measure the voltage output at the relay connection at
the main PCB. When the unit is not calling for heat,
there should be no output voltage. When the unit is
calling for heat, the output voltage is 5 VDC.
Measure the resistance reading of the RTD. At room
temperature, the RTD should read approximately
1000 Ω ±2%
1. Check heater temperature.
2. Change compression settings. If both crowns and
heels are dark, decrease compression setting
(the higher the compression setting, the greater
the compression).
3. If only one side is dark, adjust the compression
wall by removing the cotter pin and removing
washers to move the wall to the appropriate
position. Replace cotter pin.
Measure the resistance reading of the RTD. At room
temperature, the RTD should read approximately
1000 Ω ±2%.
Remove side panel to view relay. When the unit is not
calling for heat, the LED on the relay should not be
lit. Measure the voltage across the output terminals
of the relay. When the LED is not lit, the voltage
should be approximately 208V. When the LED is lit,
the voltage should be nominal.
Measure the voltage output at the relay connection at
the main PCB. When the unit is not calling for heat,
there should be no output voltage. When the unit is
calling for heat, the output voltage is 5 VDC.
Carefully remove side panel and inspect rocker plate. 1. Reposition rocker plate.
Take resistance reading of the solenoid. The
solenoid should have a resistance reading of more
than 5 Ω.
Measure voltage output to the solenoid from the
PCB. When solenoid is actuated, the voltage should
be between 24 – 30 VDC.
In programming mode, change the RESPOS setting
to a higher number to increase the distance between
the walls.
14
REMEDY
Replace main PCB.
Replace temperature probe.
Replace temperature probe.
Replace relay.
Replace main PCB.
2. Apply lubricant to plate.
Replace solenoid.
Replace main PCB.
Replace speaker.
340-506-EN
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