Troubleshooting Guide - Hatco THERMO-FINISHER TFWM Series Installation And Operating Manual

WARNING
This unit must be serviced by qualified personnel only.
Service by unqualified personnel may lead to electric
shock or burn.
Symptom
Unit is not working at all.
Unit is turned on but there is no
heat.
Heat inadequate.
Excessive heat.
Form No. TFWMM-0810
Probable Cause
Unit not turned on.
Unit not plugged in.
Circuit breaker tripped.
POWER ON/OFF (I/0) switch is
defective.
Voltage supply incorrect.
No plate/tray on adjustable shelf or
plate/tray too light.
No power to unit.
POWER ON/OFF switch
defective.
HEAT CONTROL infinite switch(es)
defective.
Ribbon heating element(s) defective.
HEAT CONTROL knobs set too low.
HEAT CONTROL infinite switch(es)
defective.
Ribbon heating element(s) defective.
Voltage supply too low.
HEAT CONTROL knobs set too high.
HEAT CONTROL infinite switch(es)
defective.
Ribbon heating element(s) defective.
Voltage supply too high.
11

TROUBLESHOOTING GUIDE

WARNING
ELECTRIC SHOCK HAzARD: Turn power switch OFF,
unplug power cord/turn off power at circuit breaker, and
allow unit to cool before performing any maintenance or
cleaning.
Corrective Action
Move POWER ON/OFF (I/0) switch to the ON (I)
position.
Plug unit into proper power supply.
Reset circuit breaker. If circuit breaker continues
to trip, Contact Authorized Service Agent or Hatco
for assistance.
Contact Authorized Service Agent or Hatco for
assistance.
Check power supply to unit, making sure it
matches rating on the unit. If power supply is
incorrect, change to match rating on unit.
Place plate/tray on adjustable shelf or use
heavier plate/tray to activate ribbon heating
element.
Make sure unit is plugged in and/or check circuit
breaker and reset as necessary.
is Contact Authorized Service Agent or Hatco for
assistance.
Contact Authorized Service Agent or Hatco for
assistance.
Contact Authorized Service Agent or Hatco for
assistance.
Turn the HEAT CONTROL knobs to a higher
setting.
Contact Authorized Service Agent or Hatco for
assistance.
Contact Authorized Service Agent or Hatco for
assistance.
Check power supply to unit, making sure it
matches rating on the unit. If power supply is
incorrect, change to match rating on unit.
Turn the HEAT CONTROL knobs to a lower
setting.
Contact Authorized Service Agent or Hatco for
assistance.
Contact Authorized Service Agent or Hatco for
assistance.
Check power supply to unit, making sure it
matches rating on unit. If power supply is
incorrect, change to match rating.