Fisher Scientific Isotemp 800 Series, Руководство пользователя

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Replacing the Heater
To replace a defective heater, proceed as follows, refer to
Fig. 2:
1. Disconnect power cord from the electrical outlet.
2. Remove the two screws that secure the heater
cover. Lift and slide it forward. It may be nec-
essary to use a flat-blade screwdriver to assist
in lifting the cover upward. Set heater cover
aside. Remove the two nuts and shake proof
washers securing the heater leads, then pull the
lead terminals off the heater studs.
3. Remove the two screws securing heater to cabi-
net. Slide heater forward to disengage back
heater clips, lift back of heater up, then slide
heater back and lift out.
4. Install replacement heater and reassemble oven
by generally reversing the steps above.
Replacing the Cooling Fan
To replace a defective cooling fan, proceed as follows:
1. Complete the procedures discussed in
Accessing the Electronics Compartment , noting
all caution statements.
2. Remove the two fan power wires from push-on
terminals located on fan housing.
3. Remove the three mounting screws holding the
fan in place.
4. Install replacement fan and reassemble oven by
generally reversing the steps above.
26
S
ERVICE
Warning
Service procedures requiring access
to the electronics compartment involve
exposure to line voltage and should be
done only by qualified service person-
nel.
Disconnect oven from power
source before attempting repairs.
Warning
Allow oven to cool to ambient tem-
perature before attempting repair.
Note
When installing the replacement fan,
make certain air flow arrow molded
into fan housing points
into the oven
chassis.