Service manual

R-21HT
R-21HV
28
4. Install the fan blade to the shaft of fan motor by pushing
the fan blade with a small, light weight, ball peen hammer
or rubber mallet.
CAUTION:
* Do not hit the fan blade hard when installing because
the bracket may be disfigured.
* Make sure that the fan blade rotates smooth after
installation.
Side View
Rear View
Shaft
Table
Center of
bracket
Gap
Rotor
Bracket
Stator
Groove joint pliers
Coil
Shaft
Axis
Stator
Rotor
These are the positions
that should be pinched
with pliers
* Make sure that the axis of the shaft is not slanted.
5. Install the fan duct to the oven cavity rear plate with the
one (1) screw.
6. Insert the tabs of the capacitor holder to the fan duct.
7. Install the capacitor holder to the oven cavity rear plate
with the one (1) screw.
8. Re-connect the wire leads to the fan motor.
Removal
1. Disconnect the power supply cord and then remove outer
case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Remove the one (1) purse lock L holding the white and
the green wire leads of power supply cord and the wire
leads to the thermal cut-out (oven).
5. Remove the one (1) screw holding the green wire to the
cavity rear plate.
6. Disconnect the white wire lead of the power supply cord
from the main wire harness.
7. Disconnect the black wire lead of the power supply cord
from the fuse holder.
8. Release the power supply cord from the oven cavity rear
plate.
POWER SUPPLY CORD REPLACEMENT
Power
Supply Cord
Moulding
Cord Stopper
Oven Cavity
Rear Plate
Square Hole
9. Now, the power supply cord is free.
Re-install
1. Insert the moulding cord stopper of power supply cord
into the square hole of the oven cavity rear plate,
referring to the Figure C-3b.
2. Install the earth wire lead of power supply cord to the
cavity rear plate with one (1) screw and tighten the screw.
3. Connect the white wire lead of power supply cord to the
main wire harness correctly and black wire lead to the
fuse holder, referring to the Pictorial Diagram.
4. Hold the white and the green wire leads of power supply
cord and the wire leads to the thermal cut-out (oven) with
the one (1) purse lock L, referring to the Figure C-3a.
Figure C-3a. Power Supply Cord Replacement
Screw
Green Wire Lead
Black Wire Lead
Power Supply Cord
Fuse Holder
Oven Cavity
Back Plate
Chassis
Support
Main Wire
Harness
Thermal
Cut-out 
(Oven)
Purse Lock L
White Wire Lead
DOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH REMOVAL
1. Disconnect the power supply cord and then remove
outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Remove the control panel assembly referring to
"CONTROL PANEL ASSEMBLY REMOVAL".
5. Disconnect the leads from all switches.
6. Remove the two (2) screws holding the latch hook to the
Figure C-3b. Power Supply Cord Replacement