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R-890SLM

CAUTION: •  Do not hit the fan blade when installing because 

 

   the bracket may be deformed.

 

 •  Make sure that the fan blade rotates smoothly 

 

   after installation.

 

•   Make sure that the axis of the shaft is not slanted.

3.   Insert the tabs of the capacitor holder to the fan duct.
4.   Install the fan duct to the oven cavity back plate with the one 

 

(1) screw.

5.   Install the capacitor holder to the oven cavity back plate with 

 

the one (1) screw.

6.   Reinstall the chassis support to the oven cavity with the one 

 

(1) screw.

7.   Refit the one(1) screw to secure the chassis support to the 

 

magnetron.

8.   Install the noise filter to the fan duct and the chassis support 

 

with the one (1) screw.

9.   Reconnect the wire leads to the fan motor.

Gap

Rotor

Bracket

Stator

Groove joint pliers

Coil

Shaft

Axis

Stator

Rotor

These are the positions

that should be pinched

with pliers.

Shaft

Table

Center of

bracket

Disconnect the oven from the power supply.
Remove the turntable from the oven cavity.
Turn the oven over.
Cut the four (4) bridges holding the turntable motor cover to 

the base plate with cutting pliers as shown in Figure C-1(a).

CAUTION: DO NOT DROP THE TURNTABLE MOTOR COVER 

INTO THE OVEN AFTER CUTTING THE BRIDGES. 

BECAUSE IT WILL DAMAGE THE WIRE LEADS OF 

THE MOTOR AND IT IS DIFFICULT TO REMOVE 

IT OUT OF THE OVEN.

5.   Remove the turntable motor cover from the base plate.
6.   Disconnect the wire leads from the turntable motor.
7.   Remove the one (1) screw holding the turntable motor to the 

turntable motor angle.

Cutting pliers

Bridges

Bridges

Turntable motor

cover

Figure C-1(a) Turntable Motor Cover Removal

1.   CARRY OUT 3D CHECKS.
2.   Remove the two (2) screws holding the back plate to oven 

cavity.

3.   Disconnect the wire leads from the convection motor.
4.   Remove the two (2) screws holding the rear heat cover to 

the oven cavity from out-side.

5.   Remove the four (4) screws holding the convection fan duct 

to the oven cavity.

6.   Now, the convection fan duct assembly is free.
7.   Remove the one (1) nut holding the convection fan, washers, 

pipe and the cooling fan to the convection motor shaft.

1.
2.
3.
4.

8.   Bend the turntable motor retaining tab back to release the motor.
9.   Remove the turntable motor from the turntable motor angle.
10. Now, the turntable motor is free.

1.   Remove the any sharp edges on the turntable motor cover 

and the base plate with the cutting pliers.

2.   Reinstall turntable motor by locating shaft onto turntable mo-

tor shaft to the turntable motor angle with the one (1) screw.

3.   Bend the turntable motor retaining tab forward to secure the motor.
4.   Reconnect the wire leads to the turntable motor.
5.   Insert the two (2) tabs of the turntable motor cover into the 

slits of the base plate as shown in Figure C-1(b).

6.   Reinstall the turntable motor cover to the base plate with the 

screw (XHTS740P08RV0) as shown in Figure C-1(b).

Screw;

XHTS740P08RV0

Turntable motor cover

Base plate

Tabs

Slits

Figure C-1(b) Turntable Motor Cover Reinstallation

8.   Remove the three (3) screws holding the rear heat cover to 

the convection fan duct.

9.   Remove the two (2) screws holding the convection motor to 

the rear heat cover.

10. Remove the pipe, washers and the cooling fan from the con-

vection motor shaft.

11. Remove the ring on the convection motor shaft.
12. Now, the convection motor is free.

11 - 3

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11 - 4

1.   CARRY OUT 3D CHECKS.
2.   Push the lever of positive lock

®

 connector.

3.   Pull down on the positive lock

®

 connector.

Figure C-2. Positive lock

®

 connector

CAUTION: WHEN  CONNECTING  THE  POSITIVE  LOCK

®

 

CONNECTORS TO THE TERMINALS, CONNECT 

THE  POSITIVE  LOCK

®

  SO  THAT  THE  LEVER 

FACES YOU.

1.   CARRY OUT 3D CHECKS.
2.   Remove the wire leads as Positive lock

®

 connector removal 

above.

3.   Lift up the oven lamp from its retaining clips.
Now, the oven lamp is free.

1.   CARRY OUT 3D CHECKS.
2.   Remove the one (1) screw holding the green/yellow wire to 

the cavity back plate.

3.   Disconnect the leads of the power supply cord from the 

noise filter, referring to the Figure C-3(a).

4.   Release the power supply cord from the rear cabinet.
5.   Now, the power supply cord is free.

Figure C-3 (a) Power Supply Cord Replacement

Power supply cord

Green/ Yellow-

wire

Brown wire

Oven cavity back plate

Blue wire

Noise filter

Screw

L

TP

F 8 A

TL

DE

R

A0

2

TH

W

N

1.   CARRY OUT 3D CHECKS.
2.   Remove the two (2) screws holding the two (2) terminals of 

the main wire harness to the top heating element.

3.   Remove the two (2) screws holding the two (2) grill heater 

angles to the top of the oven cavity.

Terminal

Push

Pull down

1

2

Lever

Positive lock¨

connector

Figure C-2. Positive lock, connector

Bulb

Socket

Oven lamp

Lock

1.   Insert the moulding cord stopper of power supply cord into 

the square hole of the cavity back plate, referring to the 

Figure C-3(b).

2.   Install the earth wire lead of power supply cord to the oven 

cavity with one (1) screw and tight the screw.

3.   Connect the brown and blue wire leads of power supply cord 

to the noise filter correctly, referring to the Pictorial Diagram.

Figure C-3(b). Power Supply Cord Replacement

POWER

SUPPLY CORD

MOULDING

CORD STOPPER

OVEN CAVITY

BACK PLATE

SQUARE HOLE

4.   Remove the two (2) grill heater angles from the oven cavity.
5.   Remove the top heating element from the top of the oven 

cavity.

6.   Now the top heating element is free.

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11 - 5

1.   CARRY OUT 3D CHECKS.
2.   Remove the turntable motor cover from the base plate, 

referring to “TURNTABLE MOTOR REPLACEMENT”.

3.   Disconnect the wire leads from the bottom heating element.
4.   Remove the two (2) nuts holding the heater cover and 

heater packing to the bottom heater.

5.   Remove the heater cover and the heater packing from the 

bottom heating element.

6.   Remove the two(2) nuts holding the bottom heating element 

to the oven cavity.

7.   Remove the bottom heating element from the oven cavity.

1.   CARRY OUT 3D CHECKS.
2.   Disconnect the wire leads and the connectors from the 

control unit.

3.   Remove  the  one  (1)  screw  holding  the  control  panel 

assembly to the oven cavity front plate.

4.   Lift up the control panel assembly and pull it forward.
  Now the control panel assembly is free.

If the monitored latch switch, stop switch and monitor switch 

do not operate properly due to a mis-adjustment, the following 

adjustment should be made.

1.   CARRY OUT 3D CHECKS.
2.   Loosen the two (2) screws holding the latch hook to the 

oven cavity front flange.

3.   With the door closed, adjust the latch hook by moving it back 

and forward or up and down. In and out play of the door 

allowed by the latch hook should be less than 0.5mm. The 

horizontal position of the latch hook should be placed where 

the monitor switch has activated with the door closed. The 

vertical position of the latch hook should be placed where 

the monitored latch switch and stop switch have activated 

with the door closed.

4.   Secure the screws with washers firmly.
5.   Make sure of the all switches operation. If the latch head 

has not pushed the plungers of the monitor switch with door 

closed, adjust the latch hook position. At that time, the latch 

head should have pushed the plungers of the monitored 

latch  switch  and  stop  switch.  If  the  latch  head  has  not 

pushed the plungers of the monitored latch switch and stop 

switch with door closed, loose two (2) screws holding latch 

hook to oven cavity front flange and adjust the latch hook 

position.

1.   In and out play of door remains less than 0.5mm when 

latched position. First check the latch hook position, pushing 

and pulling upper portion of the door toward the oven face. 

Then check the lower latch hook position, pushing and 

pulling lower portion of the door toward the oven face. Both 

results (play of the door) should be less than 0.5mm.

Stop switch

Monitor switch

Monitored

latch switch

Tab

Post

Post

Figure C-4. Switches

1.   CARRY OUT 3D CHECKS.
2.   Remove the control panel assembly referring to “CONTROL

  PANEL ASSEMBLY REMOVAL”.
3.   Disconnect the leads from all switches.
4.   Remove the two (2) screws holding the latch hook to the 

oven cavity.

5.   Remove the latch hook.
6.   Remove the switch(es) from the latch hook by pushing the 

retaining tab backwards slightly and turning the switch(es) 

on the post.

7.   Now the switch(es) is free

Figure C-5 Latch Switches Adjustment

Latch hook

Door

Stop switch

Latch

Heads

Monitor switch

Monitored

latch switch

Tab

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11 - 6

2.   The  contacts  (COM-NO)  of  the  stop  switch  and  the 

monitored latch switch open within 1.8mm gap between right 

side of cavity face plate and door when door is opened.

3.   When the door is closed, the contacts (COM-NO) of the stop 

switch close.

DOOR FRAME ASSEMBLY
1.   Disconnect the oven from the power supply.
2.   Pull open the door slightly.
3.   Insert a putty knife (thickness of about 0.5mm) into the gap 

between the choke cover and door frame as shown in Figure 

C-6 to free engaging parts.

4.   Release choke cover from door panel.
5.   Now choke cover is free.
NOTE: When carrying out any repair to the door, do not bend or  

  

warp the slit choke (tabs on the door panel assembly) to  

  

prevent microwave leakage.

Figure C-6. Door Disassembly

Choke Cover

Putty Knife

Door Frame

6.   Lift the door upwards.
7.   Now, door frame assembly is free from oven cavity.

8.   Remove the four (4) screws holding the door panel to the 

door frame.

9.   Now, door panel is free.

10. Slide latch head upward and remove it from door frame with 

releasing latch spring from door frame and latch head.

11. Now, latch head and latch spring are free.

12. Remove the two (2) screws holding the door handle and the 

door handle base to the door frame.

13. Now, the door handle is free.
14. Remove the three (3) screws holding the door handle base 

to the door frame.

15. Remove the door handle base and handle decoration from 

the door frame by sliding rightwards.

16. Remove the front door glass from the door frame by sliding 

rightwards.

17. Now, the front door glass is free.

1.   Insert the front door glass to the door frame.
2.   Insert the door handle base and handle decoration into the 

door frame.

3.   Hold the door handle base and handle decoration to the 

door frame with the three (3) screws.

4.   When the door is closed the contacts (COM-NC) of the 

monitor switch and monitored latch switch open. And the 

contacts (COM-NO) of their switches close.

5.   Re-install outer case and check for microwave leakage 

around the door with an approved microwave survey meter. 

(Refer to Microwave Measurement Procedure.)

4.   Reinstall the door handle and the door handle base to the 

door frame with the two (2) screws.

5.   Reinstall the latch spring to the latch head. Re-install the 

latch spring to the door frame. Re-install latch head to door 

frame.

6.   Reinstall door panel to door frame.
7.   Hold the door panel to the door frame with four (4) screws.
8.   Located door panel hinge pins into cavity hinge location hole.
9.   Reinstall choke cover to door panel by clipping into position.
NOTE: 

1) 

2) 

1.   Door latch heads smoothly catch latch hook through latch 

holes and that latch head goes through centre of latch hole.

2.   Deviation of door alignment from horizontal line of cavity 

face plate is to be less than 1.0mm.

3.   Door is positioned with its face pressed toward cavity face 

plate.

4.   Check for microwave leakage around door with an approved 

microwave survey meter (Refer to Microwave Measurement 

Procedure.).

NOTE: The door on a microwave oven is designed to act as 

an electronic seal preventing the leakage of microwave 

energy  from  oven  cavity  during  cook  cycle.  This 

function does not require that door be air-tight, moisture 

(condensation)-tight or light-tight. Therefore, occasional 

appearance of moisture, light or sensing of gentle warm 

air movement around oven door is not abnormal and 

do not of themselves, indicate a leakage of microwave 

energy from oven cavity.

Figure C-7. Door Replacement

Pin

PIN

Lower

Oven Hinge

Upper

Oven Hinge

Lower

Oven

Hinge

Choke Cover

Slit Choke

Door Panel

Door Frame

Assembly

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