background image

3

Safe Servicing Practices - All Appliances........................2

Table of Contents ....................................................3

18 Inch Stainless Steel Tub Dishwasher .........................4

Timer ......................................................................................4

Testing the timer ..................................................................4

Selector Switch .......................................................................4

To test the selector switch ...................................................5

Door Latch ..............................................................................5

Testing the door switches ....................................................5

Detergent and Rinse Aid Dispenser ........................................5

Dispenser Operation ...............................................................6

Testing the dispenser ...........................................................6

Wash Operation ......................................................................6

Wash Motor ............................................................................6

Drain Pump .............................................................................7

Water Valve .............................................................................8

Lower Spray Arm ....................................................................8

Center Spray Arm ...................................................................8

Filters ......................................................................................8

Thermostats ............................................................................9

Control Thermostat ..............................................................8

Safety Thermostat ...............................................................8

Control and Safety Thermostats in the Mount Assembly .....8

Heater .....................................................................................8

Tub and Door Attachments .....................................................8

Air Gap ................................................................................8

Sump ...................................................................................9

Delivery Tube .......................................................................9

Door Hinge and Door Springs .............................................9

Door Seal .............................................................................9

Tub Rollers ..........................................................................9

Vent ...................................................................................10

Table of contents

Disassembly and Service ......................................... 11

Outer Door Panel  .................................................................11

Console .................................................................................11

Timer ....................................................................................11

Door Latch ............................................................................11

Selector Switch .....................................................................11

Vent Housing and Vent Grate ................................................12

Dispenser ..............................................................................12

Lower Spray Arm ..................................................................12

Upper Rack ...........................................................................12

Center Spray Arm .................................................................12

Door Seal ..............................................................................12

Water Valve ...........................................................................13

Thermostats and Mounting Bracket ......................................13

Pressure Switch ....................................................................14

Door Spring ..........................................................................14

Hinge Assembly ....................................................................14

Drain Pump ...........................................................................15

Wash Motor and Pump Assembly.........................................15

Heater ...................................................................................16 

Sump ....................................................................................16

Parts List Breakdown .............................................. 17

Door/Control Panel ...............................................................17

Tub ........................................................................................19

Motor & Pump ......................................................................21

Racks ....................................................................................23

Service Information ............................................... 25

Service Information ..............................................................25

Wiring Diagram .....................................................................26

Summary of Contents for FMB330RGB0

Page 1: ...5995498770 September 2007 2007 18 Inch Built In Dishwasher Service Manual ...

Page 2: ...2 ...

Page 3: ...s in the Mount Assembly 8 Heater 8 Tub and Door Attachments 8 Air Gap 8 Sump 9 Delivery Tube 9 Door Hinge and Door Springs 9 Door Seal 9 Tub Rollers 9 Vent 10 Table of contents Disassembly and Service 11 Outer Door Panel 11 Console 11 Timer 11 Door Latch 11 Selector Switch 11 Vent Housing and Vent Grate 12 Dispenser 12 Lower Spray Arm 12 Upper Rack 12 Center Spray Arm 12 Door Seal 12 Water Valve 1...

Page 4: ...mer motor will start after the knob is moved from the off setting 6 It is best to advance the timer with the door open When the high temperature wash cycle is selected the timer advances the cycle up to the main wash section of the wash cycle then near the end of this section or when the indicator on the timer knob is straight down and again just before the plate warmer location the timer will pau...

Page 5: ... switches 1 Disconnect power to the unit for safety 2 When checking a switch always remove one wire from the switch 3 Now check the switch for continuity with the latch closed then for no continuity with the switch open If door is open the door switches are open Actuator Door strike Latch in the closed position Actuator Cam Detergent and Rinse Aid Dispenser The detergent and rinse aid dispenser co...

Page 6: ...and lock the cover Once the cycle reaches the main wash the timer applies power to the wax motor actuator The plunger of the wax motor extends pressing down on a pivot arm attached to the latch for the cover This releases the cover to dispense the detergent At the same time on the opposite end of this pivot arm a pin rides up in the actuating arm for the rinse aid dispenser it exits through a diff...

Page 7: ...sembly then to an air chamber on the front of the sump As the water level in the tub rises air trapped in the sump air chamber applies pressure on the pressure switch which Lower Spray Arm The lower spray arm turns in a clockwise direction spraying up into the lower rack The arm is attached to the spray arm support with a locking ring To remove hold the arm and turn the lock clockwise When reinsta...

Page 8: ...se the control thermostat After the thermostat closes the timer advances on to the next cycle The time needed for this to occur can vary depending on incoming water temperature and load Safety Thermostat The safety thermostat is a normally closed thermostat wired in series with the heater that will open if the temperature in the tub raises over 190 This thermostat only disconnects power to the hea...

Page 9: ...ed out and raised to a higher hole location If the tension is too great it can be lowered To make spring adjustments the dishwasher will have to be pulled forward to access the pins hinge arm spring locator pin Door seal The door seal seals the area between the tub and the inner door panel to prevent water leaks The door seal around the tub is all one piece and presses into a channel formed around...

Page 10: ... top of the tub passes out the vent This allows outside air to enter the tub from the right hand side through the air gap This air flow speeds the water evaporation which in turn forces more steam and moisture out the vent If the customer selects heated dry the added heat increases the steam pressure and allows for faster drying of the load There is a gasket around the vent housing and the vent ho...

Page 11: ...e door latch until last Timer 1 Disconnect power to the dishwasher 2 Remove outer door panel 3 Remove knob from timer by pulling straight off timer shaft 4 Remove console 5 Press in on locks for the disconnect block and pull block from timer 6 Remove two timer mounting screws Ground wire has a locking terminal press down on lock to remove terminal Door Latch 1 Disconnect power to the dishwasher 2 ...

Page 12: ...g down from top of rack until lock clicks There is a gasket inside the spray arm and locking in place will be tight make sure spray arm is fully locked to delivery tube Door Seal 1 To remove the door seal pull free from the channel around the tub 2 Locate the inside of new seal Go to the end of the seal one side will be shaved off This is the inside 3 Find center of seal Push center of seal into c...

Page 13: ...Complete repairs in reverse order 1 Disconnect power to dishwasher 2 Remove as much water as possible from sump 3 Remove toe kick and outer door panel 4 Turn off water supply to dishwasher then place protection under water line that attaches to the water valve to catch water that will be in the line as supply line is removed from the water valve 5 Access repair per note above or remove unit from u...

Page 14: ...nect power to dishwasher 2 Loosen dishwasher and pull forward to access door spring 3 Pull pin out of side frame to release top of spring 4 Remove outer door panel 5 Remove screws and nuts holding inner door panel to hinges close and latch inner door panel 6 Remove locking clip from both hinge pins and slide hinge assemble from product Mounting pin Frame 7 Reassemble in reverse order making sure l...

Page 15: ...nals have locks press down on lock to remove terminal 9 Replace drain pump in reverse order Figure below shows all components of the dishwash er with the unit laying on it s back Wash motor and pump Assembly 1 Disconnect power to dishwasher 2 Remove as much water as possible from sump before starting this repair 3 Remove toe kick and outer door panel 4 Turn off water supply to dishwasher then plac...

Page 16: ...there is protection for the floor before unit is laid down 8 Remove hoses from sump The hose from the pressure switch which is mounted to the air chamber of the sump is removed easier if it is pushed from the sump and not pulled off by the hose 9 Disconnect the disconnect for the thermostats 10 Carefully remove thermostat mount from sump 11 Install thermostats on new sump Make sure there is Therma...

Page 17: ...17 PARTS LIST BREAKDOWN ...

Page 18: ...18 ...

Page 19: ...19 ...

Page 20: ...20 ...

Page 21: ...21 ...

Page 22: ...22 ...

Page 23: ...23 ...

Page 24: ...24 ...

Page 25: ...NOTE WHEN HI TEMP OPTIO Service Information ...

Page 26: ...EN HI TEMP OPTION IS SELECTED THE TIMER WILL PAUSE UNTIL WASH TEMPERATURE IS REACHED ...

Page 27: ......

Reviews: