Equator SB 818 User's Manual
Contents
1. or burnt O Wiring or terminal burnt or broken O Thermostat is closed O Timer motor inoperative O Wiring or terminal burnt or broken O Timer open or burnt contact CO Replace heater element O Replace timer O Repair or replace Replace Replace timer Repair or replace Replace timer Dishwasher runs with door open O Defective door safety switch O Replace door safety switch Motor hums but will not O Start winding open Replace motor 10 start or run Motor bad bearings or locked rotor Replace motor Motor trips out on in terminal thermal overload protector O Start relay not dropping out Improper voltage Seal faces binding Motor shaft binding Motor windings shorted O Glass or foreign items in pump O Replace start relay Check voltage Repair or replace Repair or replace Repair motor C Clean and clear area Repeated dishwasher cycles O Circuit board contacts open or burnt Motor inoperative check resistances O Replace circuit board O Replace timer Dishwasher does not advance automatically Damaged circuit board Check circuit for power check if the wire misconnected O Have wire cut off O Replace circuit board O Reconnected wire and circuit board Repair Dishwasher will not fill with water O Water supply turns off O D2. wire leads from door latch and remove screws securing door latch assembly to inner door See Figure 5 Figure 5 Figure 6 4 Install new door latch assembly and reverse procedures to complete repairs FLOAT SWITCH ASSEMBLY The water float assembly is located in the right lower side of the dishwasher the portable located behind the lower front crosspiece When too much water enter the dishwasher the water will enter the float support through the overflow pipe the float will make the floating switch acts the electrical supply to the water valve will disconnected and the drain pump keep on working If the switch fails to operate check the following e Loose connection at the switch terminal e Switch not installed properly e Warped stem on float not contacting the actuator blade e Float support restricts free float movement Check if the float support is cracked Food or foreign material restricting free float movement e If the rubber cap lost See figure LI THERMOSTAT e SENSOR Figure 7 Figure 8 Remove Or Float Switch 1 Disconnect dishwasher from electrical supply 2 Remove electrical leads to float switch 3 4 Install new float switch and reverse procedures to complete repairs See Take down the switch from float support figure 6 TROUBLESHOOTING The troubleshooting cheek list is common for all dishwasher models They use different part
3. SERVICE MANUAL AND SPARE PARTS CATALOG First Edition March 2005 18 DISHWASHERS N NES y En 3 A i Tu y SU MODEL WB 818 SB 818 gt EQUATOR CONTENTS SPECIFICAT IONS Six ess een 3 SCHEMATIC DIAGRAM rm 4 WIREING 5 TIMER CYCLE CHART He au ee 6 COMPONENT OPERATION AND REPAIR Safety PrecautiORS 9 hh e een 7 R E 8 PRODUCT EXPLODED 9 10 TROUBLESHOOT I NG eee nnn 14 SPECIFICATION MODEL ELECTRICAL Rating 120V 60Hz Motor HP 1 5 Motor Amps Heater Wattage 1000W Wash Total Amps Load Rated 9 2A Thermostat Contacts 1279 F 5 F Close at 58 C 43 C WATER SUPPLY Suggested Min Incoming Water 120 to 150 Temperature 49 to 66 C Pressure PSI Minimum Maximum 15 120 PSI Connection NPT 3 8 Consumption Toil Gallons 3 545 Water Valve Flow Rate GPM 1 08GPM 10 TIMER CYCLE CHART COMPONENT OPERATION AND REPAIR SAFETY PRECATIONS Always turn off the electric power supply before servicing electrical component making ohmmeter checks or replacing any parts voltage checks should be made with a voltmeter having a full scale range of 130 volts or higher After service is completed be sure all safety grounding circuits are complete all electrical connectio
4. Something dirt foreign material under diaphragm in water inlet valve O Defective water inlet fill valve Clean water inlet valve or replace O Replace water inlet valve Detergent left in dispenser O Detergent cup held or blocked by large dishes Dispenser wet when detergent was added lt On proper loading dishes Instructs customer user Softener leaking O Softener broken O Softener nut loosen Replace softener OScrew down softener cap Leaking form air inlet Air inlet nut loose Air inlet install up side down Screw down air inlet nut O Reinstall air inlet properly Window Display E1 O Inlet Valve Damaged Inlet Valve Disconnected O Replace Inlet Valve Reconnected Line Window Display 2 Window Display O Pressure Switch Damaged O Heating Element open G Power Supply To heating Element Cutting O Replace Pressure Switch CO Replace OReconnect Line Window Display E4 O Float Switch Act lt O Take Remove The Rubber Cap Let Water Pour Out Window Display E5 O Thermostat Sensor Damaged Replace sensor See figure8 13
5. Tub seal torn worn or loose O Dishwasher door not sealing properly O Dishwasher is not level O Overburden wrong type of detergent O Hose clamps loose Heater element mounting nuts loose O Water seal leaking 0 O ring is not in position Motor and pump assembly not seated proper in tub liner bottom O Check and correct for proper fill O Replace tub seal O Adjust door latch assembly and or strike O Level dishwasher properly Instructs customer user Tighten all clamps securely O Tighten the nut Use a new water seal O Adjust the ring or replace a new O Replace seal Poor wash ability O Spray arm not rotating O Improper loading of dishes pans and other O Detergent dispenser inoperative Insufficient amount of detergent Or the detergent is old O Damaged or the impeller is broken O Detergent not dissolve Check for proper rotation Instructs customer user on proper loading per owner s guide Repair or replace dispenser C On proper amount of fresh deter gent to use O Replace pump assembly Incoming water temperature of 140 F is required to proper dissolve detergent Poor drying of dishes O Improper loading of dishes pots and other O Heating element open Incoming water temperature too low Wiring or terminal broken or burnt Instruct customer user proper loading per owner s guide O Replace heating ele
6. efective inlet valve O Check valve screen for obstructions O Defective float switch O Damaged circuit board O Wiring broken or burnt Turn water supply on CO Replace inlet valve Disassemble and clean screen O Replace switch O Replace circuit board O Repair or replace Incomplete water fill O Low water pressure O Clogged water inlet valve screen O Heavy water supply usage elsewhere in home O Kinked or restricted fill hose water inlet valve to fill tunnel Minimum water pressure of 15P S I O Clean water inlet valve screen O Use dishwasher when water usage is at a minimum Correct as needed Too much water fill O Water inlet fill valve defective O Damaged circuit board open or burnt O Float arm binding or out of adjustment O Replace water inlet fill valve O Replace circuit board O Repair adjust or replace Dishwasher will not pump out O Drain pump is restricted O Damaged impeller O Wiring or terminal contacts open or burnt Clear restrictions OReplace drain pump O Replace circuit board Water siphons out O Drain hose loop to low O Drain line connected to a floor drain not vented O Move to proper height Install vent air gap at counter top Water leaks O Spray arm not rotating or split Check for proper rotation or replace spray arm 11 O Overcharge of water O
7. ment Incoming water temperature of 1407 F for best drying results O Replace or repair Detergent cup will not open O Cup binding Roll pin retainer or shaft broken O Defective bi metal O Timer contact open or broken O Repair or replace Replace pin retainer or shaft O Repair or replace O Replace timer Door will not lath O Door latch damaged O Replace door latch Rinse agent liquid will not eject Rinse agent liquid leaks O Electromagnetic valve defective ORinse agent dispenser not mounted correctly O Plunger stuck or held in closed position O Container cracker or broken Replace valve lt gt Mount securely to rear of inner door panel Free plunger or adjust plunger release Replace container 12 O Defective seal plunger O Over filling container O Replace plunger lt gt Follow instructions owner s manual Noisy pump assembly O Impellers not properly shimmed or rubbing O Pump parts not properly installed O Debris in bottom of tub sump area O Defective motor bearings Use shim gauge furnished impeller and seal kit when seals the are shimmed properly impellers will be in correct operating position Inspect and correct O Clean out sump area Replace motor Dishwasher continues to fill or continues to fil even though in case of there is no voltage to fill valve
8. ns are secure and all access panels are in place CIRCUIT BOARD With the circuit board user selects the various cleaning cycles of the dishwasher with press the button The circuit board controls all the electrical functions of the dishwasher in all stages of each cycle functions can be traced on the chart Diagram provided in this service manual To Test Circuit Board If the circuit board is suspected of faulty operation reference chart and electrical schematic diagram and proceed as follows 1 Index the circuit board to all of the increment of the cycle each of the indicators light should is bright 2 Index the circuit board to one of the increment of the cycle which is a drain period 3 If the pump motor fails to operate during the first cycle increment check for power at the pump motor connector block if there is no power check the door latch switch if there is power check the pump motor as described in this section 4 If a component controlled by the circuit board fails to function as the circuit board advances through the cycle check for voltage at the circuit board terminals If the check voltage is supplied to the component check the component as described in this section Continuity through circuit board contacts other controls and wires can also be checked with an ohmmeter with electrical power disconnected If the circuit boards contacts fail to close in the sequence shown on the chart are burned have re
9. s to accomplish the same thing and diagnosis will remain similar When a problem arises and a possible cause is listed follow the test remove or replace procedures as outline in this service manual The wiring diagram shematic and timer cycle chat is a necessity when making electrical checks In most cases an ohmmeter will handle all the tests necessary For checking any particular cycle of operation it absolutely necessary that the cycle be set up as outlined in the product owner s guide CHECK THE YMPTOM REM FOLLOWING PN Dishwasher will not G fuse blow nor tripped Replace fuse or reset breaker operation when turn on O Supply line receptacle wiring harness Circuit board contacts open or burnt O Motor inoperative check resistances O Door switch open contacts O Door latch not making contact with door switch O Repair or replace O Replace circuit board CO Replace motor O Replace door switch Replace or adjust to make contact Dishwasher stop washing but draining O Overflow occur O Check the reason of overflow pull out the rubber cap wait for a minute let water pour out Water can t pour out from float support when pull out the rubber cap O Hole in the float supply is jammed OSuck with dust cleaner or other let water pour out Dishwasher runs but not heat Dishwasher will not stop O heater element open O Timer contacts open
10. sistance measurable with an ohmmeter or if circuit board does not run automatically replace the circuit board To Replace Circuit Board 1 Disconnect dishwasher from electrical supply 2 Remove the power button Figure 1 2 3 Remove the screws which locking the control panel See figurel Remove the power button and unscrew the screws which locking the circuit board behind the control panel See Figure 2 and 3 4 Take down the damaged circuit board and install a new circuit board reverse procedures to complete repairs See figure 3and 4 x Figure 3 Figure 4 DOOR LATCH AND SWITCH ASSEMBLY The latch and switch are located in the door assembly behind the control panel The dishwasher will not operate until the door is closed the latch engages the door catch To Test Or Replace Door Switch 1 Disconnect dishwasher from electrical supply Remove screws securing the control panel to the inner door See Figure 1 Remove wire leads from latch switch Use ohmmeter and check switch for continuity Bun If the switch tests is good Check dishwasher electrical power Check to see if timer is defective If switch is defective remove door switch from latch assembly 6 Install new switch and reverse procedures to complete repairs Replace Door Latch Assembly 1 Disconnect dishwasher from electrical supply 2 Remove screws securing the control panel to the inner door 3 Remove
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