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WASHING MACHINE
Technical Information
• Due to possibility of personal injury or property damage, always contact an authorized
technician for servicing or repair of this unit.
• Refer to Service Manual for detailed installation, operating, testing, troubleshooting, and
disassembly instructions.
CAUTION
All safety information must be followed as provided in Service Manual.
WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to washer
before servicing, unless t
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ALIGNMENT AND ADJUSTMENTS WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. GENERAL ERROR FUNCTION Error Diagnostic Code NO Description Corrective Action Code Error Image The water level fails to drop below Go to “ Will Not Drain” 1 nd nd the Reset Water Level within 15 Troubleshooting Section. minutes. Door fails to Unlock After 7 Go to “ Will Not Unlock” 2 LO LO attempts. Troubleshooting Secti
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ALIGNMENT AND ADJUSTMENTS WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Error Diagnostic Code NO Description Corrective Action Code Error Image Go to “ Board Input Test” and check Abnormal high/low temperature or Water Temperature. Check loose 11 tE tE resistance (Thermal sensor or PBA or pinched wires. Replace PCB or resistance). thermistor. MICOM is attempting to drive the motor but is no
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ALIGNMENT AND ADJUSTMENTS WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. TEST MODE Quick Test Mode Test Mode: Power Off State EEPROM Clear Mode Each Test Mode for the Potomac is as follows in Special Test Mode Continuous Cycle the coming pages. The test modes indicated by Mode Power On State (Normal User Mode) the red arrows are modes unable to get an access Service Mode Quick Spin Test Mode on
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ALIGNMENT AND ADJUSTMENTS WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Definition of Quick Test Mode: - Check operation of all LED’s (Verify faulty LED). - Check model and software version. - Check different operating modes (e.g. water valve, motor, door, drain pump, etc.). How to Enter: - Plug in the unit. - Press Soil Level Key + Signal Key and Power Key at the same Time. Important. O nce test
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ALIGNMENT AND ADJUSTMENTS WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. EEPROM Clear Check Definition of EEPROM Clear Mode: - EEPROM initialization. - All course/option settings are to be reset to default values after EEPROM initialization. - When Service arises and it needs PCB replacement, EEPROM should be reset. How to Enter: - The machine must be turned off. - Press Delay Start Key, Power Ke
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ALIGNMENT AND ADJUSTMENTS WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Service Mode Definition of Service Mode: - Service Mode enables service technicians to verify the operation of the washing machine and do troubleshooting. - Service Mode can be entered during all washing cycle without interrupting the cycle except some of test modes. - Various tests can be done with Service Mode. So, trouble
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ALIGNMENT AND ADJUSTMENTS WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Quick Spin Test Mode Pre Wash + Soil Level Pre Wash + Soil Level 3 sec While it is not in Hold Speed Mode While a cycle is not running Pre Wash + Soil Level for 3 sec or after 10 minutes Definition of Quick Spin Test Mode: - Quick Spin Test Mode is to do Spin Check. (High RPM) How to Enter: - During Service Mode, press the Pre
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ALIGNMENT AND ADJUSTMENTS WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Cycle Count Check Mode Definition of Cycle Count Check Mode: - Cycle Count Check Mode is to tally up the number of washings. How to Enter: - To enter the Cycle Count Check Mode, press the Signal Key during Service Mode. Cycle Count Check Mode: 1. Activate the Service Mode in advance. 2. When the Signal key is pressed, the tot
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ALIGNMENT AND ADJUSTMENTS WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Fast Time Down Test Mode Definition of Fast Time Down Test Mode: - Fast Time Down Test Mode is to forward the program to the next cycle stage. How to Enter: - To enter the Fast Time Down Test Mode, press the Temp key during Service Mode. Fast Time Down Test Mode: 1. Activate the Service Mode in advance. 2. To forward the prog
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ALIGNMENT AND ADJUSTMENTS WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Board Input Test Mode Definition of Board Input Test Mode: - Board Input Test Mode is to displays a specified input after a key press. How to Enter: - To enter the Board Input Test Mode, press the Extra Rinse Key during Service Mode. Board Input Test Mode: 1. Activate the Service Mode first. 2. Press the Extra Rinse Key to st
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ALIGNMENT AND ADJUSTMENTS WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Diagnostic Code Check Mode Service Mode Diagnostic Code Spin Cycle No. Start/Pause Pressing Before making Code Signal Cycle Count Definition of Diagnostic Code Check Mode: - Diagnostic Code Check Mode is to bring up the stored diagnostic codes (refere nce codes for service technicians). How to Enter: - To enter the Diagnostic
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ALIGNMENT AND ADJUSTMENTS WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Demo Mode - Demo mode is entered when the Steam + Signal + PureCycle buttons are held down for five (5) seconds simultaneously in the power on state. - When entering Demo mode, the buzzer rings three (3) times and “- - - -” is displayed on the 7 segment display and all other LEDs are turned off. (Initial Demo mode) - Demo mo
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TROUBLE SHOOTING WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. TROUBLE DIAGNOSIS - As the micom wash machine is configured of the complicate structure, there might be the service call. Below information is prepared for exact trouble diagnosis and suitable repair guide. Caution for the Repair and Replacement Please follow below instruction for the trouble diagnosis and parts replacement. 1) As so
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TROUBLE SHOOTING WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. TROUBLE DIAGNOSIS Will Not Start • Plug the unit into the wall outlet. Check for proper voltage. • Check fuse or reset circuit breaker. • Push any key to turn on the washer and press the Start/Pause key to run the washer. • Close door and push the Start/Pause key to run the washer. • Check if washer is in a pause, soak or suds process.
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TROUBLE SHOOTING WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. TROUBLE DIAGNOSIS No Water Fill • Perform Quick Test Mode. Check all of Water Valves visually. (Pre Wash Valve, Cold Water Valve, Bleach Water Valve, Softener dispenses using Cold & Bleach Water Valve, and Hot Water Valve.) • Check if water taps are turned on fully. • Check Water Valves and Water Level Sensor (Refer to PCB Connecto
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TROUBLE SHOOTING WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. TROUBLE DIAGNOSIS Wet Clothes • Unbalance due to not enough load. Put additional load. • Due to excessive suds by using general detergent. Use HE (High-Efficiency) or reduce its quantity. • Low Spin Speed or Drain Only was selected. • Go to “ Will Not Spin”. Will Not Lock • Door is not aligned or closed properly. • Perform Quick Test
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TROUBLE SHOOTING WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. TROUBLE DIAGNOSIS • Read Lock Switch and PCB (CN2 & CN3). (Refer to PCB Connector Check.) • Perform Quick Test Mode. Check Door Lock. Check the output voltage of Door Lock Coil. If it reads 120V, change Door Lock Switch, and if not, change PCB. (Refer to PCB Connector Check.) No Key Operation • Option and Function buttons respond dif
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TROUBLE SHOOTING WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. TROUBLE DIAGNOSIS Wrong Water Temperature • Check if both of the water taps are fully open. • Make sure the domestic water heater is set to deliver water lower than 120°F (49°C) hot water at the tap. Also check water heater capacity and recovery rate. • If the water heater is located far from the washer, screw out the hot water tap an
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TROUBLE SHOOTING WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. PROBLEM CHECKING AND METHOD OF PCB - If you plug in the power cord and turn Power S/W on, memorized data is displayed. If any data is not displayed, check the followings. Hall Sensor Check Water Valve Check Check Voltage at Pin #4 and #3 of CN3 Check Voltage at Pin #1 of RY1 and Pin Tester Check = DC 0V or 1.3V #6,7,8,9,10 of CN1 Ch
