Troubleshooting Washer-Extractor Cabinet Hardmount NetMaster Refer to Page 8 for Model Numbers CHM1171C www.comlaundry.com Part No.
Table of Contents Safety Information.............................................................................. Explanation of Safety Messages........................................................... General Safety Precautions................................................................... Important Safety Instructions ............................................................... Safety Decals ........................................................................................
Safety Information Explanation of Safety Messages General Safety Precautions Throughout this manual and on machine decals, you will find precautionary statements (“DANGER,” “WARNING,” and “CAUTION”) followed by specific instructions. These precautions are intended for the personal safety of the operator, user, servicer, and those maintaining the machine. In the interest of safety, some general precautions relating to the operation of this machine follow.
Safety Information 6. Do not allow children to play on or in a washer. Close supervision of children is necessary when the washer is used near children. WARNING If you or an unqualified person perform service on your product, you must assume the responsibility for any personal injury or property damage which may result. The manufacturer will not be responsible for any injury or property damage arising from improper service and/or service procedures.
Safety Information 20. If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer or its service agent. 21. Be sure that water connections have a shut-off valve and that fill hose connections are tight. CLOSE the shut-off valves at the end of each wash day. 22. The loading door MUST BE CLOSED any time the washer is to fill, tumble or spin. DO NOT bypass the loading door switch and permit the washer to operate with the loading door open.
Safety Information Safety Decals Operator Safety Safety decals appear at crucial locations on the machine. Failure to maintain legible safety decals could result in injury to the operator or service technician. To provide personal safety and keep the machine in proper working order, follow all maintenance and safety procedures presented in this manual. If questions regarding safety arise, contact the manufacturer immediately. Use manufacturer-authorized spare parts to avoid safety hazards.
Introduction Customer Service For technical assistance, call (920) 748-3121. Alliance Laundry Systems is not responsible for personal injury or property damage resulting from improper service. Review all service information before beginning repairs. Nameplate Location If literature or replacement parts are required, contact the source from whom the machine was purchased or contact Alliance Laundry Systems at (920) 748-3950 for the name of the nearest authorized parts distributor.
Introduction Model Identification Information in this manual is applicable to these washers.
Theory of Operation Starting the Machine Drain The door lock will not allow a cycle to be started until the door has been closed. Cabinet Hardmount washer-extractors use a normally open gravity-type drain system. No pump is used. When the drain valve opens, the perforated basket allows water to drain from it. Fill The operator selects a cycle and starts the machine. Water enters the machine through water valves that are controlled by the microcomputer.
Troubleshooting 1.
Troubleshooting 2.
Troubleshooting Please see following 2 pages for wiring diagram information.
Troubleshooting Control Has No Display (Sheet 1 of 2) Y: 208-240V/60HZ/1ø/2W/24VAC CTRL C24 14 AWG(2.5mm2) L1 C23 PURPLE T1A 6 DV1 FU1 DRAIN VALVE MOTOR M3 MOTOR COOLING FAN ALL MOTOR CIRCUIT WIRING IS 14 AWG BLACK (SPIN) J9-6-4 7 5 30 24VAC ALL WIRE IS 18 AWG UNLESS OTHERWISE SPECIFIED LOW SPEED RED (SPIN) J9-6-8 HIGH SPEED 1 86 24VAC 1 FU4 31 H1-1 F3A 250V 63 30 H1-2 5 { { MACHINE CONFIG.
Troubleshooting Control Has No Display (Sheet 2 of 2) CONTACTORS FACE FRONT OF MACHINE JMP 12K 20uF 50uF C23 JMP LEGEND J9-6 MOTOR CONNECTOR 8 = TERMINAL STRIP, TERMINAL #8 CONTACTOR DETAIL - OPTIONAL CONNECTIONS L2 T1 T2 95 96 TYPICAL RELAY SS1 1 SS3 3 SS2 WHITE (SPIN) J9-6-5 JMP 130uF 130uF JMP JMP 2 130uF C20 9 6 3 NOTES: 1 2 3 4 NORMALLY CLOSED CONTACTS NORMALLY OPEN CONTACTS 6 5 1 IF MOTOR ROTATION IS INCORRECT, REVERSE "BLUE" AND "BLACK" WIRES FOR LOW SPEED OR "
Troubleshooting 3. No Fill Analysis Note: Everything working properly and the control calling for water fill. (1) Is there voltage at wire 21 or terminal 31 on pressure switch to wire 19 at H4-1 on the logic board? No Check wiring to pressure switch. Replace pressure switch if necessary. Replace output board. Yes No (2) (3) Are LEDs V11 and V12 on the output board emitting light (on)? No Are fuses F6 and F7 on the output board blown? Yes Replace the blown fuse(s).
Troubleshooting Please see following 2 pages for wiring diagram information.
Troubleshooting No Fill Analysis (Sheet 1 of 2) Y: 208-240V/60HZ/1ø/2W/24VAC CTRL C24 14 AWG(2.
Troubleshooting No Fill Analysis (Sheet 2 of 2) CONTACTORS FACE FRONT OF MACHINE JMP 12K 20uF 50uF C23 JMP LEGEND J9-6 MOTOR CONNECTOR 8 = TERMINAL STRIP, TERMINAL #8 CONTACTOR DETAIL L2 L3 T2 T3 ST2 CURRENT OVERLOAD 7 TYPICAL RELAY 96 69 1 2 3 4 5 6 SS1 1 SS3 3 SS2 BLACK (SPIN) WHITE (SPIN) -6-5 JMP 130uF 130uF JMP JMP 2 130uF C20 9 6 3 NOTES: NORMALLY CLOSED CONTACTS 1 IF MOTOR ROTATION IS INCORRECT, REVERSE "BLUE" AND "BLACK" WIRES FOR LOW SPEED OR "RED" AND "WHI
Troubleshooting 4.
Troubleshooting Please see following 2 pages for wiring diagram information.
Troubleshooting Over Flow Analysis (Sheet 1 of 2) Y: 208-240V/60HZ/1ø/2W/24VAC CTRL C24 14 AWG(2.
Troubleshooting Over Flow Analysis (Sheet 2 of 2) CONTACTORS FACE FRONT OF MACHINE JMP 12K 20uF 50uF C23 JMP LEGEND J9-6 MOTOR CONNECTOR 8 = TERMINAL STRIP, TERMINAL #8 CONTACTOR DETAIL - OPTIONAL CONNECTIONS L2 T1 T2 95 96 TYPICAL RELAY SS1 1 SS3 3 SS2 WHITE (SPIN) -6-5 JMP 130uF 130uF JMP JMP 2 130uF C20 9 6 3 NOTES: 1 2 3 4 NORMALLY CLOSED CONTACTS NORMALLY OPEN CONTACTS 6 5 1 IF MOTOR ROTATION IS INCORRECT, REVERSE "BLUE" AND "BLACK" WIRES FOR LOW SPEED OR "RED" A
Troubleshooting 5.
Troubleshooting Please see following 2 pages for wiring diagram information.
Troubleshooting Drain Valve Analysis (Sheet 1 of 2) Y: 208-240V/60HZ/1ø/2W/24VAC CTRL C24 14 AWG(2.
Troubleshooting Drain Valve Analysis (Sheet 2 of 2) CONTACTORS FACE FRONT OF MACHINE JMP 12K 20uF 50uF C23 JMP LEGEND J9-6 MOTOR CONNECTOR 8 = TERMINAL STRIP, TERMINAL #8 CONTACTOR DETAIL - OPTIONAL CONNECTIONS KM5 EXTRACT CONTACTOR KM4 REV WASH CONTACTOR L1 L2 T1 T2 95 96 TYPICAL RELAY SS1 1 SS3 3 SS2 WHITE (SPIN) 9-6-5 JMP 130uF 130uF JMP JMP 2 130uF C20 9 6 3 NOTES: 1 2 3 4 1 IF MOTOR ROTATION IS INCORRECT, REVERSE "BLUE" AND "BLACK" WIRES FOR LOW SPEED OR "RED" A
Troubleshooting 6. Door Lock Switch Analysis (13) (12) (1) Is there voltage across H1-12 and H1-7 on the door interlock board? Yes Is there voltage across H1-14 & H1-6 on the door interlock board? Is there voltage across H1-3 on the logic board to H1-6 on the door interlock board? Yes No No Yes No Correct wiring between door interlock board and logic board. Replace Door Interlock board or control fuse. Replace logic board.
Troubleshooting Please see following 2 pages for wiring diagram information.
Troubleshooting Door Lock Switch Analysis (Sheet 1 of 2) Y: 208-240V/60HZ/1ø/2W/24VAC CTRL C24 14 AWG(2.
Troubleshooting Door Lock Switch Analysis (Sheet 2 of 2) CONTACTORS FACE FRONT OF MACHINE JMP 12K 20uF 50uF C23 JMP LEGEND J9-6 MOTOR CONNECTOR 8 = TERMINAL STRIP, TERMINAL #8 CONTACTOR DETAIL - OPTIONAL CONNECTIONS KM5 EXTRACT CONTACTOR KM4 REV WASH CONTACTOR L1 L2 T1 T2 95 96 TYPICAL RELAY SS1 1 SS3 3 SS2 WHITE (SPIN) 9-6-5 JMP 130uF 130uF JMP JMP 2 130uF C20 9 6 3 NOTES: 1 2 3 4 5 6 NORMALLY CLOSED CONTACTS NORMALLY OPEN CONTACTS 1 IF MOTOR ROTATION IS INCORREC
Troubleshooting 7.
Troubleshooting Please see following 2 pages for wiring diagram information.
Troubleshooting Door Switch Analysis (Sheet 1 of 2) Y: 208-240V/60HZ/1ø/2W/24VAC CTRL C24 14 AWG(2.
Troubleshooting Door Switch Analysis (Sheet 2 of 2) CONTACTORS FACE FRONT OF MACHINE JMP 12K 20uF 50uF C23 JMP LEGEND J9-6 MOTOR CONNECTOR 8 = TERMINAL STRIP, TERMINAL #8 CONTACTOR DETAIL L2 L3 T2 T3 ST2 CURRENT OVERLOAD 7 TYPICAL RELAY 96 69 1 2 3 4 5 6 SS1 1 SS3 3 6-4 SS2 WHITE (SPIN) 6-5 JMP 130uF 130uF JMP JMP 2 130uF C20 9 6 3 NOTES: NORMALLY CLOSED CONTACTS 1 IF MOTOR ROTATION IS INCORRECT, REVERSE "BLUE" AND "BLACK" WIRES FOR LOW SPEED OR "RED" AND "WHITE" W
Troubleshooting 8.
Troubleshooting Please see following 2 pages for wiring diagram information.
Troubleshooting Agitation Analysis (Sheet 1 of 2) Y: 208-240V/60HZ/1ø/2W/24VAC CTRL C24 14 AWG(2.
Troubleshooting Agitation Analysis (Sheet 2 of 2) CONTACTORS FACE FRONT OF MACHINE JMP 12K 20uF 50uF C23 JMP LEGEND J9-6 MOTOR CONNECTOR 8 = TERMINAL STRIP, TERMINAL #8 CONTACTOR DETAIL L2 L3 T2 T3 ST2 CURRENT OVERLOAD 7 TYPICAL RELAY 96 69 1 2 3 4 5 6 SS1 1 SS3 3 9-6-4 SS2 WHITE (SPIN) 9-6-5 JMP 130uF 130uF JMP JMP 2 130uF C20 9 6 3 NOTES: NORMALLY CLOSED CONTACTS 1 IF MOTOR ROTATION IS INCORRECT, REVERSE "BLUE" AND "BLACK" WIRES FOR LOW SPEED OR "RED" AND "WHITE"
Troubleshooting 9.
Troubleshooting Please see following 2 pages for wiring diagram information.
Troubleshooting Spin Analysis (Sheet 1 of 2) Y: 208-240V/60HZ/1ø/2W/24VAC CTRL C24 14 AWG(2.
Troubleshooting Spin Analysis (Sheet 2 of 2) CONTACTORS FACE FRONT OF MACHINE JMP 12K 20uF 50uF C23 JMP LEGEND J9-6 MOTOR CONNECTOR 8 = TERMINAL STRIP, TERMINAL #8 CONTACTOR DETAIL - OPTIONAL CONNECTIONS KM5 EXTRACT CONTACTOR KM4 REV WASH CONTACTOR L1 L2 T1 T2 95 96 TYPICAL RELAY SS1 1 SS3 3 SS2 WHITE (SPIN) -6-5 JMP 130uF 130uF JMP JMP 2 130uF C20 9 6 3 NOTES: 1 2 3 4 1 IF MOTOR ROTATION IS INCORRECT, REVERSE "BLUE" AND "BLACK" WIRES FOR LOW SPEED OR "RED" AND "WHIT
Troubleshooting 10.
Troubleshooting Please see following 2 pages for wiring diagram information.
Troubleshooting Drain Analysis (Sheet 1 of 2) Y: 208-240V/60HZ/1ø/2W/24VAC CTRL C24 14 AWG(2.
Troubleshooting Drain Analysis (Sheet 2 of 2) CONTACTORS FACE FRONT OF MACHINE JMP 12K 20uF 50uF C23 JMP LEGEND J9-6 MOTOR CONNECTOR 8 = TERMINAL STRIP, TERMINAL #8 CONTACTOR DETAIL - OPTIONAL CONNECTIONS KM5 EXTRACT CONTACTOR KM4 REV WASH CONTACTOR L1 L2 T1 T2 95 96 TYPICAL RELAY SS1 1 SS3 3 SS2 WHITE (SPIN) -6-5 JMP 130uF 130uF JMP JMP 2 130uF C20 9 6 3 NOTES: 1 2 3 4 5 6 NORMALLY CLOSED CONTACTS NORMALLY OPEN CONTACTS 1 IF MOTOR ROTATION IS INCORRECT, REVERSE "
Troubleshooting 11.
Troubleshooting Please see following 2 pages for wiring diagram information.
Troubleshooting Optional Drain Pump Analysis (Sheet 1 of 2) Y: 208-240V/60HZ/1ø/2W/24VAC CTRL C24 14 AWG(2.5mm2) L1 C2 T1A 6 DV1 FU1 MOTOR COOLING FAN ALL MOTOR CIRCUIT WIRING IS 14 AWG BLACK (SPIN) J9-6-4 5 24VAC ALL WIRE IS 18 AWG UNLESS OTHERWISE SPECIFIED LOW SPEED WHITE (SPIN) J9-6-5 M1 1~ BLU BRN VIO 7 30 BLUE (SPIN) J9-6-6 RED (SPIN) J9-6-8 HIGH SPEED 1 86 24VAC 5 F5A 250V FU4 31 H1-1 F3A 250V 63 30 H1-2 5 MACHINE CONFIG.
Troubleshooting Optional Drain Pump Analysis (Sheet 2 of 2) CONTACTORS FACE FRONT OF MACHINE JMP 12K 20uF 50uF C23 JMP LEGEND J9-6 MOTOR CONNECTOR 8 = TERMINAL STRIP, TERMINAL #8 CONTACTOR DETAIL - OPTIONAL CONNECTIONS KM5 EXTRACT CONTACTOR KM4 REV WASH CONTACTOR L1 L2 T1 T2 95 96 TYPICAL RELAY SS1 1 SS3 3 SS2 WHITE (SPIN) 6-5 JMP 130uF 130uF JMP JMP 2 130uF C20 9 6 3 NOTES: 1 2 3 4 5 6 NORMALLY CLOSED CONTACTS NORMALLY OPEN CONTACTS 1 IF MOTOR ROTATION IS INCORRE
Troubleshooting 12.
Troubleshooting Please see following 2 pages for wiring diagram information.
Troubleshooting Dispenser Flush Analysis (Sheet 1 of 2) Y: 208-240V/60HZ/1ø/2W/24VAC CTRL C24 14 AWG(2.
Troubleshooting Dispenser Flush Analysis (Sheet 2 of 2) CONTACTORS FACE FRONT OF MACHINE JMP 12K 20uF 50uF C23 JMP LEGEND J9-6 MOTOR CONNECTOR 8 = TERMINAL STRIP, TERMINAL #8 CONTACTOR DETAIL - OPTIONAL CONNECTIONS KM5 EXTRACT CONTACTOR KM4 REV WASH CONTACTOR L1 L2 T1 T2 95 96 TYPICAL RELAY SS1 1 SS3 3 SS2 WHITE (SPIN) -6-5 JMP 130uF 130uF JMP JMP 2 130uF C20 9 6 3 NOTES: 1 2 3 4 1 IF MOTOR ROTATION IS INCORRECT, REVERSE "BLUE" AND "BLACK" WIRES FOR LOW SPEED OR "RED
Troubleshooting 13.
Troubleshooting Please see following 2 pages for wiring diagram information.
Troubleshooting Contactor Analysis (Wash and Spin) (Sheet 1 of 2) Y: 208-240V/60HZ/1ø/2W/24VAC CTRL C24 14 AWG(2.
Troubleshooting Contactor Analysis (Wash and Spin) (Sheet 2 of 2) CONTACTORS FACE FRONT OF MACHINE JMP 12K 20uF 50uF C23 JMP LEGEND J9-6 MOTOR CONNECTOR 8 = TERMINAL STRIP, TERMINAL #8 CONTACTOR DETAIL - OPTIONAL CONNECTIONS KM5 EXTRACT CONTACTOR KM4 REV WASH CONTACTOR L1 L2 T1 T2 95 96 TYPICAL RELAY SS1 1 SS3 3 SS2 WHITE (SPIN) 9-6-5 JMP 130uF 130uF JMP JMP 2 130uF C20 9 6 3 NOTES: 1 2 3 4 5 6 NORMALLY CLOSED CONTACTS NORMALLY OPEN CONTACTS 1 IF MOTOR ROTATION IS
Troubleshooting 14.
Troubleshooting Please see following 2 pages for wiring diagram information.
Troubleshooting VFD Analysis (Sheet 1 of 2) L3 L3 L2 L2 L1 L1 DRAWING SIMPLIFIED FOR CLARITY. ELECTRIC HEAT CONTACTOR LEADS MUST CONNECT AT INPUT POWER BLOCK DO NOT JUMPER !! L3 L2 L1 18 AWG XT1 80 L3 7 T1A 250V 250V T1A L1 3 KA2 DRAIN RELAY 5 VIO BRN 6 7 DV2 CHAS 6 ALL MOTOR CIRCUIT WIRING IS 14 AWG OPTIONAL ELECTRIC HEAT REFER TO ELEC HEAT SCHEMATIC FOR WIRING & FURTHER INFO.
Troubleshooting VFD Analysis (Sheet 2 of 2) LEGEND 14 AWG (2.5mm ) 2 TYPICAL RELAY 1 2 3 4 FAN 1 M3 5 4 6 RIVE COOLING N (230V) S T U V W AC DRIVE UNIT (PART "A") SEE ALSO AP1 - OPTIONAL CONNECTIONS NOTES: 1 1 IF MOTOR ROTATION IS INCORRECT, REVERSE ANY TWO WIRES AT AC DRIVE UNIT TERMINALS U,V & W. 2 SUPPLY 1 COMPARTMENT WILL FLUSH WITH EACH FILL WHEN YV3 IS NOT INSTALLED. 3 CARD READER AND REMOTE PAY CONFIGURATION, DO NOT USE COIN VAULT AUDIT SWITCH.
Troubleshooting 15. Overload Relay Tripping Repeatedly Repeated overload tripping may result from a failed sinpac switch. Symptoms of a failed sinpac switch may include motor humming without rotation during spin or high current during running speed. The overload relay is tripping repeatedly. Yes Disconnect the power from the machine. Remove the SS2 and SS3 wires from the sinpac switch. Connect the two wires together using a jumper wire. Re-connect power to the machine.
Troubleshooting 16. Compartment 2 of Supply Dispenser Not Flushing Completely Compartment 2 of the supply dispenser is not flushing completely. Install a hose clamp onto one of the hoses connecting to the top of the vacuum breaker and tighten the hose clamp slightly. Refer to the Vacuum Breaker Illustration. Is there low water pressure (i.e., less than 30 psi) to the supply dispenser? NOTE: If the water pressure is corrected to factory specifications, the hose clamp may have to be removed.
Troubleshooting 17. Troubleshooting and Cleaning the Coin Drop When coins are placed into the coin slot, do they fall into the coin vault and does the coin drop sensor register that coins have been entered? Refer to Figure 1 for the path that coins follow when the drop is working properly. No 1. Disconnect electrical power to the machine and the coin drop. 2. Remove the coin drop from the machine. Refer to the wiring diagram supplied with the machine for connection information.
Troubleshooting COIN IN COIN SLOT COINS FOLLOWING PATH TO SENSOR COIN DROP SENSOR COTTON SWAB DRY5B DRY2B Figure 1 COMPRESSED AIR COTTER PIN Figure 4 PIVOT POINT METAL CLIP PENDULUM DRY3B DRY6B Figure 2 Figure 5 COIN DROP FRAME COIN RETURN EYES DRY COTTON SWAB DRY7B DRY4B Figure 3 F232204 Figure 6 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 65
