Maytag Commercial MHN30PD, Руководство пользователя

Страница: 14 / 16

FOR SERVICE TECHNICIAN ONLY - DO NOT REMOVE OR DESTROY
PART NO. W10340707A PAGE 14
Be sure to perform the Diagnostic Tests before replacing the
system components.
Pump Motor Continuity Test
Pins Results
1 to 2 Normal = approx. 106
Ω
Abnormal = Infinity
Motor Continuity Test
1. Unplug washer or disconnect power.
2. Disconnect the wire harness from the motor and measure the
resistance of the motor. Use the following table:
Pins Results
1 to 2 Normal = approx. 6.45
Ω
2 to 3 Abnormal = Infinity
1 to 3
Water Temperature Sensor
1. Unplug washer or disconnect power.
2. Disconnect the wire harness from the water temperature sensor
and measure the resistance of the sensor. Use the following table.
An abnormal condition is an open circuit. This reading can be
taken from the cable attached to the CCU terminal TH2.
Temperature Results
32°F (0°C) 35.9 k
Ω
86°F (30°C) 9.7 k
Ω
104°F (40°C) 6.6 k
Ω
122°F (50°C) 4.6 k
Ω
140°F (60°C) 3.2 k
Ω
158°F (71°C) 2.3 k
Ω
203°F (96°C) 1 k
Ω
Manually Unlocking the Door Lock System
1. Unplug washer or disconnect power.
2. Remove the toe kick panel.
3. Reach up along the inside of the front and locate the bottom
of the latch assembly.
4. At the bottom of the latch assembly is a tear-drop shaped tab.
5. Gently pull the tab down about 6 mm (1/4") or until a click is heard.
ELECTRONIC ASSEMBLIES -
REMOVAL OR REPLACEMENT
IMPORTANT: Electrostatic (static electricity) discharge may cause
damage to electronic control assemblies. See page 1 for details.
NOTE: Be sure to perform the Diagnostic Tests before replacing the
control board.
Primary (Black to black) 220 ohms
White to white 3 ohms
Green to green 1.2 ohms
* *The number 1 pin has been marked on the bottom part of the connector.
**An infinity measurement occurs when the multimeter does not detect an ohm reading.
CCU Wire Harness Connector Table
Unplug washer or disconnect power before taking ohm measurements.
Transformer Connector
Cycle Temperature Selections
Cycle Wash Temp. (all rinses are COLD)
WHITES . . . . . . . . . . . . . . . . . . . . .Hot = 116.6°F (47°C)
COLORS . . . . . . . . . . . . . . . . . . .Warm = 95°F (35°C)
BRIGHTS . . . . . . . . . . . . . . . . . . . .Cold = Tap Temp.
PERM. PRESS . . . . . . . . . . . . . . . . .Warm = 95°F (35°C)
DELICATES AND KNITS . . . . . . . . . . . . .Warm = 95°F (35°C)
QUICK CYCLE . . . . . . . . . . . . . . . . .Warm = 95°F (35°C)
1
1
1
1
1
1
Water Valve Locations
(
Ω
) Ohm Abnormal Pin Wire
Terminal Component Value Value Connectors* Coding
H
C
Hot Inlet
Valve #1
Cold Inlet
Valve #2
Cold Inlet
Valve #3
RP2 Wax Motor 1.2k
Ω
Infinity** 1, 2
at 25°C
DLS2 Door Locked Switch Continuity: 1, 2
Locked/Unlocked door locked.
No Continuity:
door unlocked.
DL3 Door Lock Coil 750
Ω
Infinity** 1, 3 door lock
Locked or Unlocked 3, 5 door unlock
SET2 Temperature Varies with Infinity** 1, 3
Sensor temperature
changes.
See above.
DP2 Drain Pump 106
Ω
Infinity** 1, 3
DCS3 Door Switch Continuity 1, 2
at door close.
No continuity
at door open.
DI6 Hot Inlet Valve #1 3.55k
Ω
Infinity** 1, 3 (hot
valve #1)
VCH7 Cold Inlet Valve #2 3.55k
Ω
, Infinity** 1, 3 (cold
Cold Inlet Valve #3 either coil (or more than valve #2)
10% lower 5, 7 (cold
or higher) valve #3)
IF2 RFI/UIC Transformer 0
Ω
Infinity** 1, 2
(or more than
10% lower
or higher)
PS8 Pressure Switch Infinity** for all Continuity at any 1, 2
except 4, 6 switch except 3, 4
with no water 4, 6 with no 4, 5
in tub water in tub 4, 6