Troubleshooting Procedures - Amana MVH140E Service Manual

Troubleshooting Procedures

"PLEASE TOUCH TIME
appear in the display,
when unit is plugged in.
Display does not indicate
correct number pressed
or correct indication when
programmed.
Is continuity
indicated when
key pad is
pressed.
NO
Replace
control
key pad.
Unit operates.
OF DAY" does not
Measure voltage
between pin 1 and
pin 3 of CN1
connector
Is 120 volts
indicated.
NO
Verify proper
connection of
circuit board.
Measure resistance
of control key panel
after removing ribbon
connector.
Verify proper
connection of
YES
ribbon connector
for proper
connection.
1. Check power supply.
2. Check fuse.
3. Check oven thermostat.
YES
Replace
circuit
board.
Unit
operates.
Key pad matrix is located in
"Testing Procedures" on page 22.
ribbon
connector.
NO
Reconnect
25
Does ribbon
connector
have proper
connection.
YES
Replace
circuit
board.
RS2100005 Rev 0