Diagnostics & Troubleshooting; Diagnostics; Diagnostic Guide; Less Dry Test - Maytag MED5800TW - Electric Dryer Technical Education

DIAGNOSTICS & TROUBLESHOOTING
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.

DIAGNOSTIC GUIDE

Before servicing, check the following:
• Make sure there is power at the wall outlet.
• Has a household fuse blown or circuit
breaker tripped? Time delay fuse?
• Is dryer vent properly installed and clear of
lint or obstructions?
• All tests/checks should be made with a
VOM (volt-ohm-milliammeter) or DVM
(digital-voltmeter) having a sensitivity of
20,000 Ω per volt DC or greater.
• Check all connections before replacing
components. Look for broken or loose
wires, failed terminals, or wires not pressed
into connectors far enough.
• A potential cause of a control not function-
ing is corrosion on connections. Observe
connections and check for continuity with
an ohmmeter.
• Connectors: Look at top of connector.
Check for broken or loose wires. Check
for wires not pressed into connector far
enough to engage metal barbs.
• Resistance checks must be made with dry-
er unplugged or power disconnected.

DIAGNOSTICS

WARNING
Electrical Shock Hazard

LESS DRY TEST

Begin with a fully assembled, empty dryer with
clean lint screen. Be sure dryer is connected
to a known good power source.
1. Set the following configuration:
•
•
•
•
2. Press the Push to Start (PTS) switch. Af-
ter approximately 16 seconds, the Timer
will start to advance to the Off position. If
this function does not occur, proceed to
the Diagnostic Test.

DIAGNOSTIC TEST

This diagnostic test allows factory/service
personnel to test and verify all inputs to the
electronic control. The basic operation of this
test is to notify the operator with an audible
beep every time the status of an input to the
control changes state.
This test is performed with a fully assembled
dryer, connected to a known good power
source.
6-1
Door - must be closed
Timer - Less Dry
Temperature switch - High
End of Cycle Signal switch - Louder