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If the dryer repeatedly has DSI module LOCKOUT failures, the cause may be due to high
voltage not getting into the DSI module ignitor probe assembly.
5) Check to insure that the red high voltage wire (between the ignitor spark electrode and the DSI
module)
is not wrapped around the sensor probe wire (the wire between the DSI module FP
terminal and the Ignitor/Flame-Probe Assembly). If the wires are touching one another, separated
and secure in place AWAY FROM ONE ANOTHER.
6) Check to insure that the dryer is properly grounded and that the ground connections (GND) to the
DSI module are secure.
7) If the problem persists, it is most likely to be in the external components (not the DSI module), or
wiring, due to a FLAME-OUT...proceed as follows:
NOTE: Preliminary steps - DO NOT OMIT - to minimize the time required to troubleshoot this
system.
a) Disconnect the electrical power to the dryer.
b) Visually check the DSI module components for visual damage.
c) Check wiring for loose connections, nicks, or cracking at the ceramic insulator, or shorting of the
sensor to the burner.
d) Inspect the DSI Ignitor/Flame-Probe Assembly...
...check electrode for visible cracking at the ceramic insulator or shorting of sensor to burner
...check to insure that the flame sensor rod is positioned over the flame area
...check for carbon deposits on the flame sensor rod
...check to insure that there is a 1/8 (3.175 mm) +/- 1/32 (+/- 0.79248 mm) gap between the
ground rod and the ignitor spark electrode
b. After performing these inspections and making corrections - if any - restore power to the dryer...start
the dryer and operate through one (1) complete cycle to insure that ALL components are functioning
properly. If a no heat condition persists refer to the Troubleshooting Flow Charts on page 27, page
28, and page 29.
1) To effectively use this information or the flow charts, each step must be completed in sequence,
performing whatever test are suggested. After the completion of each test, the guide will direct the
Service Technician to the next logical step in the troubleshoot sequence based on the outcome of the
previous check.
2) Components should be replaced only after each step has been completed and replacements after
each step has been completed and replacement is suggested in the flow chart. However, the
experienced technician realizes that a loose connection or broken or shorted wire may be at fault
where electrical components are concerned...and not necessarily the suspected component itself.