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Troubleshooting
22. Troubleshooting Electronic Control Models
Troubleshooting
electronic control
models
Display
shows “PF”
(MM models) –
Has tumbler not
been run in last
six days?
Power tumbler
for at least two
continuous days
to recharge
battery.
TMB2149S-a
Yes
Enter a custom
cycle into
memory.
Display
shows “PF”
(MM models) –
Has a custom
cycle not been
programmed into
memory?
Display shows
“PF” (MM
models) – Is
battery
discharged?
If tumbler has
been powered
for at least two
continuous days,
replace battery.
Door open light
and display flash
with door closed –
Does door switch
need adjustment?
Adjust and test
door switch.
Door open light
and display flash
with door closed –
Is door switch
faulty?
Replace
door switch.
Door open light
and display flash
with door closed –
Is electrical
service connected
incorrectly?
Check service
connections to
terminal block in
junction box. For
120 or 240 volt
tumblers, neutral
wire must be
connected to
terminal marked
“NEUT”. On single
phase tumblers, hot
wire must be
connected to
terminal marked
“L1”. A ground wire
must be secured to
the ground screw
in the junction box.
No
Yes
No
Yes
No
Yes
Yes
No
No
Continued on
next page
No
Yes
Summary of Contents for ATB50CG
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