Doughpro DP2350MBZ Operator's Manual - Page 6

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Symptom

Power Button on Digital Controller

face is depressed but doesn't turn

on.

Digital Controller's LED's are

scrambled or randomly irratic. If

when turning on, the display will

first go to segment check

Digital Controller on startup goes

through LED segment check (8888)

then to version # and then loops

back to to the above reboot.

Digital display shows PROB. No

heat on Upper Platen.

When depressing the tactile button

on Digital Controller, nothing

happens.

Digital display shows Rela and

Particular zone is over heating or

outer zone).

Beeper not functioning or

intermitten beeper sound.

DP2350 Automatic Air Press Trouble Shooting Guide

Probable Cause

Power Cord is not plugged in.

Circuit Breaker is tripped off in the

site's breaker box

Transformer has taken a electrical

surge and is damaged

Check voltage on the secondary side

of the Transformer. If you read

12VDC then you are receiving voltage

to the Controller.

Possibly blown Fuse

Possibly a componet on the Digital

Controller is damaged

Possibly control needs to reset

The relay driver on the digital control

may be blown.

Sensor lost it's continuity as shown

on a muti-meter.

The tactile buttons under the overlay

may be not close enough to activate.

Same goes if the buttons are already

pressed by overlay without

depressing button.

The Relay on the switched side is not

opening to regulate temperture.

Beeper on Digital Control board

failed.

DOUGHPRO

Plug power cord into wall 's

receptacle and depress power

button on controller

Reset circuit breaker that the Grill is

plugged into. Depress Power Button

to turn on.

Replace Transformer after you check

secondary side of transformer. If

working properly, you should

receive 12vdc.

Replace Controller. Controller

should be on once the power button

is depressed.

Replace fuse.

Replace Digital Controller

While unit is on (controller lit up)

Unplug unit, wait for 1 min. then

plug machine on and depress power

button.

Replace Digital Controller.

Disconnect prob that is open (no

continuity as shown on a multi-

meter. Must replace Sensor (RTD).

Do not cut and splice new sensor.

Install new 2000 ohm RTD sensor to

under side of Heat Platen and

reconnect to Controller.

Carefully (no too much at one time

to avoid fracturing the traces on the

Controller) tighten the nuts on the

back of the Controller until button

activate. Same goes in reverse if

buttons are held down by the

overlay.

Replace the Relay.

Replace Digital Controller board

Action to be Taken

Ref. #'s on

Explosion

Drawing

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A1.10

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