Dexter Laundry T-30 Guida per l'amministratore

Dexter Commerical Vended Dryer

Troubleshooting, Fault Codes, And Schematics

Starting serial number Part # 8533-076-001 11/13

Dryer Trouble Shooting

Tumbler turns but no spark at burner Glass fuse Check small glass control fuse in back of

dryer. Replace if failed.

Thermostat Check if voltage is passing through the

two wires attached to the temoprature

thermostat

Ignition Check for 24VAC output from transformer.

Transformer Replace if have 120V between black & white

and no 24V between red and yellow.

Over temperature Check to see if manually resettable

thermostat. Thermostat is kicked out. Reset

by pushing red reset button.

Ignition control Check for 24VAC coming into the control

on the at burner red wire. If voltage, then

check for 24VAC out on the brown wire. Also

check for spark at the ignitor. If no 24VAC

output or no spark to the ignitor, replace

ignition control.

Air Flow Switch Check air ow switch to be sure it closes

when dryer is running. If not, adjust or

replace switch.

Hi-limit Check for continuity. Should be 0 ohms

resistance when cold. If not, replace

thermostat.

Gas supply No gas can cause system lockout

Symptom Probable Cause Suggested Remedy

Tumbler does not turn Drive belts Check both drive belts. Replace if failed.

Tumbler does not turn Check capacitor and motor. Replace if failed

Door switch Check door switch contacts and adjustment.

Adjust or replace door switch.

Timer Tumbler does not turn Check to see if heat timer is turned on

Part # 8533-076-001 11/13

Burner Lights, but goes

on and off

Electrodes Check low voltage harness for possible wire break or cuts to

allow no signal back to ignition control

Slow drying Temperature Setting Check thermostat for correct high temperature setting.

Adjust if necessary.

Air ow restrictions necessary 1. Check lint screen and clean if necessary.

2. Check exhaust for correct length and clean if necessary.

3. Check exhaust damper to insure that it opens when dryer

is running and closes when dryer is not in use.

4. Check makeup air to insure that it is adequate. Increase

makeup air if necessary.

5. Check static Back pressure no more than .3

Manual overtemp

Tripping Frequently

Recirculating chamber Lint

Accumulation

Remove manual overtemp thermostat and inspect in

chamber for excessive lint build up. Access also gained to

this chamber by removing recirculation duct mounted at

bottom of chamber, or the panel inside burner chamber

between burners and rear back panel

Exhaust ducting Excessive lint

buildup

Remove exhaust duct at rear of dryer and inspect for

excessive lint build up in complete duct from dryer to

where duct exits building.

Clean lint from top heat air

chamber above tumbler

Remove front panel completely. Be careful of any wiring

attached. Remove heated air chamber cover and clean

above tumbler back to burner housing.

Symptom Probable Cause Suggested Remedy

Tumbler turns, ignition

sparks, no ame

Gas supply Make sure gas supply is working.

Gas pressure Make manometer check of gas pressure. Adjust if necessary.

Spark Electrode Sensor Check for damage to electrode or mounting. Replace if

necessary.

Gas valve Check coil continuity, replace valve if failed.

Ignition Control Check for 24VAC to gas valve coils. If no voltage replace

ignition control.

Dryer Trouble Shooting

Part # 8533-076-001 11/13

Dryer Error Codes

Symptom Probable Cause Suggested Remedy

TEMP SENSOR

SHORT

Shorted Temperature

Sensor or wire.

The dryer control shall not start until

the detected short circuit is removed.

Regardless of condition of short circuit,

Error Code will be displayed until

programming button is pressed to return

machine to idle mode.

TEMP SENSOR

OPEN

Open Temperature

Sensor or wire

The dryer control shall not start until

the detected short circuit is removed.

Regardless of condition of short circuit,

Error Code will be displayed until

programming button is pressed to return

machine to idle mode.

PCB ERROR1 Memory corrupted Power machine down and try to reset

control. Varify voltage to the control

board. Check ground to board. Replace

control board if error can not be cleared

PCB ERROR2 Analog/ Digital Error Power machine down and try to reset

control. Varify voltage to the control

board. Check ground to board. Replace

control board if error can not be cleared

COMM ERROR1 Communication Bus

Error

Power machine down and try to reset

control. Varify voltage to the control

board. Check ground to board. Replace

control board if error can not be cleared

COMM ERROR2 No Dryer Model Selected This error occurs when a pin combination

on the model selection header is used

that does not have a model designated

for it. check connector marked Jumpers

on the control board.

COMM ERROR7 Communication Bus

Error

If connected to DexterLive, Disconnect

cable, and preform a soft restart by

holding down the program button on

power up.

Preform Soft restart.

contact your Dexter factory representive.

Fuse Error Internal Control program

Error.

Internal IC issue. Replace control.

Part # 8533-076-001 11/13

Wiring Diagram for 60hz Dryer -10

Part # 8533-076-001 11/13

Wiring Schematic for 60hz Dryer -10

Part # 8533-076-001 11/13

Wiring Schematic for 50hz Dryer -39

Part # 8533-076-001 11/13

Wiring Schematic for 50hz Dryer -39

Part # 8533-076-001 11/13

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