American Dryer Corp. AD-115ES II User Manual

Page 55

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2. Failed microprocessor controller (computer).

L.

Microprocessor controller (computer) will only accept certain keyboard (touch pad) entries...

1. Failed keyboard (touch pad) label assembly.

2. Failed microprocessor controller (computer).

M. Microprocessor controller (computer) locks up and light emitting diode (L.E.D.) display reads

erroneous messages or only partial segments...

1. Transient power voltage (spikes)...disconnect power to dryer, wait 1 minute, and reestablish power to the

dryer. If problem is still evident...

a. Failed microprocessor controller (computer).

b. Failed keyboard (touch pad) label assembly.

N. Dryer stops during a cycle and L.E.D. display returns to “FILL”...

1. Fault in microprocessor heat sensor circuit...

a. Loose connection in wires between temperature sensor and microprocessor controller (computer).

2. Loose connection somewhere in main power circuit to microprocessor controller (computer).

O. Gas heating unit is not operating (no heat)...no spark at burner area when dryer is first started,

and heat indicator dot is on...

1. Fault in sail switch circuit...

a. Sail switch is out of adjustment or has failed.

b. Sail switch damper is not closing or is fluttering...

1) Lint drawer or screen is dirty.

2) Restriction in exhaust ductwork.

2. Tripped burner manual reset hi-limit thermostat.

3. Tripped lint chamber sensor bracket manual reset hi-heat protector thermostat.

4. Failed Direct Spark Ignition (DSI) module (burner control).

5. Failed DSI ignitor or flame-probe assembly.

6. Failed microprocessor controller (computer).

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