AIRLESSCO 3A1182B Manuel d'instructions télécharger pdf (Page 18)

Troubleshooting

18 3A1182B

Pressure Control Repair

Motor Control Board Diagnostics

NOTE: Keep a new transducer on hand to use for test.

1. For sprayers with digital display, see Digital Display

Messages, page 19

2. Remove screws and cover.

3. Turn ON/OFF switch ON.

4. Observe LED operation and reference following

table:

Relieve pressure and unplug sprayer before servicing

control board. See Pressure Relief Procedure,

page 7.

NOTICE

Do not allow sprayer to develop fluid pressure with-

out transducer installed. Leave prime/pressure relief

valve open if test transducer is used.

LED

BLINKS

SPRAYER OPERATION INDICATES WHAT TO DO

Once Sprayer runs Normal operation Do nothing

Two t im e s

repeatedly

Sprayer shuts down and

LED continues to blink two

times repeatedly

Run away pressure. Pressure

greater than 4500 psi (310 bar,

31 MPa) or damaged pressure

transducer.

Replace motor control board or

pressure transducer.

Three times

repeatedly

Sprayer shuts down and

LED continues to blink four

times repeatedly.

Pressure transducer is faulty or

missing

Check transducer connection.

Open prime/pressure relief valve.

Substitute new transducer for

transducer in sprayer. If sprayer

runs, replace transducer.

Four times

repeatedly

Sprayer shuts down and

LED continues to blink four

times repeatedly.

Line voltage is too high Check for voltage supply prob-

lems

Five times

repeatedly

Sprayer does not start or

shuts down and LED con-

tinues to blink five times

repeatedly

Motor fault Check for locked rotor, shorted

wiring or disconnected motor.

Repair or replace failed parts.

Six times

repeatedly

Sprayer shuts down and

LED blinks six times

repeatedly

Motor is too hot or there is a

fault in the motor thermal

device

Allow sprayer to cool. If sprayer

funs correctly when cool, check

motor fan function and air flow.

Keep sprayer in cool location. If

sprayer does not run when cool

and continues to blink 6 times,

replace motor.

Eight times

repeatedly

Sprayer stops or does not

run

High input voltage Check power source for correct

voltage

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AIRLESSCO 3A1182B Manuel d'instructions Page 18

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