BE-0901E-AC-PC• BE-1201B-AC-PC- Page 239

BE-0901E-AC-PC• BE-1201B-AC-PC

12-7

Chapter 12 Troubleshooting

Symptom

Measures

Jump solenoid does not operate.

• Check to see if connection from the jump solenoid to connector P10 of

the head PCB is proper.

• Check the resistance value of the jump solenoid which does not

operate with the connector section. The normal resistance value is
approximately 185

Ω

.

→

  If it is faulty, replace the solenoid with a new one. In this case, the

head PCB may also be faulty. Also replace the head PCB with a
new one if it does not operate properly even after replacing the
solenoid.

• Replace the head PCB with a new one.

Wiper solenoid does not operate.

• Check to see if connection from the wiper solenoid to connector P11 of

the head PCB is proper.

• Check the resistance value of the wiper solenoid which does not

operate with the connector section. The normal resistance value is
approximately 28

Ω

.

→

  If it is faulty, replace the solenoid with a new one. In this case, the

head PCB may also be faulty. Also replace the head PCB with a
new one if it does not operate properly even after replacing the
solenoid.

• Replace the head PCB with a new one.

Pickker solenoid does not operate.

• Check to see if connection from the pickker solenoid to connector P8

of the head PCB is proper.

• Check the resistance value of the pickker solenoid which does not

operate with the connector section. The normal resistance value is
approximately 426

Ω

.

→

  If it is faulty, replace the solenoid with a new one. In this case, the

head PCB may also be faulty. Also replace the head PCB with a
new one if it does not operate properly even after replacing the
solenoid.

• Replace the head PCB with a new one.

Thread trimmer solenoid does not
operate.

• Check to see if connection from the thread trimmer solenoid to

connector P20 of the main PCB is proper.

• Check the resistance value of the thread trimmer solenoid which does

not operate with the connector section. The normal resistance value is
approximately 27

Ω

.

→

  If it is faulty, replace the solenoid with a new one. In this case, the

main PCB may also be faulty. Also replace the main PCB with a
new one if it does not operate properly even after replacing the
solenoid.

• Replace the main PCB with a new one.

Pressor foot solenoid does not
operate.

• Check to see if connection from the pressor foot solenoid to connector

P20 of the main PCB is proper.

• Check the resistance value of the pressor foot solenoid which does not

operate with the connector section. The normal resistance value is
approximately 80

Ω

.

→

  If it is faulty, replace the solenoid with a new one. In this case, the

main PCB may also be faulty. Also replace the mainPCB with a
new one if it does not operate properly even after replacing the
solenoid.

• Replace the main PCB with a new one.