Manitowoc I0320 Spécifications télécharger pdf (Page 188)

188 Part Number STH025 2/14

SYMPTOM

Alert icon on the display is flashing and the alert

indicates a T1, T2, T3, or T4 Fault.

CHECK PROCEDURE

• Press the Menu button.

• Scroll down to Service and press right arrow.

• Scroll down to Diagnostics and press right arrow

• Scroll down to Temp Sensors and press right

arrow to display thermistor temperature readings.

NOTE: An open thermistor will display -22°F (-30°C)

and a shorted thermistor displays 475

°F (246°C).

Thermistor Test

1. Disconnect thermistor from control board and

measure resistance.

2. Measure temperature at the thermistor.

3. Compare measured resistance/temperature

readings to resistance/temperature relationship

chart.

A. Within 10% of the published resistance value

- Thermistor is good

B. Not within 10% of the published resistance

value - Thermistor is defective.

Control Board Test

1. Disconnect thermistor from control board - The

display temperature reading, dropping to

-22°F (-30°C) indicates the control board is good.

2. Short thermistor pins - The display temperature

reading, climbing to 475

°F (246°C) indicates the

control board is good.

1 2 ... 183 184 185 186 187 188 189 190 191 192 193 ... 271 272

Pas de commentaire

Manitowoc I0320 Spécifications Page 188