Defect Code 28

Defect Code 28:

*D* Defect code memory: 28 Heater sensor, left:

Explanation: This defect code is stored when there is a short to ground, to plus or a break at connector blue Pin 18.

Effect of defect: If the defect is a current defect, a substitute value of 55 °C is used.

Possible cause: Voltage supply (approx.. 5 V) not OK, wire or left heater sensor defective.

Troubleshooting: Check voltage supply (approx.. 5 V with temperature sensor disconnected) as well as wires and repair or renew component as required.