Question:

What does Error Code Hr mean and how can I resolve it?

Answer:

Error Code Hr indicates that there is no heater relay operation when there should be. This may be due to a problem with the PCB relay or an abnormal thermistor. To resolve this issue, please follow these steps:

Check the PCB relay for any signs of damage or malfunction. If necessary, replace the relay.

Examine the thermistor for any abnormalities or inconsistencies in its behavior.

If the problem persists, consult a professional technician for further assistance.