LG Therma V HM091MRS Installation Manual page 94

CONFIGURATION
94
NOTE
• Duplicated trouble : Option trouble with slight or heavy trouble
- If option trouble is occurred with slight (or heavy) trouble at the same time, the system
puts higher priority to slight (or heavy) trouble and operates as if slight (or heavy) trouble is
occurred.
- Therefore, sometimes DHW heating can be impossible in emergency operation mode.
When DHW is not warming up while emergency operation, please check if DHW sensor
and related wiring are all Ok.
• Emergency operation is not automatically restarted after main electricity power is reset.
- In normal condition, the product operating information is restored and automatically
restarted after main electricity power is reset.
- But in emergency operation, automatic re-start is prohibited to protect the product.
- Therefore, user must restart the product after power reset when emergency operation has
been running.