LG Therma V fault 232

What it means

Error (serious fail - system cannot be used before repair). Flow Sensor of indoor unit is damaged.

Likely causes

1. Flow Sensor of indoor unit is damaged
2. Water is not enough or there can be water leakage inside water circuit
3. Flow sensor is electrically open
4. Water pump is in trouble
5. Water leaking inside the product and accessories
6. Water leaking from water pipes and accessories (connections, heat storage tanks, etc.)
7. Valve in the water pipe is locked/closed
8. Blockage by foreign substances in the water pipes such as struts
9. CN_F_SENSOR connector removed or not fully seated
10. Cable interference around the flow sensor causing false switch state detection

Where to start

1. View Current flow rate on the service/display screen to verify actual system water flow rate.
2. Step 1: System stopped while operation - begin diagnosis
3. Step 2: Check pressure gauge reads 1.5~2.0 bar - if NO, investigate water charge/leakage (branch A)