Error No. 187 - LG Multi V5 Service Manual

Please refer to the Safety Precautions on pages 4-7 for more detail to prevent injury or death regarding the operation and service
WARNING
troubleshooting of the Multi V product.
Error No. Description
187
Hydro kit P, HEX
error (P equals
Master: 1871
prevents from
Slave 1: 1872
freezing).
Slave 2: 1873
Details
Hydro kit error.
Due to our policy of continuous product innovation, some specifications may change without notification.
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1. Inlet water temperature is <5°C (41°F). Raise error code – Level 3
response.
2. Water outlet temperature sensor is disconnected or shorted. Values
3. Prevents HEX from bursting (from freezing) when operating. Does
not protect HEX if the glycol is inadequate, nor if the hydro kit is off
and not operating.
4. Outdoor unit compressor ramps up, and hydro kit operates. One
(1) minute later, pipe temperature at mid-temperature hot water
supply (inlet or outlet water) is <0°C (32°F), and mid-temperature
seconds.
ERROR CODES

Error No. 187

Causes
197