Midea VRF Series User Manual

V6R VRF 50/60Hz
121
Part
6
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Diagnosis and Troubleshooting
2.17 Hb: Low pressure sensor error
Digital display output
Description
 Low pressure sensor error.
 All units stop running.
 Error code is displayed on the unit with the error.
Trigger / recover condition
 Trigger condition: The main control board cannot receive the feedback signal of low pressure sensor.
 Recover condition: The main control board can receive the feedback signal of low pressure sensor.
 Reset method: Resume automatically.
Possible causes
 Outdoor unit Low gas stop valves are closed.
 Pressure sensor not connected properly or has malfunction.
 Outdoor main PCB damaged.

Midea VRF Series Specifications

General

Compressor Type	Inverter Scroll Compressor
Type	Variable Refrigerant Flow (VRF)
Refrigerant	R410A
Control	Centralized control, individual control
Indoor Unit Types	Wall mounted, cassette, ducted, floor standing
Energy Efficiency	High energy efficiency with DC inverter technology
Indoor Unit Noise Level	19 dB(A) to 45 dB(A)