Samsung AF HV Series User & Installation Manual page 63

Error
NO Description
code
28 E484 PFC overload error
Input current sensor
29 E485
IPM for outdoor unit
30 E500 inverter compressor
overheating error
31 E554 Gas leak error
Capacity setting error
32 E556 between indoor
outdoor unit
Option mismatch error
between the indoor
33 E557
units (only applies to
DPM model)
Outdoor unit DC-Link
34 E469
voltage sensor
Pumping down refrigerant
• After installing the product, be sure to perform leak tests on the piping connections. After pumping down
refrigerant to inspect or relocate the outdoor unit, be sure to stop the compressor and then remove the
WARNING
connected pipes.
‐ Do not operate the compressor while a valve is open due to refrigerant leakage from a pipe or an unconnected
or incorrectly connected pipe. Failure to do so may cause air to flow into the compressor and too a high
pressure to develop inside the refrigerant circuit, leading to an explosion or product malfunction.
Pump-down is an operation intended to collect all the system refrigerant in the outdoor unit. This operation must be carried
out before disconnecting the refrigerant pipe in order to avoid refrigerant loss to the atmosphere.
1. Turn the system on in cooling with fan operating at high velocity and then let the compressor run for more than
5 minutes. (Compressor will immediately start, provided 3 minutes have elapsed since the last stop.)
2. Release the valve caps on High and Low pressure side.
3. Use L-wrench to close the valve on the high pressure side.
4. After approximately 2 minute, close the valve on the low pressure side.
5. Stop operation of the air conditioner by pressing the (Power) button on the indoor unit or remote control.
6. Disconnect the pipes.
Measures to be taken by installer
error
1. Check the location of the outdoor
unit when temperature of a heat
insulating board is abnormally
high
1. Check opening of the service valve
2. Check the connection status of
EEV and re-connect the connector
3. Check for leakage on connected
part between the product and
pipe, and pipe and extended pipe
1. Check the model name of the
indoor and outdoor unit
2. Check the indoor option and
re-input them
1. Check the model name within
indoor units
2. Check the indoor option and
re-input them
1. Check the power
ENGLISH-63
Measures to be taken by service
- 1. Replace the PBA
- 1. Replace the outdoor unit PBA
1. Check the location of the outdoor unit
when temperature of a heat insulating
board is abnormally high
2. Tighten the screw
3. Replace the outdoor unit fan
4. Replace the outdoor unit PBA
1. Open service valve
2. Check the connection status of EEV and
re-connect the connector
3. Find and block the leaking part and re-
charge the refrigerant
1. Check the indoor option
1. Check the indoor option and re-input
them
1. Check the power
technician