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Overview of the Freedom Heat Pumps service manual for Samsung air sourced heat pumps from 2010-2015.
Instructions for entering and exiting the service test mode using remote controller buttons.
Displays 5 temperature sensor values in order using the 'View' button.
Checks run signals from thermostats into terminals B22 and B24.
The unit is functioning optimally when the Delta T across T/S1 and T/S2 is 5°C.
Table detailing display contents for each button press in service mode.
Information needed for a performance test, including unit details and temperatures.
Ensuring the tank sensor is correctly placed in the cylinder pocket for accurate readings.
Procedure for testing the immersion heater using test mode and an amp clamp.
Table of field setting values for domestic hot water (DHW) cylinder operations.
Details the three control modes (std/eco/pwr) for the immersion heater.
Identifies potential heating setup issues causing excessive run costs.
Identifies potential hot water setup issues causing excessive run costs.
Step-by-step guide for setting and deleting tank timers on the controller.
Details the two curves and field settings for weather compensation.
Procedure for warming the unit when commissioning from a cold state.
Table and graph showing sound levels at different compressor speeds.
Troubleshooting the E121 fault related to remote controller initialization.
Explains communication errors between indoor and outdoor units.
Using a multimeter to test communication signals between units.
Troubleshooting the E177 fault indicating a faulty MIM control box PCB.
Troubleshooting the E203 fault related to the inverter board connection.
How to view sensor readings using the outdoor unit main PCB buttons.
Advice on checking the refrigerant coil sensor for freezing units.
Interpreting high temperatures from the compressor gas sensor.
Explains E320 errors due to open circuit or very cold compressor temperatures.
Procedure for correctly installing the HP switch.
Procedure for testing fan motor resistance using a meter.
Diagnosing if the unit is working excessively hard, potentially causing E464.
Identifying if a faulty inverter PCB is the cause of E464.
Methods for testing compressor windings and earth resistance.
How to view sensor data using the remote controller's test mode.
Using K4 button to check sensor readings against a multi-meter.
Procedure to test the continuity of the flow switch.
Testing the flow switch for proper operation using a multimeter.
General