Samsung MIM-E03CN Manual

Air Source
Heat Pump
Model Numbers
MIM-E03CN
AE050/080/120/160RXYDEG and DGG
Installation and Maintenance Manual
With Pre-Plumbed Cylinders
Installation Manual rework.indd 1
30/09/2019 19:24:07
October 2019
Greenway Energy Limited
Unit 3 Colemeadow Road
North Moons Moat
Redditch
Worcestershire
B98 9PB
[email protected]

Leave these 4 pages with the Homeowner.
Thank you for buying a Samsung EHS heat pump system, your Samsung heat pump heats the house and hot water cylinder
much like a normal fossil fuel boiler, however there are a couple of differences which you should take notice of.
Your installer should have provided you with a room thermostat if you have radiators or a thermostat in every room if you have under
floor heating. The installer will be able to run through the operation of your stats with you. The heat pump will operate from the signal
sent by these stats back to the heat pump, please do not use the Samsung controller to control your heating.
Once the unit starts up it will take time to get to temperature, it is not instant. Within 10 minutes you should feel the radiators beginning
to warm up. Although it may take a few days to have everything to the required temperature, please do not switch your stats off during
this period.
Weather compensation and water law
The radiator temperatures will be lower than you are used to with a gas or oil boiler. To add to this, we run them in a weather
compensation mode, this means that the unit measures the outside temperature and adjusts the radiator temperature to suit.
The colder it is outside the warmer the rads will be and vice versa. This function is automatic and is designed to save you money. In very
cold weather the radiator will be at their hottest, they will reach 50°C or in some cases 60°C where required.
Running your machine efficiently
It is very expensive to heat the house up from cold, with a heat pump the best advice is to maintain the house at as close to constant
temperature as possible all the time.
Please DON’T set the room temperature too low when you leave the house, ideally drop it no more than 2 degrees below your normal set
temperature when you go out or it will take a long time and a lot of money to recover.
To switch off the heating in summer set your room thermostats down to 16°C to avoid the heating starting up. Your radiators will have
thermostatic valves on them, you can adjust each room’s temperature with these.
Water temp in weather comp mode
Ambient temperature °C
Flow temperature °C
-5
35
55
50
45
40
0 5 10 15
Handover of the System

Water temp in weather comp mode
Ambient temperature °C
Flow temperature °C
-5
35
55
50
45
40
0 5 10 15
General Advice
The heat pump comes with a Samsung controller which looks like
this, you should not use this or press the buttons, it is used for
commissioning and fault diagnosing the system only.
On Youtube (search for freedom heat pumps) there are videos
showing how to use the controller, faults etc.
Normally the remote controller will look like this: it will show Zone,
on SET 0.0°C and DHW set 48.0°C standard. The on off button will
be lit up in white. This is normal.
If the system goes into fault, the screen will show a number at the
bottom starting with E, for example E911 – A00. The green light
will go out and a red light will flash. The engineer will want to know
this number when you call.
Please avoid turning the unit off at the power supply especially
in cold weather. If the unit is off and the weather is very cold, it
cannot protect itself and your warranty will be at risk.
If the unit is off and the temperature outside is cold, it will
automatically run the pump for a few minutes to stop freezing.
In extreme weather, below -2°C the water pump will run
continuously, you cannot stop this.
Hot Water
On the right of the controller it will say DHW set 48°C standard, this means your unit is monitoring the cylinder temperature.
The unit is set up to maintain the water between 43 and 50°C for efficiency, this can be increased to operate between 53 and 60°C all
the time if required.
As you use the water the heat pump will constantly top up the cylinder. The hot water cylinder has priority over the heating, if the
cylinder temperature falls 5 degrees below its set point the unit will automatically switch to heating the cylinder. This should take less
than an hour.
Once set temperature is achieved the unit will go back to heating the house. The hot water cylinder loses almost no heat (1/3 a degree
an hour) if no hot water is used.
With if you want to heat the cylinder quickly press right so the DHW is high lit in blue press ok the screen will show the set temperature,
you can adjust this here. It should be on 48°C. Press ok and the screen offers options of economic, standard, power and forced, scroll
down 2 x to forced, press ok. This will heat the tank to set temperature immediately with the HP and Immersion together. It will return to
standard after 1 hour.
An anti-legionella / disinfection operation will be completed at a 3am every Tuesday morning. The unit will heat the cylinder with the
immersion to 60°C, the hot water will be hotter on a Wednesday morning than the rest of the week. If legionella is not completed this
e919 will flash on screen, you need to call an engineer to check it.
If you don’t require 24/7 hot water It is possible to time clock the hot water to reduce costs, the timer video on you tube will show you
how to do this.
Handover of the System

Please Note
• The operation mode display on the remote controller changes depending on the selected language.
• Some functions may not be available, depending on the product specifications.
• You can see the operation status on the LED display.
ON: Operating
Blinking: An error occurred
OFF: Turns off
Location Function
1Operation status display - Displays the operation/function settings and statuses.
2Operation On/Off button (LED display) - Turns the Air to Water Heat Pump power On/Off
3Up/Down button - Moves between items vertically or changes the set temperature.
4Left/Right button - Moves between items horizontally or changes the item value.
5OK button - Saves your new settings.
6Save & Return button - Saves your new settings and returns to the previous step.
7Option button - Selects the detailed setting function.
Handover of the System

The Samsung heat pump should be maintained at least once a year to comply with warranty and RHI.
Maintenance procedure
Stop the unit, clean the water filters, shut the valve, undo the back
and pull the strainer out and replace it.
Test the concentration of the Anti-freeze (glycol) in the system
using a Glycol tester the level should be 25%. If you don’t have a
glycol tester a glycol tester / refractometer can be bought from
your heat pump supplier or online.
Refill the unit, pressure should be 0-3 bar.
We need to test the operation of the unit against the hot water cylinder. So first we need to draw off 50 litres of water, run a couple of
taps for 5 mins to achieve this. The unit should start up automatically in hot water mode, if it doesn’t press the DHW power button on
the controller, in 3-4 mins it will start heating the cylinder, a coke can symbol will show in the status section of the remote controller.
The heat pump should be able to achieve 48°C cylinder temperature without using the immersion heater.
While running, check the outdoor unit for damage & debris, the coil needs washing, we recommend you use an approved EHS heat
pump cleaning chemical, your distributor will stock this. Instructions are given on the bottle. You also need to clean and polish the
outside casing we recommend car wax to do this.
Maintenance of Monobloc Systems
Hot Water Cylinder
Check electrical connections & sensor is above the immersion and at
least 100mm into the tank and the overheat thermostat is set to 70°C. On
a Telford cylinder set the stat to 5.
With if you want to test the cylinder quickly press right so the DHW is
high lit in blue press ok the screen will show the set temperature, you
can adjust this here. It should be on 48°C. Press ok and the screen offers
options of economic, standard, power and forced, scroll down 2 x to
forced, press ok. This will heat the tank to set temperature immediately
with the HP and Immersion together. It will return to standard after 1
hour. Measure the immersion heater current it should draw 12-13 Amps.
With the unit running flat out measure the temperature of the air as it
enters the coil and the temperature of the air in the garden.
They should be the same check cold air is not recirculating.

Installing the Outdoor Unit (Boiler)
Position the outdoor unit so that the air flows into an open area, where there are no plants and animals. If the unit is to be installed within
a mile of the sea you need to have the unit coated suing Blygold, ask us for details. If you are applying for RHI and going through MCS you
need to make sure the system meets MIS020.
Install the outdoor unit on a flat, stable surface, it needs to be securely mounted at least 100mm off the ground on rubber feet. The unit
must be bolted down for security using 10mm bolts and Zebedee’s.
The unit must have adequate drainage away from the unit; it can produce up to 6 L / hour of condensate. If you are installing the unit at
height you can install a drain pan under the unit but its best to let the unit drain into the ground.
Dimensions:
Size 12 and 16 - 1420mm (h) 940mm (w) 330mm (d) 103kg
Size 8 - 998mm (h) 940mm (w) 330mm (d) 75kg
Size 5 - 798mm (h) 880mm (w) 310mm (d) 59kg
The space around the unit is very important, allow:
300mm to the left hand side (facing the front of the unit),
600mm to the right of the unit,
300mm to the rear of the unit and 1500mm to the front of the
unit.
Installing the Control Box MIM-E03CN
The control box contains the flow switch, cylinder sensor (blue) 2
red safety sensors, some cables for a backup heater, a black cable
for smart grid connections and the remote controller.
Install the control unit indoors, it’s not waterproof.
It needs to be sited within 15m of the hot water cylinder, less than
100m from the outdoor unit and as near as possible to the pump,
flow switch and any zone valves.
The box is 329mm wide, 439mm high, 168mm deep, and weighs
3.5kg
The Samsung remote controller MUST be in a heated space above
5 degrees C.
300 or more
300 or more
1500 or more
600 or more
Installation
Pump
Z1
To Heating Zone or
Zones
Put Zone Valves here if
more than 1 heating
zone is required
Pump
HP
H
HW
Heating ow and return can exit to
the right as shown but can be
straight up or down

Installation
Pump
Z1
To Heating Zone or
Zones
Put Zone Valves here if
more than 1 heating
zone is required
Pump
HP
H
HW
Heating ow and return can exit to
the right as shown but can be
straight up or down
You need to connect the hot and cold feeds, the tundish and drains. You need to install an expansion vessel on the heat pump side and the heating side of the system and one onto the cylinder. The 300l cylinder needs a floor area of 700 wide by 850 deep, the cylinder is 1650 high and 555mm diameter. The 200l cylinder needs a floor area of 700 wide by 800 deep, the cylinder is 1500 high and 510mm diameter.
Heating & HW Pre-Plumbed
Heating & Hot Water, Pre-Plumbed
Installation

Pump HP is wired Live to B8 and Neutral to B7, MAX pump power is 500W. 2 port valve for Hot water, wire brown to B17 and blue to B15, 2 port valve for Heating wire brown to B10 and blue to B15. Orange and Grey wires are not used on these 2 valves. The heating run signal links permanent live B20 - B22.If you need Neutral use B19.
Wiring Diagram Pre-Plumbed
Tank Sensor,
15m long
Don’t cut this
Immersion
Heater
Communication Cable
2 core, 1mm (16Vdc)
Flow Switch, 2m long
You can extend this
Power Input
16 Amps
Run signal from UFH,
thermostats or Zone
valves Z1, Z2 etc.
Note on the zone valve HW the grey
and orange wires are not used
Pump Z1Pump HP
H HW
Power supply 240V
16 Amp for the 5kW 20 Amp for the 8kW
32 Amp for the 12kW 32 Amp for the 16kW
F1 F2 L N
Heating & Hot Water, Pre-Plumbed
Installation

Heating & Hot Water, Pre-Plumbed
Installation
Valve Z2 Power In
Valve Z1
Run Signal to
Heat Pump
As many heating zone valves as you like can be connected to the system.
B20 B22 Power In
Heating & Hot Water, Pre-Plumbed
Installation
When commissioning this system, you need to follow the procedure below don’t skip this, if you do the unit won’t work properly
Fill in the warranty card on page 4 and 5 Hand the end user pages 6-8.
Start-up Procedure
Filling and flushing, when installing any Heat pump, we insist on a thorough system flush prior to connection in line with the Building
Regulations for England and Wales, Part L, 2006. Using the power flusher fill the system with water and 25% Propylene Glycol, there is no
pressure sensor in the unit so we can operate from open vented to 3 bar maximum.
Setting up the cylinder immersion heater
To avoid the immersion heater cutting out before the legionella function is complete
you have to set the stat in the immersion heater to 70°C minimum, on a Telford cylinder set it to 5.
Check the tank sensor
The blue tank sensor MUST be installed above the immersion heater and it must be
securely fixed in the tank right into the back of the pocket, I would use heat paste and
cable ties to do this.
Powering Up
Makes sure all your room thermostats are off and all underfloor run signals are off.
Apply power to outdoor and indoor unit, you should see red lights on the PCBs of both
units. If there are no lights you will need the electrician to check for power.
The remote controller will light up immediately, it will say scanning 0, after a few
seconds it will say scanning 1.
Scanning 0 means the indoor unit is ok, scanning 1 means the outdoor unit is ok. If
scanning 1 does not show after 30 seconds check the outdoor unit is powered up.
Remove the cover and check the PCB is lit up.

Setting up the controller and the time.
1. Press the gear button, bottom right. Press v, then > option,
press OK
2. User Mode, press OK
3. Wired remote controller, press ok
4. LED > to on
5. Button Mute > on
6. Current time >
7. Date > OK
8. Adjust day with ^ and v, press > adjust the Month with ^
and v, press > adjust Year adjust with ^ and v press, ok.
9. Go to Time
10. Adjust hour with ^ and v, press > adjust the mins with ^ and
v, press ok.
11. To get back to the normal screen press return 5 times
The cylinder timer and field settings will already be set up for you.
Heating & Hot Water, Pre-Plumbed
Installation
Cylinder Timer, if you are heating a hot water cylinder
To avoid the cylinder heating being switched off accidentally we normally add 2 on timers a day, one
at 3-00 am and one at 15-00 pm. This stops nuisance tripping, resets the unit after power cuts and
insures the cylinder is hot 24 hours a day. We don’t normally set any off times.
To set the cylinder up as above:
1. From the front screen press the gear button, scroll right > to schedule, press ok.
2. If any timers are showing highlight them and select delete. When no timers are shown we can
add some new ones.
3. Highlight + add schedule, press ok
4. Highlight daily schedule, press ok
5. Type - quiet will show, press v to DHW, do not use quiet
6. Press > press ^ to set to Standard, press >, adjust hour to 3, am press ok
7. Scroll up ^ to + add a timer
8. Highlight + add schedule, press ok
9. Highlight daily schedule, press ok
10. Type quiet will show, press v to DHW, do not use quiet
11. Press > press ^ to set to Standard, press >, adjust hour to 3, pm press ok
Now turn to page 20 to start and test the unit

Pump Z1
Header,
Buffer or
Heat
Exchanger
Pump HP H
HW
Reduced Glycol System. If you want to reduce the amount of Glycol to be used in the system, you can install a plate heat exchanger. The heat exchanger needs to be suitably sized if in doubt please ask.
Heating & Hot Water Systems
Heating & Hot Water Installation

Wiring Diagram Heating & Hot Water
Communication Cable
2 core, 1mm (16Vdc)
Flow Switch, 2m long
You can extend this
Tank Sensor,
15m long
Don’t cut this
Power Input
16 Amps
Run signal from UFH,
thermostats or Zone
valves Z1, Z2 etc.
Note on the zone valve HW the grey
and orange wires are not used
Pump Z1Pump HP
H HW
Power supply 240V
16 Amp for the 5kW 20 Amp for the 8kW
32 Amp for the 12kW 32 Amp for the 16kW
F1 F2 L N
Pump HP is wired Live to B8 and Neutral to B7, MAX pump power is 500W.
2 port valve for Hot water, wire brown to B17 and blue to B15, 2 port valve for Heating wire brown to B10 and blue to B15. Orange and Grey wires are not used on these 2 valves. The heating run signal links permanent live B20 - B22.If you need Neutral use B19.
Heating & Hot Water Installation

When commissioning this system, you need to follow the procedure below don’t skip this, if you do the unit won’t work properly
Fill in the warranty card on page 4 and 5. Hand the end user pages 6-8.
Start-up Procedure
Filling and flushing, when installing any Heat pump, we insist on a thorough system flush prior to connection in line with the Building
Regulations for England and Wales, Part L, 2006. Using the power flusher fill the system with water and 25% Propylene Glycol, there is no
pressure sensor in the unit so we can operate from open vented to 3 bar maximum.
Setting up the cylinder immersion heater
To avoid the immersion heater cutting out before the legionella function is complete
you have to set the stat in the immersion heater to 70°C minimum, on a Telford cylinder set it to 5.
Check the tank sensor
The blue tank sensor MUST be installed above the immersion heater and it must be
securely fixed in the tank right into the back of the pocket, I would use heat paste and
cable ties to do this.
Powering Up
Makes sure all your room thermostats are off and all underfloor run signals are off.
Apply power to outdoor and indoor unit, you should see red lights on the PCBs of both
units. If there are no lights you will need the electrician to check for power.
The remote controller will light up immediately, it will say scanning 0, after a few
seconds it will say scanning 1.
Scanning 0 means the indoor unit is ok, scanning 1 means the outdoor unit is ok. If
scanning 1 does not show after 30 seconds check the outdoor unit is powered up.
Remove the cover and check the PCB is lit up.
Valve Z2 Power In
Valve Z1
Run Signal to
Heat Pump
As many heating zone valves as you like can be connected to the system.
B20 B22 Power In
Heating & Hot Water Installation

Heating & Hot Water Installation
Setting up the controller and the time.
1. Press the gear button, bottom right. Press v, then > option,
press OK
2. User Mode, press OK
3. Wired remote controller, press ok
4. LED > to on
5. Button Mute > on
6. Current time >
7. Date > OK
8. Adjust day with ^ and v, press > adjust the Month with ^
and v, press > adjust Year adjust with ^ and v press, ok.
9. Go to Time
10. Adjust hour with ^ and v, press > adjust the mins with ^ and
v, press ok.
11. To get back to the normal screen press return 5 times
The cylinder timer and field settings will already be set up for you.
Field settings for heating
1. Press ok to wake the controller up.
2. Press ^ and v together for 6 seconds, password shows you need to set 0202 by pressing.
3. Press >, then ^ twice, > twice, ^ twice then press OK
4. Press v 8 times to Field setting Value, press >
5. 10** will show press v to 20**Water law press >
6. 201* will show Outdoor temp
7. Set low to 15 and set high to -2 (-5°C in Scotland) using ^ and v press ok
8. Go to 202* water out, press ok
9. Set low to 37 and set high to 50 for radiators and 45 for underfloor heating using ^ and v press ok
10. Press v nine times to 2091, press ok, press v to use Signal on off WL interlink Off water pump 3, press ok, press return.
You have now set up the weather compensation. The water in the rads UFH will be warmer in cold weather and cooler in warm weather.
Installation Manual rework.indd 18

Cylinder Timer, if you are heating a hot water cylinder
To avoid the cylinder heating being switched off accidentally we normally add 2 on timers a day, one
at 3-00 am and one at 15-00 pm. This stops nuisance tripping, resets the unit after power cuts and
insures the cylinder is hot 24 hours a day. We don’t normally set any off times.
To set the cylinder up as above:
1. From the front screen press the gear button, scroll right > to schedule, press ok.
2. If any timers are showing highlight them and select delete. When no timers are shown we can
add some new ones.
3. Highlight + add schedule, press ok
4. Highlight daily schedule, press ok
5. Type - quiet will show, press v to DHW, do not use quiet
6. Press > press ^ to set to Standard, press >, adjust hour to 3, am press ok
7. Scroll up ^ to + add a timer
8. Highlight + add schedule, press ok
9. Highlight daily schedule, press ok
10. Type quiet will show, press v to DHW, do not use quiet
11. Press > press ^ to set to Standard, press >, adjust hour to 3, pm press ok
Heating & Hot Water Installation
Field settings for Hot Water
11. Then v to 30** DHW, press ok, 3011 will be highlit Domestic hot water tank , press OK
12. Press v, to hysteresis thermo off, press ok
13. Go to 302* heat pump, press ok, press v 5 times to 3025 Max DHW operating time, press ok
14. Use ^ and v to set to 60 mins for 200 litre or 90 mins for 300 Litre cylinders, press ok
15. Press v to 303* booster heater, press ok.
16. Press v to 3032 delay time, press ok, use ^ and v to set to 30 mins, press ok then return
17. Press v to 304* disinfection, press ok
18. Press v to 3042 interval, press ok, press ^ or v to get to Tue, press ok
19. Press v to 3043 start time, press ok, use ^ and v to set to 3am, press ok.
20. Press v to 3044 target temp, press ok, use ^ and v to set to 60°C, press ok
21. Press v to 3045 duration, press ok, use ^ and v to set to 10 mins, press ok.
22. Press return nine times to return to the normal screen
The cylinder maintains the tank within 5°C of set point. It heats the cylinder for the max time adjusted in line 14. To begin with it uses just
the heat pump, but after the time set in line 16 the immersion comes in to help.

Checking flow rate
First you need to clean the filter balls. Shut the valve, undo the back of the valve, remove the strainer,
clean it and replace it then open the valve.
Start the pump, see above, the unit will be running in heating mode. Check the flow rate, we need
12l/min on the 5kW unit, 20l/min of flow on the 8kW unit and 30l/min on the 12 and 16kW unit. If
there is not enough flow the unit will never operate and it will give fault E911 see fault code page.
If you look into the flow meter you can see the flow in litres per minute. The flow rate is the low
figure, in this picture you can see a flow rate indicated, this shows 0l/min NOT 16l/min. Make sure
you clean the filter ball, turn up all the pumps, open all the valves and get rid of the air to keep flow
rate up.
To exit test mode press return 4 times to get back to the normal screen
Use of self-test mode
1. Press OK to wake the controller up.
2. Press ^ and v together for 6 seconds, password shows you need
to set 0202.
3. Press >, then ^ twice, > twice, ^ twice then press OK
4. Press v 7 times to self-test mode, press ok
5. Press v to water pump press > the main water pump will come on,
leave it on.
6. Press v to booster heater, press > to switch it on, this is the
immersion heater in the tank, check it works, press < to switch it
off again.
7. Press v to DHW (3 port valve) this is the hot water valve, it will be
closed, check it, press > to on, the valve will open, check it, press
> to close it again.
8. Press v to Zone 1 valve this is the heating valve before the header
or plate hex, it will be open, check it, press > to on, the valve will
now close, check it, press > to open it again.
9. Now check the flow rate as per instructions below
0
Please enteryour PASSWORD
Service mode
Service mode
Reset All Service Mode
Power Master Reset
ODU K3 Reset
Field Setting Value
Self-Test Mode
Indoor Unit Option
Testing the Unit

21
Starting the unit in heating mode
Press the left button so the Zone is highlit in blue, press the power button a temperature will show
will show, the unit is automatic mode using an external run signal. Turn up your thermostats or
underfloor heating to send a run signal to the unit, the display will change to set 0.0c the pump will
start within 3 minutes. The compressor in the outdoor unit starts after 3 minutes, the pipework will
begin to heat up.
If you press the ok button, you can see the water outlet flow temperature rising.
If the outdoor unit doesn’t start after 5-minutes, see problems page.
Over time the unit will warm up, now check all the radiators or under floor loops are hot as well.
Starting the System in hot water mode
Clean the filter balls again.
Press return to get to the normal screen. With the zone hi lit in blue press the power button, heating
will stop. Now press > to highlight the DHW and press the power button again.
The DHW will start the display will show 48°C set standard
Press ok
The cylinder set temperature and current temperature will show.
To adjust the temperature press ^ and v set it to 48°C.
Press ok to switch between standard , eco (cold water) and boost only used in emergency’s.
The heat pump will start heating the cylinder if its colder than 43°C and will heat it up to 50°C then it
will stop. The unit will take up to 6 minutes to start in Hot water mode, be patient
When the unit is heating the cylinder, the HW valve will open but the heating valve will not close for
40 seconds, this is normal.
Run test in hot water mode
Make a note of the hot water cylinder temperature, after 15 minutes of running check the hot water temperature again, it should have
risen, again note the temperature. If the unit is running well it should heat the cylinder to 48°C without needing the immersion heater.
Now clean the filter ball again.
The Water storage temperature is lower (48°C) than a normal cylinder. It’s important to check that any shower or bath mixers do not
further reduce the water temperature. Using your thermometer check that the hot water comes out the tap
Now handover the system to the end user, see page 6-8, fill in the warranty card on page 4 and online. Your system is now fully
commissioned, congratulations.
Starting the Unit

More Advanced Testing
How to read the flow rate from the controller.
1. Press OK to wake the controller up.
2. Press ^ and v together for 6 seconds, password shows you
need to set 0202.
3. Press >, then ^ twice, > twice, ^ twice then press OK
4. Press v to indoor zone option, press ok
5. Press v to indoor status information press ok
All the sensors are listed including flow sensor.
Press return 4 times to return to normal screen.
More advanced testing
In the service menu:
6. Press ok to wake the controller up.
7. Press ^ and v together for 6 seconds, password shows you
need to set 0202.
8. Press >, then ^ twice, > twice, ^ twice then press OK
9. Press v 9 times to Self test mode, press >
10. You can see all the sensors on the unit at once
Resetting the controller back to factory settings
1. Press ok to wake the controller up.
2. Press ^ and v together for 6 seconds, password shows you
need to set 0202.
3. Press >, then ^ twice, > twice, ^ twice then press OK
4. Press v until you get to reset all service modes, press ok.
5. Erase all service modes, ok
6. Erase all service mode data, press ok
7. Initialize remote controller, press ok
8. The controller goes blank for 30 seconds and then wakes up
completely blank but….
9. All field settings will still stay on the pcb.

00 shows on the remote controller
00 shows when the MIM control box is first powered up it means the MIM PCB has activated but no
outdoor unit can be seen. Check the F1 F2 wiring is ok between the outdoor and indoor unit and
check the outdoor unit has power.
01 shows on the remote controller
01 means that the remote controller has power and it can see the outdoor unit too, this is good, in a
few seconds this will disappear.
E911 low flow alarm
If your flow rate is good (see above) but you see an E911 low flow alarm you need to test your flow
switch.
E911 is not a fault, it’s a warning, it stops the unit because the water is moving too slowly through the
system. With the pump running test the flow rate see page 20 and 22
If your flow rate is less than recommended you need to turn up the pumps, open any valves that might
be closed, clean filters and get rid of any air. The unit MUST have he correct flow rate before it will try
to run. Also check the flow switch is in the right way round (there is an arrow on it) and its plugged in.
Cold Weather Protection, my unit won’t start
Check the flow temperature see page 20. If this is below 10°C the compressor will not start.
If you are commissioning the unit from cold
You must warm up the water to get the unit to run, the easiest way to do this is to add a cylinder and
use the immersion to warm up the cylinder first, the warm water from the cylinder will preheat the
heat pump and it will start to operate.
Troubleshooting

E904
Indicates a problem with the blue hot water cylinder sensor E904 only shows if field setting 3011 is set
to 1 (unit has a hot water cylinder)
To test this sensor, press the view button until the tap icon appears, this will show the temperature
its measuring, if this reading is -50 the sensor is not plugged into the yellow socket on the control box
PCB
E101, E102, E201
E101 shows on the indoor unit remote controller if the indoor unit cannot see the outdoor unit.E202
shows on the outdoor unit if it can’t see the indoor unit This error appears if the power has been reset
to either unit or the outdoor unit is not on.
First wait 3 mins to see if the error disappears, if not remove the cover of the outdoor unit (the one
with Samsung written on it) and check the outdoor PCB display is lit up, If its not there is no power to
the outdoor unit.
If there is power at the outdoor unit check F1 F2 cable is connected to the indoor PCB and the outdoor
unit correctly, the cable must have no breaks or switches in it. If the cable is ok, it’s possible one of the
PCBs is at fault. The hardest thing for an engineer to do is work out which end has the communication
error.
In the middle of the control box (indoor unit) PCB there are two LEDs, the red one shows the
communication leaving the control box, the orange / green led shows the communication coming
back from the outdoor unit. If there is a comms error E201 one or both of the LEDs will not be lit
indicating which PCB is at fault.
E919 legionella failure
If the cylinder does not reach the legionella set temperature in 8 hours, E919 shows on the screen. The immersion heater is switched off
automatically. The unit stops. If you reset it (press on off) the unit will run for another week then trip again.
Check 3041 =1, 3042 = Wednesday, 3043 =3AM, 3044 = 60°C
Check the immersion works, check the tank sensor is in the tank 100mm and is above the immersion heater. Check the tank thermostat
on the immersion is set to above 60°C.
Every Samsung heat pump fault code is now available on YouTube, search freedom heat pumps and the fault code and a simple to use
video will show you what you need to know.
Troubleshooting