Transcript Owner's/2009 Samsung Troubleshooting Guide

Samsung Mini Splits
2008 AQV, EH, DH and FJM Inverter
Troubleshooting
Sept 11 2008
Troubleshooting
• Units use either the
operating lights on the
Indoor (High Wall) or fault
codes on the wired
remote controller
OR
• 3 LED’s on the Outdoor
unit PCB to show what
fault has occurred, error
codes can be seen on
both main PCB and also
test operation PCB
LED’s
High Wall Indoor Error Codes
Indoor Error Codes in detail
• Room Temp Sensor error – unit cannot read the resistance of
the sensor, check with Multi meter
60 DegF = 14,200Ω
70 DegF = 11,700Ω
80 DegF = 9,300Ω
• Coil (Heat Exchanger) Temp Sensor error – unit cannot read
the resistance of the sensor, check with Multi meter
30 DegF = 28,500Ω
40 DegF = 23,000Ω
50 DegF = 18,000Ω
The higher the resistance the colder the temperature that the
sensor thinks it is seeing
Indoor Error Codes in detail
• Indoor Fan Motor error – the RPM sensor reads a
speed below 380 RPM
Check connections from Indoor PCB to fan motor
Check voltage from CN72 on PCB to fan motor –
approx 180V
• EPROM/Option Code error – PCB memory is
corrupted or wiped out, possibly due to voltage spike
(thunderstorms etc) or low voltage condition
Reprogram unit using Remote controller
• Outdoor unit Error – See specific error code on
Outdoor unit
Outdoor Unit Error Codes
Y
G
R
Explanation
○
○
⊙
IPM Over Current (O.C)
○
⊙
●
Normal Operation
○
⊙
○
Comp Starting error
○
●
○
Comp Lock error
○
●
⊙
DC-Link voltage under/over error
⊙
○
⊙
Outdoor temp sensor error (Dual/Single)
⊙
○
●
Discharge over temperature (Dual/Single)
⊙
⊙
○
Discharge temp sensor error (Dual/Single)
⊙
⊙
●
Current sensor error
⊙
●
○
Comp V-limit error
⊙
●
⊙
Coil temp sensor error (Dual/Single)
⊙
●
●
1min. Time out Comm. Indoor <-> Outdoor)
●
○
○
Fan error
●
○
⊙
OTP error
●
○
●
Comp rotation error
●
⊙
○
Operation condition secession (Dual only – not on
AQB/v/EH units
● ON
●
⊙
⊙
DC-Link voltage sensor error
⊙ BLINK
●
⊙
●
I_Trip error / PFC Over current
●
●
○
Refrigerant Leak error (Dual/Single)
●
●
⊙
AC Line Zero Cross Signal out
⊙
○
○
Capacity mis-match
○ OFF
Outdoor Error Codes in detail
• IPM Over Current – Also E464
• Compressor is drawing excessive current, unit will restart 9
times before error code is seen
• What are we protecting – Compressor Motor & IPM Semi
Conductor
Causes –
Outdoor Error Codes in detail
IPM Over Current Error / OC error (E464)
Causes
Indoor air flow blocked in heating mode by
blade closing, covering air inlet with curtain,
etc.
OC signal
OC
Level
Motor
Current
IPM OFF &
Motor Stop
Compressor motor or wiring short circuit,
Compressor wires disconnecting from the
compressor connector during rotation
Compressor lock, Compressor magnet
demagnetizing
Compressor rotation error,
High compressor load in low speed
operation
OC
Level
Ed
U+
D
C
V
V+
W+
V
U-
V-
W-
IPM ( IGBT module )
PCB short circuit, IPM breakdown,
Compressor Motor
U
W
Outdoor Error Codes in detail
• Comp Starting Error (E461)–
• Compressor does not start, it has 15 seconds to start and will
try 5 times to start
TIMING
CHART
Motor
Current
Froce Allignment
syncronizing
acceralation
charge up
Sensorless
1sec
1.5s
mode
2sec
Fix ing Rotor
2Hz
Speed
8Hz
Outdoor Error Codes in detail
• Comp Starting Error (E461)
• Cause :
• Compressor wire trouble (disconnect etc.)
• Cycle pressure unbalance at the compressor
( Pressure difference between discharge and suction )
• Compressor trouble ( locking)
• PCB trouble (IPM open mode failure etc.)
Outdoor Error Codes in detail
• Compressor Lock Error
• Compressor is not running despite being energized. The
compressor has a rotational sensor that will tell the unit if it is
running or not
Unit will try to restart 3 times before displayed error code (each
restart will have a 3 minute time delay)
Causes – failed Compressor, liquid slugging
Outdoor Error Codes in detail
• DC Link Voltage Under/Over – Voltage across C101, 102 &
103 on the Outdoor PCB is out of range
Causes – Mains voltage spikes or brown outs, Compressor
slugging liquid, bad Outdoor PCB
• Outdoor Temp Sensor Error – unit cannot read the
resistance of the sensor, check with Multi meter – same curve
as Indoor Temp sensors
40 DegF = 23,000Ω
60 DegF = 16,200Ω
80 DegF = 9,300Ω
Outdoor Error Codes in detail
• Discharge Over Temp Error – Discharge temperature is out
of range, if it is too high this can damage the oil and the
compressor
Causes – Undercharge, Refrigerant leak, failed EEV
To check EEV use a multi meter to check the resistance of the
EEV solenoid coil – it has 6 separate taps which allow it to
have 480 steps of movement
BROWN - ORANGE
COIL resistance
46±2Ω(68F)
BROWN - YELLOW
GRAY - BLACK
GRAY-RED
Outdoor Error Codes in detail
• Discharge Temp Sensor Error – unit cannot read the
resistance of the sensor, check with Multi meter
100 DegF = 124,000Ω
120 DegF = 85,000Ω
140 DegF = 59,000Ω
• Current Sensor Error – Current draw of the unit is excessive,
especially on initial start up
Causes – Mains Power problem, Outdoor Coil blocked or bad
Outdoor fan motor, low refrigerant charge, locked Compressor
Outdoor Error Codes in detail
• Comp V Limit Error –
• High capacity load on the system but compressor is running
below 780RPM although controller is trying to speed up the
compressor
Unit will restart 9 times to try and clear the fault before showing
the error code, each restart will have a 3 minute time delay
before the next start
Causes – High discharge pressure, possible overcharge
Outdoor Error Codes in detail
• Coil Temp Sensor Error – unit cannot read the resistance of
the sensor, check with Multi meter – Same curve as Indoor coil
temp sensor
60 DegF = 16,200Ω
80 DegF = 9,300Ω
100 DegF = 6,300Ω
• Outdoor Fan Error – Outdoor fan motor is not operating
Causes – Bad Outdoor fan motor, Obstruction, check for 220V
AC Output to fan motor from Outdoor PCB (Blue & Red)
Outdoor Error Codes in detail
• OTP Error –
• Outdoor unit PCB has an incorrect or has lost it’s program
Causes – Bad Outdoor PCB, Mains Voltage issues
Outdoor Error Codes in detail
• Comp Rotation Error (E467)
• Compressor is not running, will restart 3 times to clear the fault,
each start will have a 3 minute time delay before displaying the
error code
• Failure of BLDC motor rotation control.
• Over load condition and unable to make enough torque to
rotate.
• Or the sensorless position detection system cannot detect rotor
position during rotation
• Restart will be in 3 minutes but 3 times stop makes Error.
Outdoor Error Codes in detail
• Comp Rotation Error (E467)
• Cause :
• Cycle Overload (possible overcharge)
• Mains Power voltage changes quickly
• Cycle load changed quickly
• Compressor is bringing liquid back
• Compressor locked or motor magnet demagnetizing
• PCB trouble
Outdoor Error Codes in detail
• Comp Rotation Error
(E467)
Compressor Motor Torque calculated from
Pressure of discharge and suction
Pd
Ps
Outdoor Error Codes in detail
• Refrigerant Leak Error – Unit will recognize that performance
and temperatures are not consistent with load or compressor
speed
Causes – Refrigerant undercharge for specific line set length
or a leak has lost refrigerant
Outdoor Error Codes in detail
DC-Link voltage under/over Error
(E466)
Meaning :
DC-Link voltage drop or up with some reason during operation.
System stops the compressor immediately.
Restart will be in 3 minutes but no retry limit.
Error shown on outdoor unit only.
Protection purpose :
Rotation trouble
Cause :
Power line voltage changes quickly.
Power line disconnect during compressor running. Ed
Lightning surge noise.
D
Compressor liquid back. Compressor trouble.
C
PCB trouble.
V
U+
V+
W+
Compressor Motor
V
U-
V-
W-
IPM ( IGBT module )
U
W
Outdoor Error Codes in detail
Communication Error
(E101, E202)
Meaning :
Unable to communicate between Indoor unit and Outdoor unit
for 1 minute.
Cause :
Communication line trouble.
(Off the wire from terminal, snapping of the wire )
Miss wiring between Indoor unit and Outdoor unit
Blowing the fuse in the controller.
PCB trouble.
WRONG OPTION CODE setting
Outdoor Error Codes in detail
• I Trip Error – Unit current draw is too high, compressor will try
to slow down to reduce current draw, unit will restart 3 times
before displaying error code
Causes – Indoor/Outdoor temperature changes, Low mains
Voltage, excessive capacity load on the unit
Outdoor Error Codes in detail
• AC Line Cross Signal Error – AC Line is checking incoming
power frequency 50 or 60 Hz
Causes – Bad Outdoor PCB, unless unit has been resold to a
Caribbean beach hut!
• Capacity Mis-Match Error – Indoor and Outdoor unit do not
communicate properly, possible mis-match of e.g. 18k Indoor
Unit with a 24k Outdoor unit
Causes – Incorrect Option code flashed to the Indoor unit,
reprogram the Option code at the Indoor unit, bad
Indoor/Outdoor PCB
FJM Error Codes in detail
• E161 – Mixed Use error code : One Indoor unit is programmed
for Heating, when other units on the system are operating in
Cooling. System will not reset itself until unit with conflicting
mode has been turned off
• E190 – Failure of Pipe Check : Check wiring/piping and
addressing of the Indoor units
• E199 – Tracking is complete, ready for Pipe Check
• E201 – Number of Indoor units set on the rotary dial (Outdoor
unit) does not match number of Indoor units tracked on the
system
• After correcting these errors button K3 will reset the system
Warranty
•
•
•
•
Since 2006 units have warranty coverage of
5 Years Compressor
3 Years on all other Parts
120 Days Limited Labor Warranty
• Parts are shipped out, usually on the same
day using an ground service. This is
dependant on a completed warranty
claim form being received by Quietside
• The failed part need not be returned to
Quietside unless specifically asked for
Literature Available
Sales brochure (Color)
Product Submittals
Basic Application and Technical Guide & Samsung 108,
teaching sizing, usage and basic installation techniques
Warranty Booklet – Everything about Warranty
Installation and Operation Manuals
Service Manuals – very important as these units are self
diagnostic
Support Available
Sales Support
Local Representation
Quietside sales staff
Regionalized
Customer Support
Technical Support
East Coast
717 243 2535
Denis, Mike, Chris
West Coast
562 699 6066
John, Stu, Kevin
Website : www.Quietside.com
Thanks for attending
Any Questions??????????