Foster FD2-10 Service Manual

Page 1
FD2-10 Controller with LCD5S Display
English
Original Service Manual
A Division of ITW Ltd
Foster Refrigerator
Oldmedow Road
King’s Lynn
Norfolk, PE30 4JU
March 2014 Issue 1
Call: +44 (0)843 216 8800 Fax: +44 (0)843 216 4700 Email: support@foster-uk.com
www.fosterrefrigerator.co.uk
United Kingdom
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Manual Information & Health & Safety Notes
1
Environmental Management Policy
2
Disposal Requirements & Electrical Safety
2
Start up, Display Icons & Switches
3
Start Sequence, Standby, Access to the Information Menu, Set Point, Keypad Security, Light Settings
4
Defrost, FD2-10 Controller Technical Data & Configuration of Parameters
5
Controller Default & Individual Parameters Explained
6 to 11
Cabinet & Counter Technical Data
12
Wiring Diagrams
13 to 19
Troubleshooting & Notes
20 to 23
Make sure the power supply is turned off before making any electrical repairs.
To minimise shock and fire hazards, please do not plug or unplug the unit with wet hands.
During maintenance and cleaning, please unplug the unit where required.
Care must be taken when handling or working on the unit as sharp edges may
cause personal injury, we recommend the wearing of suitable PPE.
Ensure the correct moving and lifting procedures are used when relocating a
unit.
Do NOT use abrasive cleaning products, only those that are recommended. Never scour any parts of the refrigerator. Scouring pads or chemicals may cause damage by scratching or dulling polished surface finishes.
Failure to keep the condenser clean may cause premature failure of the motor/compressor which will NOT be covered under warranty policy.
Do NOT touch the cold surfaces in the freezer compartment. Particularly when hands are damp or wet, skin may adhere to these extremely cold surfaces and cause frostbite.
Please ensure the appropriate use of safety aids or Personnel Protective Equipment (PPE) are used for you own safety.
The products and all information in this manual are subject to change without prior notice. We assume by the information given that the person(s) working on these refrigeration units are fully trained and skilled in all aspects of their workings. Also that they will use the appropriate safety equipment and take or meet precautions where required. The service manual does not cover information on every variation of this unit; neither does it cover the installation or every possible operating or maintenance instruction for the units.
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If not disposed of properly all refrigerators have components that can be harmful to the environment. All old refrigerators must be disposed of by appropriately registered and licensed waste contractors, and in accordance with national laws and regulations.
Foster Refrigerator recommends that the equipment is electrically connected via a Residual Current Device; such as a Residual Current Circuit Breaker (RCCB) type socket, or through a Residual Current Circuit Breaker with Overload Protection (RCBO) supplied circuit.
Product Support and Installation Contractors.
Foster Refrigerator recognises that its activities, products and services can have an adverse impact upon the environment. The organisation is committed to implementing systems and controls to manage, reduce and eliminate its adverse environmental impacts wherever possible, and has formulated an Environmental Policy outlining our core aims. A copy of the Environmental Policy is available to all contractors and suppliers upon request. The organisation is committed to working with suppliers and contractors where their activities have the potential to impact upon the environment. To achieve the aims stated in the Environmental Policy we require that all suppliers and contractors operate in compliance with the law and are committed to best practice in environmental management. Product Support and Installation contractors are required to:
1. Ensure that wherever possible waste is removed from the client’s site, where arrangements are in
place all waste should be returned to Foster Refrigerator’s premises. In certain circumstances waste
may be disposed of on the client’s site; if permission is given, if the client has arrangements in place for
the type of waste.
2. If arranging for the disposal of your waste, handle, store and dispose of it in such a way as to prevent its escape into the environment, harm to human health, and to ensure the compliance with the environmental law. Guidance is available from the Environment Agency on how to comply with the waste management ‘duty of care’.
3. The following waste must be stored of separately from other wastes, as they are hazardous to the environment: refrigerants, polyurethane foam, and oils.
4. When arranging for disposal of waste, ensure a waste transfer note or consignment note is completed as appropriate. Ensure that all waste is correctly described on the waste note and include the appropriate six-digit code from the European Waste Catalogue. Your waste contractor or Foster can provide further information if necessary.
5. Ensure that all waste is removed by a registered waste carrier, a carrier in possession of a waste management licence, or a carrier holding an appropriate exemption. Ensure the person receiving the waste at its ultimate destination is in receipt of a waste management licence or valid exemption.
6. Handle and store refrigerants in such a way as to prevent their emission to atmosphere, and ensure they are disposed of safely and in accordance with environmental law.
7. Make arrangements to ensure all staff who handle refrigerants do so at a level of competence consistent with the City Guilds 2079 Handling Refrigerants qualification or equivalent qualification.
8. Ensure all liquid substances are securely stored to prevent leaks and spill, and are not disposed of into storm drains, foul drain, or surface water to soil.
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Symbol
Reason
Button
Use
Alarm
Info / Set Point Button
Thermostat Output
Manual Defrost / Decrease Button
Fan Output
Increase Button / Manual Activation
Defrost Output
Stand-by Button
Activation of 2nd parameter set
Symbol
Reason
Symbol
Reason
Defrost in progress
Condenser high pressure alarm
Controller in stand-by
Room high temperature alarm
Condenser clean warning
Room low temperature alarm
Door open alarm
Probe T1 failure
Condenser high temperature alarm
Probe T2 failure
Instant probe 1 temperature
Minimum probe 1 temperature recorded
Instant probe 2 temperature*
Compressor working weeks**
Instant probe 3 temperature*
Keypad state lock
Maximum probe 1 temperature
recorded
After unpacking, clean and allow the cabinet to stand for 2 hours before turning on
.
For units that have been delivered outside the UK, please remove the compressor strap as instructed on the front of the unit, before connecting the unit to the mains supply.
Ensure the cabinet is situated away from both hot and cold air sources, as this will affect its performance. Make sure that a minimum clearance of 150mm above the cabinet is available for ventilation and effective operation. Connect the unit to a suitable mains power outlet and turn the supply on. Do not plug or unplug the unit with wet hands.
After connecting the unit to the mains the display will briefly show a dash in the centre of the screen. This will then show
Indicators and Buttons
Display & Information Icons
During normal operation, the display shows either the temperature measured or one of the following indications:
* Displayed only if enabled (see configuration parameters)
** Displayed only if ACC > 0
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For normal operation
Press and hold the button for 3 seconds then release. The current cabinet temperature will be
displayed.
If pressed and held for 5 seconds then released this will start the ‘Test Sequence’ . The test function is a defined sequence of events that will follow a prescribed pattern (dependent upon
parameter values) that will operate all electrical elements of the system, simulating a short operating pattern. It should enable an engineer to carryout basic function operations checks of all system parts including refrigeration. This sequence can take, and the display will count up to, a maximum of 935 seconds before showing ’. The length of time the test is run will be dependent on the model type and conditions the unit is placed in. After showing ‘ ’ the controller will wait for 1 min, then resume normal operation and show the current temperature of the unit.
To cancel the test sequence prior to completion, press and release .
When pressing the button for 3 seconds, the unit will enter the standby mode and display (unless already in standby and then this will energise the controller to show the current unit temperature). This indication will be displayed while the unit is not operating but the mains power is applied to the unit. This mode may be used for interval cleaning regimes and short periods when the unit is not required. For extended periods of inactivity the mains supply should be isolated.
Press and immediately release the button. Using the and or buttons select the data you wish to display Press the button to display the current value. To exit press the button or wait 10 seconds.
To reset the THI and TLO:
Use the and or buttons to select the data to be reset Display the value with the button While keeping the button pressed, press the button to reset.
Press button and hold for half a second. By keeping button pressed, use and or buttons to set the desired value (adjustment is
within the minimum SPL and the maximum SPH limit)
When button is released, the new value is stored.
The keypad lock avoids undesired, potentially dangerous operations, which might be attempted when the controller is operating in a public place. In the INFO menu, set parameter = YES to inhibit all functions of the button. To resume normal operation of keypad, adjust setting so that = NO.
Where fitted the light can be turned on or off by pressing and releasing the button.
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Power Supply
230Vac±10%, 50/60Hz, 3W
Measurement Range
-50…120°C, -55…240°F
-50 / -9.9…19.9 / 80°C (NTC 10K Only)
Relay Output Max Load (230Vac) Compressor – 16(8) A 240Vac Defrost - 16(4) A 240Vac Evap. Fan - 16(4) A 240Vac Auxiliary Loads 1 - 8(2) A 240Vac
Measurement Accuracy
<0.5°C within the measurement range
Operating Conditions
-10 … +50°C; 15% … 80% r.H
Input – NTC 10KΩ @ 25°C
Controller Approvals
EN60730-1; EN60730-2-9 EN55022 (Class B) EN50082-1
Automatic Defrost
Defrost starts automatically as soon as the time set with parameter DFT has elapsed.
Time Defrost With DFM = TIM defrost takes place at regular intervals when the timer reaches
the value DFT. For example, with DFM = TIM and DFT = 06, a defrost will take place every 6 hours.
Defrost time count backup At power restoration, if DFB = YES, the defrost timer resumes the
time count from where it was prior to the power interruption. If DFB=NO, the time count re-starts from 0. In stand-by the accumulated time count is frozen.
Defrost Type When defrost has started, compressor and defrost outputs are controlled according to the parameter DTY. If FID = YES, the evaporator fans are active during defrost.
Resuming Thermostatic Cycle
When defrost is complete, if DRN is greater than 0, all outputs will remain off for the DRN minutes.
Manual Defrost
To initiate a manual defrost press and hold the defrost button for 2 seconds.
Parameters should not be changed unless you have an understanding of their purpose and the following instructions are fully understood.
To gain access to the parameters access the configuration menu by pressing + together for 5
seconds.
The first parameter will show on the display. Using the and or buttons select the required parameter. Press the button to display its current value. While keeping pressed, use the and or buttons to set the new desired value. On releasing the new value will be stored and the next parameter will display. To exit this mode or revert to normal operating mode, press or wait for 30 seconds.
If at any point no buttons are pressed for 30 seconds, without saving a new value, the display will return to the standard temperature display.
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Parameter
Range
Description
Foster FD2-10
SCL
Readout Scale:
2°C
1°C
Range -50/-9.9…. 19.9/80°C (With INP = SN4 Only)
2°C
Range -50 …. 120°C
°F
Range -55 …. 240°F
SPL
-50 … SPH
Minimum Limit for SP setting
1
SPH
SPL …120°
Maximum limit for SP setting
3
SP
SPL … SPH
Temperature set point to be achieved
2
C-H
Temperature Control mode:
REF
REF
Refrigeration
HEA
Heating
HYS
1 … 10°
Off/On Thermostat differential
3
CRT
0 … 30min
Compressor Rest Time
2
CT1
0 … 30min
Thermostat run time with faulty T1 (CT1 = 0 output with faulty T1 will always be off)
6
CT2
0 … 30min
Thermostat off time with faulty T1 probe. (CT2=0 & CT1 = >0 output with faulty T1 will always be on
4
CSD
0 … 30min
Compressor stop delay after door has been opened (Only if DS – YES)
1
DFM
Defrost Start Mode:
TIM
Non
Defrost function is disabled
TIM
Regular time defrost
FRO
Defrost time elapses only in condition of frost accumulation
DFT
0…99 Hours
Time interval between defrosts
6
DFB
Defrost timer clock
YES
YES
Following mains interruption, timer resumes count
NO
Following mains interruption, timer restarts from zero
DLI
-50.. 120°
Defrost end temperature (Only if T2 = EPO)
N/A
DTO
1 … 120min
Maximum defrost duration
20
DTY
Defrost Type:
OFF
OFF
Timed off cycle defrost (compressor and heater off)
ELE
Electric heater defrost (compressor off, heater on)
GAS
Hot gas defrost (compressor and heater on)
DPD
0 … 240 sec
Evaporator pump down. Timed pause at start of defrost
0
DRN
0 … 30min
Drain down period
2
DDM
Defrost display mode:
DEF
RT
Real (actual) air temperature
LT
Last temperature display before start of defrost
SP
The current set point value.
DEF
“DEF”
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7
DDY
0… 60 min
Defrost display delay period Time DDM is shown following defrost termination
10
FID
Fans in defrost:
YES
YES
Fans run during defrost
NO
Fans do not run during defrost
FDD
-50 … 120°
Evaporator fan restart temperature following defrost (Only if T2 = EPO)
5
FTO
0…120 min
Maximum evaporator fan stop period following defrost
3
FDS
0…120 sec
Minimum evaporator fan stops (following door opening etc.)
20
FCM
Evaporator fan mode during thermostatic control:
TIM
NON
Fan(s) run continuously
TMP
Temperature based control. When compressor is on, fans are on. When compressor is of, fans run as long as temperature difference Te-Ta > FD. Fans on again with FDH
Tim
Time based control. When compressor is on, fans are on. When compressor is off, fans in accordance to parameters FT1, FT2 and FT3.
FDT
-120 … 0°
Te-Ta difference for fans to turn off after compressor stopped. (Only if T2 = EPO and FCM = TMP)
-1
FDH
1 … 120°
Temperature differential for evaporator fan restart. (Only if T2 = EPO and FCM = TMP)
3
FT1
0 … 180 Sec
Fan stop delay after compressor stop.
15
FT2
0 … 30min
Timed fan stop following T1 (With FT2 = 0 the fans remain on all the time).
3
FT3
0 .. 30min
Timed fan run following FT2 (With FT3 = 0 and FT2 >0 the fans remain off all the time.
2
ATM
Alarm threshold configuration:
REL
NON
All temperature alarms are inhibited
ABS
The value set in ALA and AHA represent actual alarm set points
REL
The values set in ALR and AHR are alarm differentials which relate to SP and SP + HYS
ALA
-50 … 120°
Low temperature alarm threshold
AHA
-50 … 120°
High temperature alarm threshold
ALR
-12 … 0°
Low temperature alarm differential (With ALR = 0 the low temperature alarm is excluded)
-5
AHR
0 … 12°
High temperature alarm differential (With AHR = 0 the low temperature alarm is excluded)
5
ATI
Alarm probe:
T1
T1
Air temperature probe used for alarm detection
T2
Evaporator temperature probe used for alarm detection
ATD
0… 120min
Delay before alarm temperature warning
90
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8
ADO
0… 30min
Delay before door open alarm warning
8
AHM
Operation in case of high condenser alarm (T2 = CND)
NON
NON
High condenser temperature alarm inhibited
ALR
Condenser warning – ‘HC’ displayed, alarm sounds
STP
As ‘ALR’ with compressor stopped and defrosts suspended
AHT
-50 … 120°
Condenser alarm temperature (T2 = CND)
65
ACC
0…52 Weeks
Condenser cleaning period. (With ACC = 0 condenser cleaning is disabled)
0
IISM
Switchover method to second parameter set:
HDD
NON
Second parameter set is excluded
MAN
Second parameter set is activated/ deactivated by button
HDD
Second parameter activated by ‘heavy’ usage
D12
Second parameter set activated by D12 input (D12 = IISM)
IISL
-50 . IISH
Minimum limit for IISP setting
1
IISH
IISL .. 120°
Maximum limit for IISP setting
1
IISP
IISP…IISH
Temperature set point to be achieved in ‘Mode 2’
1
IIHY
1 … 10°
Off/on thermostat differential in ‘Mode 2’
3
IIFC
Evaporator fan mode during ‘Mode 2’ thermostatic control:
NON
NON
Fans(s) run continuously
TMP
Temperature based control. When compressor is on, fans are on. When compressor is off, fans run as long as temperature difference Te-Ta>FDT. Fans on again with FDH
TIM
Time based control. When compressor is on, fans are on. When compressor is off, fans in accordance to parameters FT1, FT2 and FT3.
HDS
1 … 5
Controller sensitivity for switch over between ‘Modes’ and 2.
(1 = minimum, 5 = maximum)
3
IIDF
0 … 99hours
Time interval between defrosts in ‘Mode 2’.
6
SB
Standby button operation:
YES
YES
Standby button enabled
No
Standby button disabled
DS
Door switch operation (switch made when door closed):
YES
YES
Door switch enabled
NO
Door switch disabled
DI2
Configuration digital input operation:
NON
NON
Digital input 2 not activated
HPS
High pressure alarm when contact opens
IISM
‘Mode 2’ parameters active when contact closes
RDS
Defrost initiated when contact closes
DS2
Second door switch function (operated ‘in series’ with DS)
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LSM
Light control mode:
NON
NON
Digital input 2 not activated
MAN
Light output operation is activated/deactivated by button (With OA1 = LGT)
DOR
Light output is switched on when door is opened (With OA1 = LGT and DS = YES)
NDR
Light output is switched off when door is opened. (With OA1 = LGT and DS = YES)
OA1
Auxiliary relay operation:
NON
NON
Output disabled (always off)
0-1
Contacts open/close with standby/on mode
LGT
Output enabled for light control
AL0
Contacts open when an alarm condition occurs
AL1
Contacts close when an alarm condition occurs
(Relay contacts open when in standby mode)
INP
Temperature sensor(s) type:
SN4
SN4
10k NTC type thermistor (red writing)
ST1
1k PTC type thermistor (Black Writing)
OS1
-
12.5...12.5°C
Air temperature probe (T1) offset.
0
T2
T2 Probe function:
NON
NON
T2 Probe disabled
EPO
Evaporator temperature monitoring
CND
Condenser temperature monitoring
OS2
-
12.5…12.5°C
T2 probe temperature offset
0
TLD
1 … 30min
Delay for min (TLO) and max. (THI) temperature logging
10
SIM
0 … 100
Display Slowdown
5
ADR
1… 255
FD2-10 address for PC communication
1
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10 10
FD2-10 Default XR600H
XR1300H
XR600L
XR1300L
XR2H
& XR3H
AT
AW
AZ
BB
BD
Parameter
SCL
2oC
2oC
2oC
2oC
2oC
2oC
SPL
1
1 1 -21
-21
1
SPH
3
3 3 -15
-15 3
SP
1
1 1 -21
-21
1
C-H
REF
REF
REF
REF
REF
REF
HYS
4
3 3 3 3 3
CRT
2
2 2 2 2 2
CT1
6
6 6 6 6 6
CT2
4
4 4 4 4 4
CSD
1
1 1 1 1 1
DFM
TIM
TIM
TIM
TIM
TIM
TIM
DFT
6
6 6 6 6 6
DFB
YES
YES
YES
YES
YES
YES
DLI
20
20
20
20
20
20
DTO
20
20
20
20
20
20 DTY
OFF
OFF
OFF
ELE
ELE
OFF
DPD
0
0 0 0 0 0
DRN
2
2 2 2 2 2
DDM
DEF
DEF
DEF
DEF
DEF
DEF
DDY
10
10
10
10
10
10
FID
YES
YES
YES
NO
NO
YES
FDD
5
5 5 5 5 5
FTO
3
3 3 3 3 3
FDS
20
20
20
20
20
20
FCM
TIM
NON
NON
NON
NON
NON
FDT
-1
-1
-1
-1
-1
-1
FDH
3
3 3 3 3 3
FT1
15
15
15
15
15
15
FT2
3
3 3 3 3 3
FT3
2
2 2 2 2 2
ATM
REL
REL
REL
REL
REL
REL
Only visible with
ATM = ABS
ALA
-2
-2
-2
-2
-2
-2
AHA
8
8 8 8 8 8
Only visible with
ATM = REL
ALR
-5
-5
-5
-5
-5
-5
AHR
5
5 5 5 5 5
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AT
AW
AZ
BB
BD
ATI
T1
T1
T1
T1
T1
T1
ATD
90
90
90
90
90
90
ADO
8
8 8 8 8 8
AHM
NON
NON
NON
NON
NON
NON
AHT
65
65
65
65
65
65 ACC
0
0 0 0 0 0
IISM
HDD
NON
NON
NON
NON
NON
Only visible
when IISM is
changed from
NON
IISL
1
1 1 1 1 1
IISH
1
1 1 1 1 1
IISP
1
1 1 1 1 1
IIHY
4
4 4 4 4 4
IIFC
NON
NON
NON
NON
NON
NON
HDS
3
3 3 3 3 3
IIDF
6
6 6 6 6 6
SB
YES
YES
YES
YES
YES
YES
DS
YES
YES
YES
YES
YES
NO
DI2
NON
NON
DS2
NON
DS2
NON LSM
NON
NON
NON
NON
NON
NON
OA1
0-1
NON
NON
NON
NON
NON
INP
SN4
SN4
SN4
SN4
SN4
SN4
OS1
0
0 0 0 0 0
T2
NON
NON
NON
EVP
EVP
NON
Shows only if T2
is enabled
OS2
0
0 0 0 0 0
TLD
10
10
10
10
10
10
SIM
5
5 5 5 5 5
ADR
1
1 1 1 1 1
Yellow highlighted parameters show a difference from the default set parameter.
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Cabinet
Models
Gas
Hertz
Gas Charge
Compressor
Capillary
Defrost
Type
Power Consumption
Fuse
Rating
Watts
Amps
XR600H
R134a
50Hz
150 grams
EMT6160Z
0.042” ID x 2.7m Off Cycle
510
2.6
13 R134a
60Hz
150 grams
NEK6160Z
0.042” ID x 2.7m Off Cycle
510
2.6
13
XR600L
R404
50Hz
280 grams
NEK2168Z
0.042” ID x 2.7m
Hot Gas
610
3.2
13 R404
60Hz
280 grams
NEK2168GK
0.042” ID x 2.7m
Hot Gas
610
3.2
13
XR1300H
R134a
50Hz
420 grams
NEK6212Z
0.042” ID x 2.8m
Off Cycle
780
3.7
13 R134a
60Hz
420 grams
NEK62102
0.042” ID x 2.8m
Off Cycle
780
3.7
13
XR1300L
R404
50Hz
435 grams
NT2180GK
0.054” ID x 2.6m
Hot Gas
970
5.1
13 R404
60Hz
435 grams
NT2192GK
0.042” ID x 2.8m
Hot Gas
970
5.1
13
Counter
Models
Gas
Hertz
Gas Charge
Compressor
Capillary
Defrost
Type
Power Consumption
Fuse
Rating
Watts
Amps
XR2H
R134a
50Hz
240 grams
EMT6160Z
0.047” ID x 3.0m Off Cycle
425
2.1
13 R134a
60Hz
240 grams
NEK61602
0.047” ID x 3.0m Off Cycle
425
2.1
13
XR3H
R134a
50Hz
240 grams
EMT6160Z
0.047” ID x 3.0m
Off Cycle
515
2.6
13 R134a
60Hz
240 grams
NEK61602
0.047” ID x 3.0m
Off Cycle
425
2.1
13
Note: The Power Consumption values referred to as tested are to the ECA test standard. Actual power consumption will be greatly affected by ambient
temperature, loading, usage and cabinet maintenance.
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Problem
Possible Cause
Solution
Audible & Visual
Alarms/Warnings
> Low temperature alarm
> Cancel audible alarm and
investigate cause.
> High temperature alarm
> Cancel audible alarm and
investigate cause.
> T1 Air probe failure
> Check and replace the air
probe
> T2 Evaporator probe failure
#
> Check and replace the
evaporator probe
> Condenser clean warning
#
> Carry out cleaning regime on
the condenser. The timer is reset when power is removed and reset.
> Condenser high temperature
alarm#
> Clean condenser and ensure
ambient temperature is not too high.
> High pressure alarm
#
> Check ambient temperature
and refrigeration system.
> Door open alarm
#
> Press to silence alarm and
close the door. If the alarm persists and the door is closed check and replace the door switches.
#
only displayed if applicable to model and enabled through parameters
Compressor will not start
> No voltage in socket
> Use voltmeter to check
> Electrical conductor or wires may
be cut
> Use ohmmeter to check for
continuity
> Defective electrical component:
thermostat, relay, thermal protector etc.
> Replace defective component
> Compressor motor has a winding
open or shorted
> Measure ohmic resistance of
main and auxiliary winding using ohmmeter. Compare with correct values
> Compressor stuck
> Change compressor
> Temperature control contacts are
open
> Repair or replace the contacts
> Incorrect wiring
> Check wiring diagram and
correct
> Fuse blown or circuit breaker
tripped.
> Replace fuse or reset circuit
breaker
> Power cord unplugged
> Plug in power cord.
> Controller set too high
> Set controller to lower
temperature.
> Cabinet in defrost cycle
> Wait for defrost cycle to finish
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The temperature is too cold
> Controller is set at a very cold
position
> Set to warmer position and
check if the compressor stops according to controllers operating range.
> Controller does not disconnect
the condensing unit
> Check the insulation of the
thermostat. If problem persists, change the thermostat
> Control contacts are stuck closed
> Change the control. Check
amperage load
> Defective or incorrect
temperature control
> Determine correct control and
replace.
The temperature is not cold enough
> Controller is set at a very warm
position
> Adjust to colder setting
> Condenser is dirty
> Clean condenser
> The refrigerator has been placed
at an inadequate location
> The unit must not be near
stoves, walls that are exposed to the sun, or places that lack sufficient air flow.
> Compressor is inefficient or there
is a high pressure due to the air in the system
> If there is air in the system,
purge and recharge
> Iced up evaporator coil
> Check temperature control,
refrigerant charge, and defrost mechanism. Remove all ice manually and start over.
> Restriction in system
> Locate exact point of
restriction and correct
> The refrigerator has been used
improperly
> The shelves must never be
covered with any type of plastic or other material that will block the circulation of cold air within the refrigerator.
> Too many door openings
> Advise user to decrease if
possible
> Excessive heat load placed in
cabinet
> Advise user not to put in
products that are too hot.
> The refrigerator has been
overcharged with the refrigerant gas
> Check to see if condensation
or ice crystals have formed on the suction line. If so, charge with the correct amount of gas.
> The refrigerant gas is leaking
> Find the location of gas leak in
order to seal and replace the defective component. Change the drier. Perform a good vacuum and recharge unit.
> The evaporator and/or condenser
fans are not working
> Check electrical connections
and make sure that the fan
blade isn’t stuck. Replace the fan motor if it doesn’t work.
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> Blocking air flow
> Re-arrange product to allow
for proper air flow. Make sure there is at least four inches of clearance from evaporator.
> Fuse blown or circuit breaker
tripped
> Replace fuse or reset circuit
breaker.
Electrical Shocks
> Wires or electrical components
are in direct contact with metallic parts.
> Check for appropriate
insulation on the connections of each component.
Noise
> The refrigerator is not properly
levelled
> Check if the noise goes away
after you level the refrigerator
> The condenser is not fastened
correctly. Copper tubing is in contact with metal
> While the compressor is
working, check to see if metal parts are in contact with one another and/or if the screws that fasten the condenser are tightened.
> The evaporator and/or condenser
fans are loose
> Check if the fans are securely
fastened. Also, check if the fan blades are loose, broken or crooked. If so, change the faulty blade.
> Compressor has an internal noise
> If the noise persists after all
other measures have been taken, it may be originating from the compressor.
> Loose part(s)
> Locate and tighten loose
part(s)
Extreme condensation inside the refrigerator
> Controller is set at a very cold
position
> Set the controller to a warmer
position & check to see if compressor stops as should.
> The outside environment’s
relative humidity is very high (over 75%)
> This type of occurrence is
caused by local climatic conditions and not by the refrigeration unit.
> The refrigerator door won’t shut
completely
> Check the door and/or the
magnetic gasket. Adjust the door hinges if needed; replace the gasket if broken.
> The refrigerator had been placed
at an inadequate location
> The unit must not be near
sources that produce too much heat.
Condensing unit runs for long periods of time
> Excessive amount of warm
product placed in cabinet
> Advise user to leave adequate
time for products to cool down
> Prolonged door opening or door
ajar
> Advise user to ensure doors
are closed when not in use and to avoid opening doors for long periods of time.
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> Door gasket(s) not sealing
properly
> Ensure gaskets are snapped in
completely. Remove gasket and wash with soap and water. Check condition of gasket & replace if necessary
> Dirty condenser coil
> Clean condenser coil
> Evaporator coil iced over
> Unplug unit and allow coil to
defrost. Make sure thermostat is not set too cold. Ensure that door gasket(s) are sealing properly. Select manual defrost and ensure system works.
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Foster European Operations
France Foster Refrigerator France SA Tel: (33) 01 34 30 22 22. Fax: (33) 01 30 37 68 74. Email: info@foster-fr.com
Germany Foster Refrigerator Gmbh, Tel: (49) 781 990 7840. Fax (49) 781 990 7844. Email: info@foster-gmbh.de
Foster Refrigerator Oldmedow Road Kings Lynn Norfolk PE30 4JU
Tel: 0843 216 8833 Fax: 0843 216 4707 Website: www.fosterrefrigerator.co.uk Email: support@foster-uk.com
a Division of ‘ITW (UK) Ltd’
XTRA CAB & COUNT FD2-10/SM 03/14 V1 GB
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