Fisher & Paykel E522BRXU User manual

Service Manual
ACTIVE SMART
Refrigerator/Freezer
Ice And Water Models
E522BRXFDU, E522BRXU, E522BLXFDU, E522BLXU
PRODUCT CODES
22128, 22179, 22129, 22184,
22272, 22273, 22296, 22297
SERVICE SUPPLEMENT
517804 D

MARCH 2009
The specifications and servicing procedures outlined in this manual are subject to change without
notice.
The latest version is indicated by the reprint date and replaces any earlier editions.

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FISHER & PAYKEL
ACTIVE SMART ICE AND WATER
Fisher & Paykel Appliances
5800 Skylab Road
Huntington Beach
CA 92647
Telephone: [phone]
COPYRIGHT ©FISHER & PAYKEL LTD 2007 - ALL RIGHTS RESERVED

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CONTENTS
1ICE & WATER INTRODUCTION.............................................................................................7
1.1 Display Functional Schematic......................................................................................... 7
2DISPLAY INTERFACE FEATURES........................................................................................7
2.1 Display Interface Features (Products Before January 2009 ........................................... 8
2.2 Display Interface Features (Products after January 2009) ............................................. 8
2.3 Display Interface Button Description (Products before January 2009) .......................... 9
2.4 Display Interface Button Description (Products after January 2009) ............................ 10
2.5 Features (Products before January 20109) .................................................................. 11
2.5.1 Icemaker On/Off ...................................................................................................... 11
2.5.2 Freezer Chill Mode ................................................................................................ 131
2.5.3 Bottle Chill Mode...................................................................................................... 11
2.5.4 Water Dispensing .................................................................................................... 11
2.5.5 Measured Fill Water Dispensing.............................................................................. 11
2.5.6 Sabbath Mode ........................................................................................................ 12
2.5.7 Key silent mode ....................................................................................................... 12
2.5.8 Dispenser Lock ....................................................................................................... 12
2.5.9 Key Lock ................................................................................................................. 12
2.5.10 Filter Replacement Alert .......................................................................................... 12
2.6 Features (Products after January 20109) ................................................................ 13
2.6.1 Icemaker On/Off ...................................................................................................... 13
2.6.2 Freezer Chill Mode .................................................................................................. 13
2.6.3 Bottle Chill Mode...................................................................................................... 13
2.6.4 Water Dispensing .................................................................................................... 13
2.6.6 Sabbath Mode ......................................................................................................... 13
2.6.7 Key Silent Mode....................................................................................................... 14
2.6.8 Dispense Lock ......................................................................................................... 14
2.6.9 Key Lock .................................................................................................................. 14
3 ICEMAKER ................................................................................................................... 14
3.1 Ice Production.......................................................................................................... 14
3.2 Information About The Icemaker ............................................................................. 14
3.3 To manually Force Icemaker (Products before January 2009)................................ 15
3.4 To manually Force Icemaker (products after January 2009) ................................... 15
3.5 Ice Bin Full Sequence.............................................................................................. 15
3.6 Safety First............................................................................................................... 15
3.7 Key Presses (Products before January 2009) ......................................................... 16
3.8 Key Presses (products after January 2009)............................................................. 17
3.9 Temperature settings ............................................................................................... 17
3.10 Airflow ...................................................................................................................... 18
4DIAGNOSTIC ........................................................................................................................19
4.1 Diagnostics...............................................................................................................19
4.2 Fault Codes.............................................................................................................. 19
4.3 Icemaker fault codes ................................................................................................ 23
4.4 Icemaker Display Faults........................................................................................... 23
4.5 Testing Icemaker Sensor ......................................................................................... 24
4.6 Icemaker Sensor Resistance Table ......................................................................... 24
4.7 Testing Icemaker Motor ........................................................................................... 25
4.8 Water Valve Testing................................................................................................. 25
4.9 Wtesting of Flow Meter (Products before Jaunary 2009) ........................................ 25
5 DIAGNOSTIC MODES ..........................................................................................................26
5.1 Diagnostic Mode ...................................................................................................... 26
5.2 Input / Output Status ................................................................................................ 27
5.3 Fault History ............................................................................................................. 28
5.4 To Manually Force A Defrost ................................................................................... 28
5.5 To Manually Force A Harvest................................................................................... 28
5.6 LCD Display ............................................................................................................. 29
5.7 Data Download......................................................................................................... 29

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6WATER DISPENSER............................................................................................................29
6.1 Pressure Dispensing Pad ............................................................................................. 29
6.2 Initial Use ...................................................................................................................... 29
6.3 Measured Fill Use (Products before January 2009) .................................................... 30
6.4 Measured Fill Use (Products after January 2009) ........................................................ 30
6.5 Water Filter and Cartridge ............................................................................................ 30
6.6 Changing The Water Filter............................................................................................ 30
6.7 To Reset Filter Icon ...................................................................................................... 30
6.8 To Disable Filter Alarm (Products after January 2009)................................................. 30
6.9 To Disable Filter Alarm (Products before January 2009).............................................. 30
6.10 Flowmeter Calibration/Measured Fill Calibration (Products before January 2009) ...... 30
6.11 To Disable Filter Alarm (Products after January 2009) ................................................ 30
6.12 Noises........................................................................................................................... 31
7WIRING DIAGRAMS............................................................................................................. 32
8PROBLEM SOLVING CHECKLIST ......................................................................................33
9SERVICE PROCEDURES.....................................................................................................34
9.1 Component Replacement ............................................................................................. 34
9.1.1 Icemaker PCB Replacement ................................................................................... 34
9.1.2 Icemaker Unit Replacement .................................................................................... 34
9.1.3 Refitting Icemaker.................................................................................................... 34
9.1.4 Icemaker Temperature Sensor Replacement.......................................................... 34
9.1.5 Water Valve Replacement ....................................................................................... 35
9.1.6 Display Module Replacement .................................................................................. 35
9.1.7 Water Dispenser Pad Replacement ........................................................................ 36
9.1.8 Removing Water Tank ............................................................................................. 36
9.1.9 Refitting Water Tank ................................................................................................ 37
9.1.10 Replacing PC Door (Manufactured after Early May 2007)....................................... 38
9.1.11 Replacing PC Door (Manufactured before May 2007)............................................. 38
9.1.12 Fitting a new door .................................................................................................... 40
10 ICE & WATER COMMON COMPLAINTS............................................................................. 44
10.1 Sublimation ................................................................................................................... 44
10.2 Ice Sticking Together .................................................................................................... 44
10.3 Discolouration / Metallic Taste...................................................................................... 44
10.4 Bad Taste ..................................................................................................................... 44
10.5 Ice Appears Cloudy ...................................................................................................... 44
10.6 Particles In Ice And / Or Water ..................................................................................... 44
11 TEMPERATURE CONVERSION TABLE..............................................................................45

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1 ICE & WATER INTRODUCTION
Ice making and water dispensing facilities are being introduced to the E522B Active Smart refrigerators.
The introduction required design changes to some components and the physical movement and/or position of
other components. The functionality of the Active Smart product including downloading and diagnostics have
not changed.
Listed below are the changes to the E522B Active Smart with the introduction of Ice and Water.
1. Through-the-door water dispensing
This feature incorporates:
• The Pressure Dispensing Pad
The pressure dispensing pad (located underneath the electronic display on the door activates water
dispensing when pressed
• Water Piped to Door Through Door Hinge
Water is delivered to the door via water hose piped through the door hinge.
• Water Tank
The water tank is located in the top back rear of the PC compartment and feeds the water dispenser on the
door via the water hose, through the door hinge.
2. External water inlet plumbing
Delivers water for ice making and water dispensing through a 12-volt water valve.
3. External Water Filter
An external in-line water filter is to be fitted to each Ice and Water refrigerator, which will come standard with
every Ice & Water product?.
4. Automatic Ice Maker
The internal automatic icemaker is located on the ceiling of the FC compartment, on the left hand side. The
icemaker can be disassembled and removed for servicing.
5. New PC Temperature Sensor Position
Due to the location of the water tank in the back of the PC compartment, the PC temperature sensor position
is now located in the centre LHS of the PC duct cover.
6. New Display /Temperature Control location
The temperature control/ Digital Display panel is located on the front of the PC door
7. Electronics Power Control Board.
The electronics have been updated to run the ice and water systems. With addition of a small circuit board
attached to the power controller. Although, the electronics are still stage 4.2 they are NOT interchangeable
with non-ice and water Active Smart products.
1.1 Display Functional Schematic
Inputs Outputs
Display Harness →
Flow Sensor →
Tact Switches
Display Module
→Water Solenoid
←→ Comms
→LCD Display
2 DISPLAY INTERFACE FEATURES
2.1 Display Interface Features (Products Before January 2009)

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• Icemaker on/off.
• Bottle chill mode – 10, 15, 20, 25, 30 minute timer with alarm.
• Freezer chill mode – nominated freeze time at lower temperature set point.
• Water dispensing.
• Measured fill water dispensing – water dispensing volume selection with 3 set points preset.
• Unit selection – Metric or US units for measured volumes.
• Sabbath mode enable/disable.
• Key silent mode enable/disable.
• Key lock.
• Water dispenser key lock.
• Filter replacement alert.
• No water alert.
• Fault alert.
• Diagnostics.
• Temperature set points.
• Measured fill calibration.
2.2 Display Interface Features (Products After January 2009)
• Icemaker on/off.
• Bottle chill mode – 10, 15, 20, 25, 30 minute timer with alarm.
• Freezer chill mode – nominated freeze time at lower temperature set point.
• Water dispensing.
• Sabbath mode enable/disable.
• Key Silent mode enable/disable.
• Key Lock.
• Water dispenser key lock.
• Filter replacement alert.
• No Water Alert
• Fault Alert
• Diagnostics
• Temperature Set-points

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2.3 Display Interface (Button Description)
For Products produced before January 2009
Measured Fill
The MEASURED FILL key enables you to select the amount of water to be dispensed.
Menu
The MENU key allows you to scroll through the main menu options (Chill, Temperature, Ice and Settings)
Arrow Keys
The ARROW keys are used to scroll through the settings of each function.
DOWN UP
MEN
MEASURED

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2.4 Display Interface Button Descriptions
For Products produced after January 2009
Menu
The MENU key allows you to scroll through the main menu options (Chill, Temperature, Ice and
Settings)
Arrow Keys
The arrow keys are used to scroll through the settings of each function.
Lock
The LOCK key enables and disables the water dispenser and all the buttons.
Down U
p
Menu Lock

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2.5 FEATURES (Products Before January 2009)
2.5.1 Icemaker On/Off
This mode simply turns the icemaker on or off.
To access the ice mode, press the MENU key until ICE is
highlighted. Then use an arrow key to scroll to the icemaker ON
or OFF.
2.5.2 Freezer Chill Mode
Freezer chill is a function that rapidly freezes food in the FC by
temporarily dropping the freezer to its coldest temperature set
point for a 12-hour period.
To access, use the MENU key to scroll to CHILL, then use the
UP key until this icon appears.
To deactivate manually, use the MENU key and scroll to CHILL.
Press the DOWN key until the icon disappears.
2.5.3 Bottle Chill Mode
Bottle Chill allows the customer to put a bottle in the freezer for
a designated amount of time. When that amount of time has
elapsed an alarm will sound telling the customer to take the
bottle out of the FC. The Freezer automatically changes to its
lowest set point.
The times are 10, 15, 20, 25 and 30 minutes.
To activate this mode, use the MENU key to scroll to CHILL,
then use the UP key until this icon appears. Use the UP key to
select the time in minutes. Once selected, the alarm count
down will commence.
2.5.4 Water Dispensing
This icon will animate when the water is being dispensed.
2.5.5 Measured Fill Water Dispensing
Metric Display

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The amount of water dispensed is pre-selected.
Metric
250ml – cup
300 ml – glass
1000ml – jug
The UP and DOWN keys can be used to change the
units in 25ml increments.
US
8 floz – cup
10 floz – glass
1 Qt – jug
The UP and DOWN keys can be used to change the
units in 1oz increments.
2.5.6 Sabbath Mode
When in this mode, the alarms are deactivated and the
interior light and back light on the display will not come
on. The interior fan will not turn off when the door is
opened.
2.5.7 Key Silent Mode
When in this mode, the beeper does not operate when
the buttons on the keypad are pressed.. Note: Faults,
Bottle chill, & the door will still alarm when the
refrigerator is set on key silent mode.
Indicates the product is in Key Silent Mode.
To activate or deactivate, hold the MENU key for four (4)
seconds.
2.5.8 Dispense Lock
This mode disables the water dispensing pad & prevents
water from being dispensed.
To activate this mode, press the MENU and MEASURED
FILL keys together for two (2) seconds.
2.5.9 Key Lock
This mode disables all the buttons.
To activate this mode, press the MENU and MEASURED
FILL keys together for four (4) second.
2.5.10 Filter Replacement Alert
This icon will appear when the water filter needs
changing. The filter needs replacing every 2800 Litres or
6 months. This will flash when dispensing water.
To deactivate the warning, press the MEASURED FILL
and UP keys for 4 seconds.

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2.6 FEATURES (Products After January 2009)
2.6.1 Icemaker On/Off
This mode simply turns the icemaker on or off.
To access the ice mode, press the MENU key until ICE is
highlighted. Then use an arrow key to scroll to the icemaker ON
or OFF.
2.6.2 Freezer Chill Mode
Freezer chill is a function that rapidly freezes food in the FC by
temporarily dropping the freezer to its coldest temperature set
point for a 12-hour period.
To access, use the MENU button to scroll to FREEZER, then use
the up or down key to get fast freeze.
To deactivate manually, use the MENU button and scroll to
FREEZER. Using the DOWN button press until icon disappears.
2.6.3 Bottle Chill Mode
Bottle Chill allows the customer to put a bottle in the freezer for a
designated amount of time. When that amount of time has
elapsed an alarm will sound telling the customer to take the bottle
out of the FC. The Freezer automatically changes to it’s lowest
set point.
The times are 10, 15, 20, 25 and 30 minutes.
To activate this mode, use the MENU button to scroll to
FREEZER, then use the UP button until this icon appears. Use
the up button to select the time in minutes once selected the
alarm will commence.
2.6.4 Water Dispensing
This icon will animate when the water is being dispensed.
2.6.5 Sabbath Mode
Sabbath mode - when in this mode the alarms are deactivated and
the interior light and back light on the display will not come on. The
interior fan will not turn off when the door is opened.
To enter this mode press and hold Measured fill + Menu + Down
Buttons for 4 seconds.
2.6.6 Key Silent Mode
Key Silent Mode - when in this mode the beeper does not operate
when the buttons on the keypad are pressed.. Note: Faults, Bottle
chill, & the door will still alarm when the refrigerator is set on key
silent mode
Indicates the product is in Key Silent Mode.
To activate or deactivate – Hold the MENU button for four (4)
seconds.

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2.6.7 Dispense Lock
Water Dispense Key Lock - disables the water dispensing pad &
prevents water from being dispensed.
To activate this mode press the MENU and MEASURED FILL button
together for two (2) seconds.
2.6.8 Key Lock
Display Key Lock -disables all the buttons.
To activate this mode press the MENU and MEASURED FILL button
together after 4 seconds.
2.6.9 Filter Replacement Alert
Filter Replacement Alert - this icon will appear when the water filter
needs changing. The filter needs replacing every 2800L or 6 months.
This will flash when dispensing water.
To deactivate the warning press the MEASURED FILL and UP buttons
for 4 seconds.
3 ICEMAKER
3.1 Ice Production
The icemaker comes out of the factory defaulted to off. To turn the icemaker on, press the MENU button and
continue pressing the button until the ICE option has been scrolled to.
Press the UP and DOWN buttons to turn the icemaker on or off. When the cubes are frozen, the icemaker
motor will turn the ice cube tray and twist the tray causing the ice cubes to dislodge and fall out of tray. The
tray will then return to its normal position and refill with water.
Note: If the FC is above 32ºF or ice bin is full, or has been removed, or fitted the wrong way around, the
icemaker will not operate.
3.2 Information About The Icemaker
• The temperature of the FC needs to reach 14ºF before the icemaker commences to operate.
• When first switched on the icemaker carries out a harvest with no water in the ice tray.
• Once the ice tray resumes its normal position the water will fill the tray. At this stage it will calculate the
amount of time taken to do a cycle and then flips. After this point it will run normally calculating the amount
of time for each batch. The rate of production will depend on the temperature of the freezer and will not
operate if the temperature is above 14º F.
NOTE: If the temperature is above 32ºF the ice/water tray will sit in this position and will not turn to
dispense.
• The cubes will be ejected from the mould into the ice bin.
It is suggested that the ice cubes are levelled with the ice scoop occasionally for maximum storage.
• The large and small freezer bins can be rotated if a large amount of ice is required.
3.3 To Manually Force Icemaker
(Products before January 2009)
Press and hold down the MEASURED FILL + UP + DOWN buttons for 4 seconds. This will activate the
icemaker. Note: if the bins are removed to observe the icemaker operation, the icemaker will start to rotate.
However, if the bin lever device is in a down position the icemaker will not rotate. The lever-lock needs to be
either removed or pushed backwards for the icemaker to complete a full rotation.

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3.4 To Manually Force Icemaker
(Products after January 2009)
Press LOCK key first, then DOWN + UP keys and hold all three (3) keys for 4 seconds. This will activate the
icemaker. Note: if the bins are removed to observe the icemaker operation, the icemaker will start to rotate.
However, if the bin lever device is in a down position the icemaker will not rotate. The lever-lock needs to be
either removed or pushed backwards for the icemaker to complete a full rotation.
NOTE: A forced harvest will operate without the product being down to temperature. If the harvest does not
work the sensor may be not connected or open circuit. The Icemaker sensor must be in circuit for a forced
harvest to work.
3.5 Ice Bin Full Sequence
When the ice bin is full the icemaker starts a sequence of testing to ensure ice harvest can continue. If the
icemaker senses the bin is full the motor resumes its normal position, 20 minutes later the testing sequence
commences until such time as the ice level is reduced by usage. The testing sequence happens every 20
minutes.
Bin in position
Bin lever – senses if there
is a bin in position or not.
If there is no bin, lever will
be in the down position as
shown.
Bin full of Ice
Lever sensing if ice bin is
full.
If bin is not full icemaker
continues rotation to eject
ice.
3.6 Safety First
• When first placed into operation, discard the first bin of ice as this will remove any impurities that may have
been in the water system.
• Do the same after vacations or extended periods when ice is not used.
• Ice cubes, when not used, will become cloudy, will shrink, and will taste stale. The ice bin will need to be
emptied and cleaned periodically.
• Avoid contact with moving parts of the ejector mechanism.
• Do not place fingers on the automatic ice making mechanism while the refrigerator is turned on.

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3.7 KEY PRESSES (Products before JANUARY 2009)
To activate any mode, certain combinations of key presses are required.
The key-presses are as follows. Key presses used by the service technician are those shown shaded.
Function Key Presses Action Press Time
Key Silent Mode Menu
On/Off Hold down for 4
seconds
Key & Dispenser
Lock
Menu + Measured fill
+
On/Off Hold down for 2
seconds
Key Lock Menu + Measured fill
+
On/Off Hold down for 4
seconds
Diagnostic Mode Menu + Up
+
On Hold down for 4
seconds
Forced Defrost Menu + Down
+
On Hold down for 4
seconds
Sabbath Mode Menu + Measured fill +
Down
+ +
On/Off Hold down for 4
seconds
Disable Filter Alarm Menu + Measured fill + Up
+ +
On/Off Hold down for 4
seconds
Show Off Mode Menu + Down + Up
+ +
On/Off Hold down for 4
seconds
Flowmeter
Calibration
Measured Fill + Down
+
On Hold down for 4
seconds
Filter Reset Measured Fill + Up
+
Reset Hold down for 4
seconds
Force Icemaker
Manual
Measured Fill + Down +
Up
+ +
Activates
once
Hold down for 4
seconds

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3.8 KEY PRESSES (Products After JANUARY 2009)
To activate any mode, certain combinations of key presses are required.
The key-presses are as follows. Key presses used by the service technician are those shown shaded.
Function Key Presses Action Press Time
Key Silent Mode Up + Down
On/Off Hold down for 4 seconds
Dispenser Lock Lock On/Off Hold down for 2 seconds
Key Lock Lock
On/Off Hold down for 4 seconds
Diagnostic Mode Menu + Up
+
On Hold down for 4 seconds
Forced Defrost Menu + Down
+
On Hold down for 4 seconds
Sabbath Mode Menu + Down + Lock
+ +
On/Off Hold down for 4 seconds
Disable Filter Alarm Menu + Up + Lock
+ +
On/Off Hold down for 4 seconds
Show Off Mode Menu + Down + Up
+ +
On/Off Hold down for 4 seconds
Filter Reset Up + Lock
+
Reset Hold down for 4 seconds
Force Icemaker Manual Lock (First) then Down + Up
+ +
Activates once Press lock key first then
Down & Up keys and hold all
3 keys for 4 seconds
3.9 Temperature settings
PC Setting
32 o F 32.9oF 33.8oF 34.7oF 35.6oF 37.4oF 39.2oF 41oF 42.8oF 44.6oF 46.4oF
Colder Warmer
FC Setting
-5.8oF -5.80oF -4.0oF -3.1oF -1.3oF 0.0oF 1.4oF 2.3oF 4.1oF 5.0oF 6.8oF
Colder Warmer
Default factory settings are 37.4oF for the provision compartment and 0.0oF for the freezer compartment.
Note: Crowbar settings are PC is 24.8
° F and the FC is –14.8 ° F. Temperatures shown are average
temperatures.

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3.10 Airflow

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4DIAGNOSTICS
4.1 Diagnostics
A spanner symbol and LCD fault code will appear automatically if there is a fault in the temperature measuring
system, defrost system, fans or low ambient heater. (Refer diagram below)
When the PC door is opened an alarm will sound, the number of beeps also indicates the fault code. Pressing
any of the control buttons can deactivate these alarms.
Example: When a fault develops, the LCD fault code appears with the spanner.
After rectifying the problem, the fault code and spanner will disappear. Faults are only rectified when that
feature is used. So in the case of a defrost fault, the code will remain until a defrost is initiated and it is
successful.
4.2 Fault Codes
Fault Code 1
Reason: On the last power up, the power module failed self test.
Primary Action: Replace power module.
Fault Code 2
Reason: The previous 2 defrosts were aborted after 30 minutes.
Primary Action: Check defrost element assembly in the FC. If faulty replace.
Fault Code 3
Reason: The resistance of all the temperature sensors is outside the normal range. (> 45K
Ohms)
Primary Action: Check the 6-way RAST connector at the power module.
Secondary Action: Re-terminate the 6-way RAST connector.
Tertiary Action: Replace power module.
Fault Code 4
Reason: The resistance of all the temperature sensors is outside the normal range. (< 660
Ohms)
Primary Action: Check the 6-way RAST connector at the power module.
Secondary Action: Re-terminate the 6-way RAST connector.
Tertiary Action: Replace power module.
Fault Code 5
Reason: The resistance of the FC sensor is outside the normal range (> 45K Ohms).
Primary Action: Check the sensor connection at the power module.
Secondary Action: Replace the sensor.
Fault Code 6
Reason: The resistance of the FC sensor is outside the normal range (<660 Ohms).
Primary Action: Check the sensor connection at the power module.
Secondary Action: Replace the sensor.

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Fault Code 7
Reason: The resistance of the Evaporator sensor is outside the normal range (> 45K
Ohms).
Primary Action: Check the sensor connection at the power module.
Secondary Action: Replace the sensor.
Fault Code 8
Reason: The resistance of the Evaporator sensor is outside the normal range. (<660
Ohms)
Primary Action: Check the sensor connection at the power module.
Secondary Action: Replace the sensor.
Fault Code 9
Reason: The resistance of the PC sensor is outside the normal range (> 45K Ohms).
Primary Action: Check the sensor connection at the power module.
Secondary Action: Replace the sensor.
Fault Code 10
Reason: The resistance of the FC sensor is outside the normal range (< 660 Ohms).
Primary Action: Check the sensor connection at the power module.
Secondary Action: Replace the sensor.
Fault Code 11
Reason: The current measured for the ambient heater, PC fan and FC fan is lower than
expected.
Primary Action: Check the 6-way fan/LAH RAST connector at the power module.
Secondary Action: Re-terminate the 6-way fan/LAH RAST connector.
Tertiary Action: Replace control module.
Fault Code 12
Reason: The current measured for the ambient heater, PC fan and FC fan is higher than
expected.
Primary Action: Check the 6-way fan/LAH RAST connector at the power module.
Secondary Action: Re-terminate the 6-way fan/LAH RAST connector.
Tertiary Action: Replace control module.
Fault Code 13
Reason: Low ambient heater is drawing less current than expected. Either the heater or
wiring is open circuit or the heater is faulty.
Primary Action: Check wiring and connections at both heater and power module.
Secondary Action: Check low ambient heater resistance. If not within limits, replace.
Fault Code 14
Reason: Low ambient heater is drawing more current than expected. Either there is a
short in the heater, or the heater is faulty.
Primary Action: Check wiring and connections at both heater and power module.
Secondary Action: Check low ambient heater resistance. If not within limits, replace.
Fault Code 15
Reason: PC fan is drawing less current than is expected. Either the wiring is open circuit
or the fan is faulty.
Primary Action: Check PC fan wiring and connections at both fan and power module.
Secondary Action: Check fan. If faulty, replace fan.