2.17Check Refrigerant Pressure/Check for LeakPage 393-4-09
2.18Repair System [Refrigerant] LeakPage 4012-29-08
2.19Expansion Valve ReplacementPage 41-423-4-09
2.20Replace CompressorPage 43-44 12-29-08
Updated 3-4-09
Slide-In Refrigerator Operating & Service ManualPage 1
SIR Service SectionAdvanced Troubleshooting Guide / Section 2.1
The ProblemPossible CauseWhat To Check & Do
Breaker OK? Yes = Continue; No = Call electrician
Main Power Not
“ON”
Main Power “ON”
But Compressor
Does Not Run
Power not available to
unit?
Receptacle OK? Yes = Continue; No = Call
electrician
Power cord OK?Yes = Continue; No = Replace power cord
Power switch OK?Yes = Continue; No = Replace switch per Section
2.7
Unplug refrigerator power cord for 1 hour, then
Compressor thermal
overload tripped?
retry. If problem reoccurs:
1. Ensure air filter is maintained per PM
Operating Instructions
2. Ensure condenser coil is clear of debris and
cleaned, per PM Operating Instructions
Condenser unit is not
plugged in.
Check junction box mounted on side wall of service
compartment for compressor power cord.
Thermostat defective?Replace thermostat per Section 2.13.
Unit Runs, But
Refrigerator
Compartment Does
Not Cool Down To
34 - 40° F
Defective Start Relay
and/or Start Capacitor
Per Section 2.16:
1. Replace Capacitor first. Try starting
compressor. If it starts, verify working
temperature. If compressor doesn’t start:
2. Replace Start Relay. Try starting
compressor. If it starts, verify working
temperature. If NO, Continue:
Compressor defective?Replace Compressor per Section 2.20
Temperature display
needs to be calibrated?
Verify calibration of digital temperature display with
calibrated thermometer, per Section 2.11. If out of
calibration, adjust digital display. If OK, Continue.
Thermostat needs
Adjust thermostat setting, per Section 2.10
adjustment?
One or both doors
leaking cold air
Thermostat is
Inspect door gaskets for damage. If needed,
replace per Section 2.5
Replace thermostat, per Section 2.13
defective?
Condenser fan not
Replace condenser fan motor per Section 2.12
functioning
Low refrigerant
pressure?
Check system Discharge and Suction Pressures,
per Section 2.17.
1. If Discharge and Suction pressure are low,
check for system leak per Section 2.17.
2. If Discharge is High and is Suction Low,
there is a probable line restriction. Inspect
for kinked or restricted lines. If found,
replace. If not found, replace Expansion
Valve, per Section 2.19.
For Technical Support, Call 800-537-2653.Copyright 2009 Franke, Inc. All rightsreserved.
SIR Service SectionAdvanced Troubleshooting Guide / Section 2.1
The ProblemPossible CauseWhat To Check & Do
Unit Runs, But
Refrigerator
Compartment Does
Not Cool Down To
34 - 40° F [Cont.]
System leak?1. Check for system leak, per Section 2.17. If
none detected, continue. If leak detected:
2. Repair or replace lines and recharge system,
per Section 2.18
Rev. 2 3/09
For Technical Support, Call 800-537-2653.Copyright 2009 Franke, Inc. All rightsreserved.
SIR Service SectionParts List & Component Diagrams / Section 2.2
Rev. 1 4/06
For Technical Support, Call 800-537-2653.Copyright 2009 Franke, Inc. All rightsreserved.
SIR Service SectionElectric Schematics / Section 2.3
NOTE: Models with a mechanical temperature controller will not have numbered terminals on the
controller and will not have a neutral (white) wire to temperature controller.
Rev. 2 3/09
For Technical Support, Call 800-537-2653.Copyright 2009 Franke, Inc. All rightsreserved.
SIR Service SectionGeneral Requirements / Section 2.4
WARNING:
2.4Introduction to Slide-In Refrigerator Service
The SIR Module is designed to mount under a Prep Table. It
has two refrigerator compartment doors to provide easy
access to contents, from either side. The unit FRONT is
considered the side with the power switch and temp. display.
The Basics:
1)Technicians should be authorized to work on Franke
Equipment and be EPA Certified and qualified to
diagnose and repair refrigeration equipment.
2)This Slide-In Refrigerator Module operates on 120-volt
power and is provided with a grounded plug and 8’
power cord, which typically plugs into a table outlet.
Unplug unit from its120-volt table mounted power source whenever
servicing electrical components or removing service access panels.
Failure to unplug unit may result in electric shock, burns or death.
3)The SIR refrigeration system is charged with 23 ounces
(650 gm) of ozone-safe R404A refrigerant. Only use
R404A refrigerant when recharging this unit.
4)A fully functional SIR will operate at safe food holding
temperatures between: 34F minimum and 40F
maximum (1C and 4C).
5)It is typical for this unit to take from 30 to 45 minutes to
reach the normal operating temperature range, after a
prolonged shutdown. The compressor will cycle on-andoff during this cool-down period.
Suggested [On-Truck] Repair Parts:
Part No.DescriptionQty.
3587645Door Gasket2 ea.
3586246Digital Temperature Display1 ea.
For Technical Support, Call 800-537-2653.Copyright 2009 Franke, Inc. All rightsreserved.
SIR Service SectionParts Replacement / Section 2.5
2.5SIR Door Gasket Replacement
[Part No. 3587645]
1)The Slide-In Refrigerator should be unplugged and the
compartment emptied, before proceeding.
2)Open and inspect the one-piece magnetic gasket on
both doors. If a gasket is torn or crushed so that it
doesn’t completely seal around the full door perimeter, it
should be replaced. To replace:
3)Remove the one-piece gasket from the slotted plastic
extrusion built into the back of each refrigerator door.
[NOTE: Plastic extrusion can be damaged using a razor
knife to separate the old gasket from its retaining
tailpiece. If a brittle tailpiece separates from the main
gasket, remove it by pulling toward each corner using
small needle nose pliers.]
4)Clean any grime from area under the old gasket.
5)Take the new gasket [P/N:3587645] and insert the
tailpiece into the gasket-mounting slot. Align the corners
and start at the top of the door. Continue around the door
perimeter until it is completely seated.
6)Test the replacement SIR Door Gasket by:
7)Close the door and visually check the door seal and fit.
8)Plug power cord into120-volt outlet and turn ON power
switch. Allow compressor to draw down Refrigerator
Compartment temperature. Check with your hand around
the full door perimeter for any cold air leaks.
[Photo 1]
Inspect both door gaskets for
cuts, cracks or breaks.
[Photo 2]
Pull old gasket tailpiece out of
plastic door extrusion.
[Photo 3]
Align corners and insert new
gasket tailpiece in plastic slot.
[Photo 4]
Tools Required:
Needle nose pliers
Rev. 2 12/08
For Technical Support, Call 800-537-2653.Copyright 2008 Franke, Inc. All rights reserved.
Use thumb pressure to snap
gasket into slot.
SIR Service SectionParts Replacement / Section 2.6
See Section 2.11 for Temperature Display
2.6 Digital Temperature Display Replacement
[Part No. 3586246]
1)Turn OFF power switch.
2)Disconnect power at table outlet. [Pull 120-Volt plug.]
3)Using a 1/8” [3-4 mm] flat blade screwdriver, remove the
three screws from the temperature display bezel and pull
out display assembly to extent of wire harness.
4)From inside the refrigerator compartment [bulb is
mounted near evaporator cover], use a small ratchet with
a Phillips screwdriver bit to loosen and remove the two
screws on the temperature bulb mounting clip.
5)Remove bulb from mounting clip and pull connecting
wire and bulb out through cabinet front.
6)Remove new Digital Temperature Display [P/N 3586246]
from any protective packaging, uncoil 6-8” (15-20 cm) of
bulb wire and insert bulb thought penetration in interior
compartment wall.
7)From inside compartment pull out bulb, position down
into mounting clip and secure clip to wall using two
screws removed earlier. (See Photo 4 for bulb position)
8)Coil any excess bulb wire into display cavity, insert
temperature display and secure with the three mounting
screws removed earlier.
[Photo 1]
Remove the three bezelretaining screws.
[Photo 2]
Pull out plastic display assembly.
[Photo 3]
Test the new Digital Temperature Display by:
9)Plug in unit power cord to table 120-volt power supply.
10) Turn power switch ON.
11) The temperature display should show the current
compartment temperature and track pull-down to a safe
operating temperature range of 34 to 40F [1 to 4C].
Calibration procedure.
Tools Required:
1/8” [3-4 mm] flat blade screwdriver
Small ratchet with Phillips bit
Rev. 2 12/08
From insidecompartment
remove two screwsthat hold
probe mounting bracket.
[Photo 4]
Proper probe mounting position
For Technical Support, Call 800-537-2653.Copyright 2008 Franke, Inc. All rightsreserved.
SIR Service SectionParts Replacement / Section 2.6A
The small board
-
mounted control just below
2.6ATemperature Display Battery Replacement
[Standard AAA Alkaline]
1)Using a 1/8” [3-4 mm] flat blade screwdriver, remove the
three screws from the temperature display bezel and pull
out display assembly to extent of slack in sensor wire.
2)Turn display over and use a small Phillips screwdriver to
remove two screws on back of display.
3)Remove cover to access battery compartment.
4)Remove old battery and replace with fresh AAA Alkaline
Battery.
the battery can be used to change display reading
from degrees F to Degrees C.
5)Replace plastic back and secure with two small Phillips
screws removed earlier.
6)Insert temperature display into mounting hole and secure
with the three mounting screws removed earlier.
[Photo 1]
Remove the three bezelretaining screws.
[Photo 2]
Test the new Digital Temperature Display by:
7)Temperature display should show the current
compartment temperature as soon as the battery is
properly inserted.
8)If new battery does not revive display, replace Digital
Temperature Display [P/N 3586246].See Section 2.6.