Sub-Zero
Freestanding Ice Maker

Model #505ISC Official Sub-Zero ice maker

Here are the diagrams and repair parts for Sub-Zero 505ISC ice maker, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

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Parts List

Showing 10 of 35 parts

Fan Blade#3

Unit components Diagram

Fan blade

Part #978655
In Stock
$36.99 | 
12% OFF 
Phone Price: $41.99
Refrigerator Service Valve

#NI

All parts Diagram

In Stock
$34.19 | 
13% OFF 
Phone Price: $39.19
Refrigerator Service Valve (replaces 978025)

#NI

All parts Diagram

Refrigerator service valve

Part #978025
Replaced by #WP978025
?
Manufacturer substitution
This part replaces 978025. Substitute parts can look different from the original.
In Stock
$18.97 | 
37% OFF 
MSRP: $30.00
Refrigerator Service Valve, 3/4-in

#NI

All parts Diagram

In Stock
$40.49 | 
11% OFF 
Phone Price: $45.49
Refrigerator Ice Maker Inlet Collar Screw#29

Unit components Diagram

Refrigerator ice maker inlet collar screw

Part #488661
This item is not returnable
In Stock
$4.39 | 
19% OFF 
Phone Price: $5.39
Ice Maker Pump Mounting Screw#11

Pump components Diagram

In Stock
$16.79 | 
11% OFF 
Phone Price: $18.79
Refrigerator Service Valve

#NI

All parts Diagram

In Stock
$38.69 | 
11% OFF 
Phone Price: $43.69
Freezer Door Inner Panel Rivet#23

Cabinet, liner and door components Diagram

Freezer inner door panel rivet

Part #596788
Replaced by #WP596788
?
Manufacturer substitution
This part replaces 596788. Substitute parts can look different from the original.
This item is not returnable
In Stock
$6.49 | 
13% OFF 
Phone Price: $7.49
Refrigerator Mastic Sealer

#NI

All parts Diagram

Refrigerator mastic sealer

Part #505587
Replaced by #WP505587
?
Manufacturer substitution
This part replaces 505587. Substitute parts can look different from the original.
In Stock
$66.67
Appliance Spray Paint (White Primer)

#NI

All parts Diagram

Spray paint

Part #350942
Replaced by #350942
?
Manufacturer substitution
This part replaces 350942. Substitute parts can look different from the original.
In Stock
$26.20

Symptoms common to all freestanding ice makers

Choose a symptom to see related ice maker repairs.

Main causes: failing compressor, bad condenser fan motor, faulty drain pump, bad recirculation pump, water supply problems, bad water valve
Main causes: lack of electrical power, bad power cord, wiring failure, bad control board, faulty bin thermistor, bad evaporator thermistor
Main causes: bad bin thermistor, condenser fan failure, faulty control board
Main causes: cracked water supply line, leaky drain line, broken drain pump, cracked water reservoir, leaky ice bin
Main causes: water supply problems, control board failure, weak recirculation pump, clogged water distributer, faulty cutting grid
Main causes: bad electronic control board, water supply problems, faulty recirculation pump, sealed system failure, broken cutting grid
Main causes: wiring failure, broken cutting grid, faulty electronic control board
Main causes: dirty evaporator plate, untreated water supply, food items being stored in ice storage bin

Repair guides common to all freestanding ice makers

These step-by-step repair guides will help you safely fix what’s broken on your ice maker.

How to replace a freestanding ice maker cutter grid

When the cutting grid is broken, ice cubes don’t drop into the ice bin. Use the steps in this repair guide to replace a broken cutter grid.

Repair difficulty
Time required
 15 minutes or less
How to replace a freestanding ice maker electronic control board

When the electronic control board won’t activate the ice maker components, follow these steps to install a new one.

Repair difficulty
Time required
 45 minutes or less
How to replace a freestanding ice maker recirculation pump

If your ice maker isn’t making ice, the pump could be the problem. Here’s how to replace it.

Repair difficulty
Time required
 45 minutes or less

Articles and videos common to all freestanding ice makers

Use the advice and tips in these articles and videos to get the most out of your ice maker.

August 19, 2022

Are DIY appliance repairs safe?

Are DIY appliance repairs safe?

Find out how to stay safe when repairing your appliances.

August 17, 2021

How to read a wiring schematic video

How to read a wiring schematic video

Learn how to decipher symbols so you can buy the right part for your problem.

January 13, 2015

Freestanding ice maker troubleshooting

Freestanding ice maker troubleshooting

See what troubleshooting steps to take with your freestanding ice maker before calling for repair.