KitchenAid KSSP42QFS05 built-in refrigerator Parts

To reset your KitchenAid KSSP42QFS05 side-by-side refrigerator, we recommend doing a power reset (unplug or switch off the breaker briefly) to clear minor control glitches that can affect cooling, the ice maker, or the water dispenser. This is the safest “reboot” for most symptoms.

Quick reset steps (power reset)

• Unplug the refrigerator, or turn the circuit breaker OFF.
• Wait 5 minutes (this lets the control fully discharge).
• Restore power.
• Wait up to 24 hours for temperatures to stabilize after any reset or control change.
• If you have a dispenser, dispense water for 1 to 2 minutes to help clear air from the line.

If the issue is ice or water related

A reset helps when the dispenser or ice maker is “stuck,” but it will not fix a mechanical or water-supply problem. Check these common causes first:

• House water supply valve is fully open.
• Water line is not kinked behind the built-in cabinet.
• Ice maker is turned ON and the bin is seated correctly.
• Freezer temperature is near 0°F (ice production drops if it is warmer).
• Filter or inline filter is restricted (if your setup uses one).

Helpful DIY guidance: how to prevent water dispenser and ice maker problems

When a reset points to a failed part

If the refrigerator powers back on but the symptom returns quickly, a switch, ice maker component, or defrost control can be the real cause.

Symptom after reset	Most likely area to check	Example part for this model
No ice, ice maker not cycling	Ice maker assembly or thermostat	Ice maker assembly - refrigerator ice maker by whirlpool 4317943, refrigerator ice maker thermostat WP627985
Dispenser won’t run	Dispenser switch	Refrigerator dispenser switch WP2162361
Frost buildup, warm freezer	Defrost system	Defrost timer WP2183400, refrigerator heater WP2000631, refrigerator defrost bi-metal WP4387499

Why it matters

A proper reset clears temporary electronic lockups without risking damage to the compressor or control board. If the same problem returns, the pattern helps narrow troubleshooting to the ice maker, dispenser, evaporator airflow, or defrost system.

Last updated: February 2026

The KitchenAid KSSP42QFS05 built-in side-by-side refrigerator is 25.3 cubic feet total capacity. That number is the overall storage volume (fresh food plus freezer) and is the best spec to use when comparing built-in refrigerator sizes.

What “25.3 cubic feet” means in real use

Capacity is measured as total interior volume, not usable shelf space. Usable space can feel smaller depending on shelving, ice maker hardware, and door bins.

Common factors that reduce usable space:

• Thick built-in insulation and cabinet walls
• Ice maker and ice bin taking freezer room
• Air channels and vents that must stay clear
• Shelf configuration and drawer layout
• Water filter housing (if equipped)

Quick spec check

Spec	What to expect for KSSP42QFS05	Why it matters
Total capacity	25.3 cu. ft.	Overall size comparison
Type	Built-in side-by-side	Fits a 42-inch built-in opening style
Best comparison	Other 42-inch built-in side-by-sides	Keeps apples-to-apples sizing

Why it matters

Knowing the cubic feet helps you compare the KSSP42QFS05 to other KitchenAid and Whirlpool-built models, but it also helps when planning food storage, organizing airflow, and deciding whether features like an ice maker are worth the freezer-space tradeoff.

Parts that can affect storage and performance

If you are troubleshooting cooling or ice production (which can make the refrigerator feel “smaller” due to frost or poor airflow), these model-compatible parts are commonly involved:

• Ice maker assembly - refrigerator ice maker by whirlpool 4317943
• Refrigerator evaporator fan motor WP4389155
• Defrost timer WP2183400

For DIY help with airflow-related issues, we recommend how to fix your evaporator cooling fan.

Last updated: February 2026

The most common KitchenAid refrigerator problems are cooling issues (warm fridge or freezer), ice maker failures, and water leaks. On your KitchenAid KSSP42QFS05 built-in side-by-side, these symptoms are often tied to airflow, defrost-system performance, or the ice and water supply components.

Most common symptoms and what they usually point to

• Temperature swings or warm compartments: evaporator fan not moving air, frost buildup from a defrost problem, or a control/thermostat issue
• No ice or poor ice production: ice maker assembly fault, ice maker thermostat issue, or water supply restriction
• Water leaking or puddles: clogged defrost drain, loose fittings/couplings, or a water line connection problem
• No water from dispenser: air in the line, dispenser switch issue, or water inlet/supply problem
• Unusual noises: fan blade rubbing ice, worn fan motor, or vibration from panels/lines

Quick checks we recommend first (before replacing parts)

• Confirm the controls are set to normal temperatures (most refrigerators run best around 37°F fresh food and 0°F freezer).
• Make sure vents inside both compartments are not blocked by food packages.
• Listen for the evaporator fan running when the compressor is on (often heard in the freezer area).
• Check for frost buildup on the freezer back panel (a strong clue of a defrost issue).
• If you have a water dispenser, purge air after any filter or water line work using how to purge air from a refrigerator water dispenser video.

Common part-related fixes for this model

If symptoms match, these are frequently involved on the KSSP42QFS05:

Symptom	Commonly involved part	Example part on this page
Warm fridge/freezer, weak airflow	Evaporator fan motor or fan blade	Refrigerator evaporator fan motor WP4389155, refrigerator evaporator fan blade WP2169142
Frost buildup, warming over time	Defrost heater, defrost bi-metal, or defrost timer	Refrigerator heater WP2000631, refrigerator defrost bi-metal WP4387499, defrost timer WP2183400
No ice	Ice maker assembly or ice maker thermostat	Ice maker assembly - refrigerator ice maker by whirlpool 4317943, refrigerator ice maker thermostat WP627985
Drips/leaks at water connections	Coupling or fitting	Refrigerator coupling WPW10169511, refrigerator fitting WP4388152

Why it matters

Cooling and defrost problems can quickly lead to food spoilage, while water leaks can damage flooring and cabinetry. Catching the symptom early helps you focus on the right system (airflow, defrost, or ice and water) and avoid replacing unnecessary parts.

Last updated: February 2026

Vacation mode on your KitchenAid KSSP42QFS05 refrigerator is a power-saving setting designed for times you are away; it reduces unnecessary cooling and typically turns off features like fast cool and fast freeze so the refrigerator runs more efficiently while still keeping food safe.

What vacation mode usually changes

When we enable vacation mode on built-in side-by-side refrigerators like the KSSP42QFS05, the control is trying to cut energy use and reduce ice and water activity.

Common changes include:

• Disables fast cool and fast freeze (if they were on)
• Reduces how often the defrost system runs
• May pause ice production (depending on configuration)
• Keeps normal temperature control active for food safety
• Helps prevent excess frost and unnecessary compressor run time

When to use it (and when not to)

Use vacation mode when the doors will stay closed for an extended period.

Good times to use it:

• You will be away for several days or longer
• The ice maker is not needed
• You want to reduce energy use while the refrigerator stays on

Skip vacation mode if:

• Someone will be opening the doors daily
• You are actively loading warm groceries (use normal cooling instead)
• You are troubleshooting a cooling problem (leave settings standard)

Quick checklist before you leave

• Set refrigerator to about 37°F and freezer to about 0°F
• Empty the ice bin if ice production will be off
• Discard perishables that will expire while you are gone
• Confirm door seals are closing fully (a poor seal wastes energy)
• If you have water dispensing, purge air and verify flow is normal

Related parts that affect “away mode” performance

Vacation mode cannot fix mechanical issues. If you have warm temps, heavy frost, or fan noise, these parts are commonly involved:

Symptom	Common area	Example part for this model
Freezer warm, weak airflow	Evaporator fan system	Refrigerator evaporator fan motor WP4389155
Frost buildup, warming over time	Defrost system	Defrost timer WP2183400
Ice maker not producing (not in vacation mode)	Ice maker assembly	Ice maker assembly - refrigerator ice maker by whirlpool 4317943

Why it matters

Vacation mode is meant to protect food while lowering operating cost during long periods of non-use. If temperatures drift or frost builds up, that points to airflow, defrost, or ice maker issues rather than a control setting.

For additional KitchenAid-specific water and filter tips that can help before a trip, use how to replace the water filter in a KitchenAid refrigerator.

Last updated: February 2026