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Appliance Fix Guide

Bosch Dryer error code

Bosch Dryer Error F18

Drainage issue or fault with the heating element during the drying cycle.

Drainage issue or fault with the heating element during the drying cycle.

Updated Aug 18, 2026
informationalno_parts
Bosch dryer repair guide for error F18
Error codeF18Dryer

Try these first

Start here before buying a part or taking the appliance apart.

  1. 1
    Check 1

    Clean Drain Pump Filter: Unplug the dryer and locate the drain pump filter at the bottom front. Place a towel and a shallow dish underneath, then slowly unscrew the filter to release any trapped water. Clean any debris from the filter.

  2. 2
    Check 2

    Check Impeller: With the filter removed, check that the pump impeller can spin freely.

  3. 3
    Check 3

    Inspect Drain Hose: Check the drain hose for any kinks or blockages that could be preventing water from draining properly.

A quick explanation

What does F18 mean?

Drainage issue or fault with the heating element during the drying cycle.

The answer you came for

How to fix Bosch dryer error F18

Start with the safest checks and work from simple to technical.

  1. 1

    Step 1

    1. Disconnect the dryer from the power outlet to ensure safety.

  2. 2

    Step 2

    2. Locate the drain pump, which is typically behind the lower front access panel. You may need a screwdriver to remove the panel.

  3. 3

    Step 3

    3. Place a shallow tray and towels under the pump access to catch residual water.

  4. 4

    Step 4

    4. Carefully unscrew the pump cover or cap, allowing the water to drain out completely.

  5. 5

    Step 5

    5. Inspect the pump impeller and housing for any lint, debris, or foreign objects that could be causing a blockage. Clear any obstructions you find.

  6. 6

    Step 6

    6. Once clear, securely screw the pump cover back on, ensuring a watertight seal.

  7. 7

    Step 7

    7. Reattach the front access panel, plug the dryer back in, and run a test cycle to confirm the error is resolved.

Read the additional checks from the current guide

How to Fix F18 Error (Step-by-Step) Disconnect the dryer from the power outlet to ensure safety.Locate the drain pump, which is typically behind the lower front access panel. You may need a screwdriver to remove the panel.Place a shallow tray and towels under the pump access to catch residual water.Carefully unscrew the pump cover or cap, allowing the water to drain out completely.Inspect the pump impeller and housing for any lint, debris, or foreign objects that could be causing a blockage. Clear any obstructions you find.Once clear, securely screw the pump cover back on, ensuring a watertight seal.Reattach the front access panel, plug the dryer back in, and run a test cycle to confirm the error is resolved.Turn the appliance off, wait about 2 minutes, then turn it back on. Parts Availability Note: For this Electrolux/Frigidaire error code, exact OEM part numbers can vary by model revision and serial range. We’ve listed the most likely component(s), but confirm compatibility using your full model number before ordering. If no exact SKU is shown, use this guide for diagnosis first, then verify the matching OEM part on RepairClinic or PartSelect. Still Not Working? If the replacement part didn't fix the issue, you may have a wiring problem or main board failure.

What to Check Next on This Bosch Dryer Use these checks before ordering parts for Bosch dryer F18. They keep the diagnosis tied to the appliance instead of turning the page into a reset-only guide. Unplug the dryer before touching the lint housing, rear vent, lower service area, or any wiring. Clean the lint screen, moisture sensor bars, condenser area if equipped, and the full vent path so airflow problems do not imitate part failures. Run a short timed cycle with a light load and note whether the fault appears immediately, after heating starts, or near the end of the cycle. If the fault returns with clean airflow, inspect the part categories below using the full model number from the dryer tag. Stop repeated test cycles if you smell heat, see moisture near electrical areas, or hear grinding from the drum drive. Recommended Parts to CheckBosch dryer part numbers vary by model. These are model-number-safe part-category searches, not universal fit claims.Dryer lint screenCommon replacement category: lint filterFit note: Exact OEM part number varies by full model number. Confirm compatibility before buying.Why check it: Start with lint restrictions when heating, airflow, or maintenance warnings appear.Search Amazon for Dryer lint screenDryer thermal fuseCommon replacement category: thermal protectionFit note: Exact OEM part number varies by full model number. Confirm compatibility before buying.Why check it: Common safety device to inspect after overheating or no-heat symptoms.Search Amazon for Dryer thermal fuseDryer drum beltCommon replacement category: drive systemFit note: Exact OEM part number varies by full model number. Confirm compatibility before buying.Why check it: Worth checking when the dryer tumbles poorly, stalls, or makes drive noise.Search Amazon for Dryer drum beltDryer moisture sensorCommon replacement category: sensor circuitFit note: Exact OEM part number varies by full model number. Confirm compatibility before buying.Why check it: Useful category to verify when dryness or care/maintenance messages persist.Search Amazon for Dryer moisture sensorBefore ordering: match the part to the complete model number on the appliance tag. Browse all Bosch error codes: Bosch Error Codes

If the code comes back

Do not keep replacing parts based only on the code. Repeat the safe checks above. If the fault remains, stop and arrange qualified service rather than ordering from the code alone.

What may be causing it?

  • Clogged drain pump filter
  • Blocked drain hose
  • Faulty drain pump
  • Obstructed pump impeller

These are possibilities to investigate, not proof that one part has failed.

Recommended part

Recommended part for this error code

Replacement part

OEM candidate: 00145623

Price noted in the current guide: $35-$110

Why this part is shown: It is associated with Bosch Dryer error F18 in the current guide. The error code alone does not prove this part has failed.

Compatibility varies by model. Confirm that the Amazon listing includes your complete dryer model number before ordering.

Amazon part link View recommended part on Amazon

You can open the recommendation now. Check model compatibility on the Amazon page before purchasing.

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Replacement options

Ready to replace your dryer?

If repairing this dryer no longer feels worthwhile, compare three replacement paths below.

Why shop your replacement on Amazon?

  • Fast, free delivery

    Prime members can get fast, free delivery on eligible items.

  • Convenient delivery options

    Select large appliances may offer scheduled or Room of Choice delivery.

  • Haul-away options

    Haul-away may be available for select appliances and delivery areas.

  • Installation help

    Installation or assembly may be available on select items.

Delivery and service options, fees, and availability vary by item, seller, and delivery ZIP code. Confirm available services at Amazon checkout.

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Make the money decision

Repair or replace calculator

Use the age and total repair estimate to get a simple comparison. This is guidance, not a guarantee.

Safety first

Disconnect power before opening panels or touching internal parts.

When to stop
  • Stop if you see burned wiring, melted connectors, water near electrical parts, or a gas smell.
  • Do not perform live-voltage testing unless you are trained and equipped for it.
  • Use the exact model manual or service information before replacing electronic controls.

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