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Er:13

Bosch · WAT28401UC 2.2 cu ft 300 Series Compact Washer

Bosch WAT28401UC 2.2 cu ft 300 Series Compact Washer Er:13 Error Fix: Inlet Valve / Aquastop Fault

The Aquastop system or water inlet valve has detected a fault. The Aquastop system is a double-solenoid safety valve on the inlet hose. Check the Aquastop hose for damage. Verify the hose connection to the water supply is secure and there are no leaks. If the Aquastop has triggered, it may need to be reset or replaced. Check for water in the base pan that could trigger the leak sensor.

High severity2 fixes available✨ Free fix available

Quick Answer

Error Er:13 on the Bosch WAT28401UC 2.2 cu ft 300 Series Compact Washer means: Inlet Valve / Aquastop Fault. The top-ranked community fix is “Replace Aquastop Water Inlet Valve Assembly” (medium difficulty, ~45 min, DIY cost: $20-$40). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · washer

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

When to Call a Professional

While many washer repairs can be done safely at home, consider hiring a qualified technician if:

This is a high severity error — continued use may cause damage or a safety hazard
The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $180-$250.

Other Bosch Models with Error Er:13

WAT28400UC 2.8 cu ft Compact Front Load Washer

washer · 2 fixes

WAW285H1UC 2.2 cu ft 800 Series Compact Washer

washer · 2 fixes

WAW285H2UC 2.7 cu ft Compact Front Load Washer with EcoSilence Motor

washer · 2 fixes

Other Bosch WAT28401UC 2.2 cu ft 300 Series Compact Washer Error Codes

Door Lock Fault

Water Not Draining

Water Fill Timeout

Heating System Fault

Overfill — Water Level Too High

Motor / Drive Fault

No Spin — Imbalance Detected

2 fixes

Er:14

Door Open During Cycle

2 fixes

People Also Ask About Bosch WAT28401UC 2.2 cu ft 300 Series Compact Washer Error Er:13

What does error code Er:13 mean on a Bosch WAT28401UC 2.2 cu ft 300 Series Compact Washer?

Error code Er:13 on the Bosch WAT28401UC 2.2 cu ft 300 Series Compact Washer means: Inlet Valve / Aquastop Fault. The Aquastop system or water inlet valve has detected a fault. The Aquastop system is a double-solenoid safety valve on the inlet hose. Check the Aquastop hose for damage. Verify the hose connection to the water supply is secure and there are no leaks. If the Aquastop has triggered, it may need to be reset or replaced. Check for water in the base pan that could trigger the leak sensor.

How do I fix error code Er:13 on my Bosch WAT28401UC 2.2 cu ft 300 Series Compact Washer?

The most successful fix is "Replace Aquastop Water Inlet Valve Assembly" (medium difficulty, ~45 minutes). Estimated DIY cost: $20-$40. HomeMD has 2 community-ranked fixes for this error.

Is error code Er:13 on a Bosch WAT28401UC 2.2 cu ft 300 Series Compact Washer serious?

This error is rated high severity. You should address it promptly — continued use could cause damage or safety concerns.

Can I fix Bosch WAT28401UC 2.2 cu ft 300 Series Compact Washer error Er:13 myself?

Yes — the top-ranked community fix ("Replace Aquastop Water Inlet Valve Assembly") is rated medium difficulty and takes about 45 minutes. Tools needed: T20 Torx screwdriver, Adjustable wrench, Multimeter.

How much does it cost to repair Bosch WAT28401UC 2.2 cu ft 300 Series Compact Washer error Er:13?

DIY cost: $20-$40. Professional repair typically costs $180-$250. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Bosch WAT28401UC 2.2 cu ft 300 Series Compact Washer have?

The Bosch WAT28401UC 2.2 cu ft 300 Series Compact Washer has 8 other known error codes, including: Er:01 (Door Lock Fault), Er:02 (Water Not Draining), Er:05 (Water Fill Timeout), Er:07 (Heating System Fault), Er:08 (Overfill — Water Level Too High), and 3 more.

Which other Bosch models have the Er:13 error?

Error code Er:13 also appears on 3 other Bosch models: WAT28400UC 2.8 cu ft Compact Front Load Washer, WAW285H1UC 2.2 cu ft 800 Series Compact Washer, WAW285H2UC 2.7 cu ft Compact Front Load Washer with EcoSilence Motor. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the Bosch WAT28401UC 2.2 cu ft 300 Series Compact Washer have?

The Bosch WAT28401UC 2.2 cu ft 300 Series Compact Washer has 8 other known error codes:

Er:01 — Door Lock Fault (2 fixes)
Er:02 — Water Not Draining (2 fixes)
Er:05 — Water Fill Timeout (2 fixes)
Er:07 — Heating System Fault (2 fixes)
Er:08 — Overfill — Water Level Too High (2 fixes)
Er:10 — Motor / Drive Fault (2 fixes)
Er:11 — No Spin — Imbalance Detected (2 fixes)
Er:14 — Door Open During Cycle (2 fixes)

Which other Bosch models have the Er:13 error?

Error code Er:13 also appears on 3 other Bosch models:

WAT28400UC 2.8 cu ft Compact Front Load Washer (washer) · 2 fixes
WAW285H1UC 2.2 cu ft 800 Series Compact Washer (washer) · 2 fixes
WAW285H2UC 2.7 cu ft Compact Front Load Washer with EcoSilence Motor (washer) · 2 fixes

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