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Er:05

Bosch · WAT28400UC 2.8 cu ft Compact Front Load Washer

Bosch WAT28400UC 2.8 cu ft Compact Front Load Washer Er:05 Error Fix: Water Fill Timeout

The washer did not fill with water within the allowed time. Check that both hot and cold water supply faucets are fully open. Remove the inlet hoses and clean the mesh screens at the water inlet valve — mineral deposits are the most common cause. Verify household water pressure is adequate (20-120 PSI required). Test the water inlet valve solenoids with a multimeter — each coil should read 500-1500 ohms. Replace the inlet valve if a solenoid is open.

Medium severity2 fixes available✨ Free fix available

Quick Answer

Error Er:05 on the Bosch WAT28400UC 2.8 cu ft Compact Front Load Washer means: Water Fill Timeout. The top-ranked community fix is “Test and Replace Water Inlet Valve Assembly” (medium difficulty, ~50 min, DIY cost: $0-$15). 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:

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: $110-$160.

Other Bosch Models with Error Er:05

WAT28401UC 2.2 cu ft 300 Series Compact 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 WAT28400UC 2.8 cu ft Compact Front Load Washer Error Codes

Door Lock Fault

Water Not Draining

Heating System Fault

Overfill — Water Level Too High

Motor / Drive Fault

No Spin — Imbalance Detected

2 fixes

Er:13

Inlet Valve / Aquastop Fault

2 fixes

Er:14

Door Open During Cycle

2 fixes

People Also Ask About Bosch WAT28400UC 2.8 cu ft Compact Front Load Washer Error Er:05

What does error code Er:05 mean on a Bosch WAT28400UC 2.8 cu ft Compact Front Load Washer?

Error code Er:05 on the Bosch WAT28400UC 2.8 cu ft Compact Front Load Washer means: Water Fill Timeout. The washer did not fill with water within the allowed time. Check that both hot and cold water supply faucets are fully open. Remove the inlet hoses and clean the mesh screens at the water inlet valve — mineral deposits are the most common cause. Verify household water pressure is adequate (20-120 PSI required). Test the water inlet valve solenoids with a multimeter — each coil should read 500-1500 ohms. Replace the inlet valve if a solenoid is open.

How do I fix error code Er:05 on my Bosch WAT28400UC 2.8 cu ft Compact Front Load Washer?

The most successful fix is "Test and Replace Water Inlet Valve Assembly" (medium difficulty, ~50 minutes). Estimated DIY cost: $0-$15. HomeMD has 2 community-ranked fixes for this error.

Is error code Er:05 on a Bosch WAT28400UC 2.8 cu ft Compact Front Load Washer serious?

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Can I fix Bosch WAT28400UC 2.8 cu ft Compact Front Load Washer error Er:05 myself?

Yes — the top-ranked community fix ("Test and Replace Water Inlet Valve Assembly") is rated medium difficulty and takes about 50 minutes. Tools needed: T20 Torx screwdriver, Multimeter, Adjustable pliers.

How much does it cost to repair Bosch WAT28400UC 2.8 cu ft Compact Front Load Washer error Er:05?

DIY cost: $0-$15. Professional repair typically costs $110-$160. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Bosch WAT28400UC 2.8 cu ft Compact Front Load Washer have?

The Bosch WAT28400UC 2.8 cu ft Compact Front Load Washer has 8 other known error codes, including: Er:01 (Door Lock Fault), Er:02 (Water Not Draining), Er:07 (Heating System Fault), Er:08 (Overfill — Water Level Too High), Er:10 (Motor / Drive Fault), and 3 more.

Which other Bosch models have the Er:05 error?

Error code Er:05 also appears on 3 other Bosch models: WAT28401UC 2.2 cu ft 300 Series Compact 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 WAT28400UC 2.8 cu ft Compact Front Load Washer have?

The Bosch WAT28400UC 2.8 cu ft Compact Front Load Washer has 8 other known error codes:

Er:01 — Door Lock Fault (2 fixes)
Er:02 — Water Not Draining (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:13 — Inlet Valve / Aquastop Fault (2 fixes)
Er:14 — Door Open During Cycle (2 fixes)

Which other Bosch models have the Er:05 error?

Error code Er:05 also appears on 3 other Bosch models:

WAT28401UC 2.2 cu ft 300 Series Compact 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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