Maytag F33
Pump Drive System
Medium severityVerified Diagnostic Guide
SeverityMedium
What Your Machine Is Actually Telling You
F33 means the CCU detected a fault in its pump drive circuit — the relay or TRIAC that controls the drain pump motor. Different from a mechanical pump failure.
Common causes:
1. CCU relay burned (35%).
2. Drain pump short (20%).
3. Wiring (15%).
4. Pump seized (10%).
5. Power surge (10%).
6. Solder crack (10%).
Common causes:
1. CCU relay burned (35%).
2. Drain pump short (20%).
3. Wiring (15%).
4. Pump seized (10%).
5. Power surge (10%).
6. Solder crack (10%).
What You're Probably Seeing Right Now
- Machine won't drain.
- Pump is silent or runs constantly.
- F33 appeared suddenly.
- Possible burning smell.
DIY Fix — From Easiest to Hardest
1
Power Reset (5 minutes)
1. Unplug 10 minutes.
2. Try Drain Only.
2. Try Drain Only.
2
Test Drain Pump (5 minutes)
1. Unplug.
2. Disconnect pump.
3. Measure: 5-30Ω = good. Very low = shorted.
4. If shorted: may have blown relay.
2. Disconnect pump.
3. Measure: 5-30Ω = good. Very low = shorted.
4. If shorted: may have blown relay.
3
Inspect CCU Board (5 minutes)
1. Look at pump relay area.
2. Burned relay?
3. Discolored traces?
4. Solder cracks?
2. Burned relay?
3. Discolored traces?
4. Solder cracks?
4
Replace CCU (20 minutes)
1. Replace CCU ($100-280).
2. Or send for repair ($80-150).
3. Also replace pump if shorted.
2. Or send for repair ($80-150).
3. Also replace pump if shorted.
When to Call a Pro
- •CCU board — $200-$500.
- •Board repair — $80-$150.
- •Pump + CCU — $250-$550.
What It'll Cost You
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Frequently Asked Questions: Error F33
What does error code F33 mean on a Maytag washing machine?
Drain pump lost connection.
What usually causes the Maytag F33 error?
The primary cause is: Wiring break to drain pump.. It may also be caused by temporary sensor misreadings or wiring connection issues.
How do I reset and clear error F33?
Reconnect drain pump wires. If the error persists, unplug the washer from electrical power for 10 minutes to perform a complete logic board reset.
Is it safe to continue using the machine with error F33?
This code has a Medium severity level. While the machine might run, resolving the issue early prevents long-term wear on internal parts.