Skip to main content
Error code reference
Hotpoint Washer Error Code F04
Pressure switch jammed on empty - machine continually fills until overfill safety level.
SourceHotpoint Aquarius Washing Machines - Service Manual: 3-Phase Modelsp. 21-22
Diagnostic procedure
The full F04 procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check efficiency of edge connector J3 on module. Check pressure switch connection. Check pressure chamber/tube is not blocked with sludge.
SourceHotpoint Aquarius Washing Machines - Service Manual: 3-Phase Modelsp. 21-22
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock F04 procedure $9.95
Or subscribe: $29/month for all codes plus Max diagnostics, with 70 Max messages a day. Plus applicable tax.
75,000+ service documents · 20,000+ error codes · 100+ brands
Get Started$29/month · Cancel anytime · Or $9.95 3-day pass · Plus applicable tax