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Washer halts mid-cycle and displays PE, E4, or E7 on the control panel — caused by the pressure switch failing to send a valid water-level signal to the main board.
The tub fills only partially or not at all because the faulty switch incorrectly signals that the desired water level has already been reached.
Water keeps entering past the normal fill line, triggering a UE overflow error — the switch can no longer detect that the tub is full and fails to close the inlet valve.
Clothes come out with detergent residue or remain dirty because inaccurate water-level readings cause the machine to use too little water for the selected load size.
💡 Pro Tip: How to Tell Your Pressure Switch Has Failed
Your part is likely the culprit if you notice any of the following:
⚠️ Washer displays PE, E4, or E7 error code at the start of a cycle
⚠️ Tub does not fill with water or fills only partially before stopping
⚠️ Washer overflows or keeps adding water past the normal fill level (UE overflow)
⚠️ Clothes come out poorly rinsed or detergent residue remains after a full cycle
🔍 Diagnostic tip: Disconnect the small pressure hose from the switch and blow gently into it while listening for a faint click. No click means the diaphragm is ruptured and the switch must be replaced. Also inspect the hose for kinks, cracks, or lime-scale blockages — a clogged hose can mimic a bad switch.
📦 What's in the Box
✅ 1× Water Level Pressure Switch Assembly 6501EA1001C (body Ø 2.4" × H 2.05", hose 22.6", 3-pin connector)
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Disclaimer: Compatibility information, part numbers, and model fitment data on this page are sourced from manufacturer databases and third-party references. While we strive for accuracy, please verify your appliance model number before ordering. Heima is not responsible for errors or omissions in compatibility listings.
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