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Error code reference

Frigidaire Dishwasher Error Code E:05

Faulty water switch relay; water switch runs continually.

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What the E:05 error code actually means

Your Frigidaire dishwasher has detected that a part controlling the water flow is stuck in the 'on' position instead of turning on and off normally. This is an internal electrical problem inside the dishwasher's main control unit at the bottom of the machine. The dishwasher has stopped operating to prevent potential water issues, and a repair technician will need to replace that control unit.

Diagnostic procedure

The full E:05 procedure

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1
First diagnostic step
Replace power module (located in base).
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of E:05

Ranked by how often they cause this code
  1. 1Failed power module relay
  2. 2Electrical surge damage to power module
  3. 3Loose or corroded wiring harness connection at power module
  4. 4Faulty water switch

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Questions people ask about E:05

What does E:05 mean on a Frigidaire dishwasher?
The E:05 code on a Frigidaire dishwasher means the water switch relay is faulty and running continuously instead of cycling normally. This is an internal fault within the power module located in the base of the unit. The dishwasher will not operate normally until the fault is resolved. Replacement of the power module is the primary recommended repair.
Is it safe to use my Frigidaire dishwasher when it shows E:05?
You should not continue using the dishwasher while the E:05 code is active. A stuck water switch relay running continuously can lead to uncontrolled water flow behavior, which poses a risk of water damage inside the appliance or to surrounding cabinetry and flooring. Power the dishwasher off at the circuit breaker until the repair is completed.
Will resetting my Frigidaire dishwasher clear the E:05 error code?
A power reset by turning off the circuit breaker for a few minutes may temporarily clear the E:05 code, but it will almost certainly return once the dishwasher attempts to run a cycle because the underlying relay fault in the power module is a hardware failure. A reset does not repair the faulty component. Replacing the power module is required for a lasting fix.
Can I fix the E:05 error on my Frigidaire dishwasher myself?
A confident DIYer with basic electrical repair experience can replace the power module in the base of the dishwasher, which is the first diagnostic step for this code. Before replacing the module, check the wiring harness connections at the module for corrosion or looseness, as this is a no-cost first check. If you are not comfortable working around electrical components in an appliance, a qualified technician should perform the repair.
How much does it cost to repair a Frigidaire dishwasher E:05 error?
If you are doing the repair yourself, the main cost is the replacement power module, which typically ranges from around $60 to $150 depending on the specific model. If you hire a technician, total repair costs including labor generally range from $150 to $300 or more. Getting the exact part number from your model's data plate before purchasing ensures you buy the correct module.

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