Bertazzoni Cooktop E4 Error Code

The code in short

E4 mirrors E3. The manual calls it an abnormal supply voltage, this time too low. The remedy is one sentence: inspect whether the power supply is normal, then power on after it is.

What is left open

• No part is named.
• No causes are listed.
• Neither the voltage threshold nor the duration is stated.

Observations worth writing down

1. Do lights or other appliances in the kitchen misbehave too, or only the hob?
2. Did the code show when the hob was switched on, or part-way through cooking?

Whoever checks the supply will find these notes useful.

Limits for owners

Testing the supply or working on the hob feed is for a qualified person, and disassembling the hob is warned against. Leave it switched off if E4 persists although the supply looks fine.

Plugging the hob in somewhere else is not an option either; changing its electrical connection is for a qualified person.

Related codes

• E3: supply voltage too high, treated alike by the manual
• F1: the display board and left mainboard have lost their link

Questions about E4

Does E4 mean the hob failed? The entry describes a condition of the incoming supply, so the first question is about the power reaching the hob and not about a part.

Can a different outlet help? No; altering the hob’s electrical connection is work for a qualified person.

Cooktop power faults: service in Los Angeles

Call (310) 987-4514 for a Bertazzoni cooktop in Los Angeles that reports E4. Tell us what you noticed on the other kitchen circuits; the cooktop repair page covers the appliance side.

Source: Bertazzoni induction hob manual (P905I2M30NVS)