Wolf CT Electric Cooktop Code E73: interrupted circuit at FastOn E3

What E73 means

On Wolf CT electric cooktops (CTE and CTE-2), such as the CT36E/S, E73 means an open circuit at FastOn E3. A FastOn is a spade wire terminal, and E73 is the third one in the numbered list. The path through that terminal is broken somewhere, so the display shows E73 and an element may stay cold. The remaining elements often retain their own terminals.

Common causes of E73

Loose spade terminal at E3
Damaged wire on that terminal
Power module not driving it

✓ One safe check you can try

1. Turn all zones off and let the glass cool fully. 2. Flip the cooktop breaker to off for one minute, then back on. 3. Run each element briefly and note which stay cold. 4. Whenever E73 returns a second time, keep the cooktop off and schedule service. Do not pry the panel.

! Why to stop there

Locating an open connection means working under the glass with the unit isolated.
We measure the circuit before ordering any part, so you do not pay for guesses.
Upfront price comes first
A 30-day workmanship warranty applies

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Cooktop codes

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E73E73 questions

What should I know about E73 mean on my Wolf cooktop?

Plainly, it means the circuit through FastOn E3 is open, so current cannot flow there. We follow the wire from that terminal to locate the open spot, and we explain it before any repair.

Could a simple breaker reset clear E73?

A single reset may clear a momentary hiccup. If a wire is physically open, E73 shows again and a technician must find the cause. We reseat the connector first, since a simple fix is cheaper than a part.

Will I need a new cooktop for E73 at all?

Rarely. An open terminal is often a small repair compared with a new cooktop. You review the price in writing up front. Most repairs like this wrap up once the open spot is found.