Monogram ZHU Induction Cooktop Code Er20: touch board error stored
A technician sees Er20 in the service mode of a Monogram ZHU30 or ZHU36 induction cooktop, and it means an internal electronic problem on the touch board. Owners do not normally get the full code. They…
- Code
- Er20
- Appliance
- Cooktop
- Brand
- Monogram
- Warranty
- 30-day workmanship
What Er20 means
A technician sees Er20 in the service mode of a Monogram ZHU30 or ZHU36 induction cooktop, and it means an internal electronic problem on the touch board. Owners do not normally get the full code. They see an E, or an E alternating with a letter, and may find the keys unresponsive or the cooktop refusing to start a zone. It is treated as a touch board matter, like two neighboring codes.
Common causes of Er20
- Touch board electronics
- Ribbon cable and connectors at the touch board
- Control power reaching the board
1. Turn every element off. 2. Shut the cooktop off at the breaker for a full minute, then switch it back on. 3. Wipe the keypanel clean and dry. 4. Note whether it happened after a power flicker or a storm. 5. Call us if the E comes back.
- Er20 is read only in the service mode
- We compare it with other stored codes before deciding on the touch board
- We confirm connections first so you are not charged for a loose plug
Other Cooktop codes
Can a power dip cause Er20?
Sometimes a brief power event can store a code. Switch the cooktop off at the breaker for a minute and restore it. If the E does not return, keep an eye on it.
Is the glass cracked if I see this?
Not necessarily. This code concerns electronics under the glass, not the surface. A cracked top is a separate matter and needs the cooktop switched off at once.
How long does the repair take?
We bring the usual touch board for your size when we can. It depends on the model and what we find, and we tell you before we start.
Still seeing Er20?
A technician diagnoses it on site and gives you the price in writing before any work starts.