Cissell OPL Dryer Error Code EnoiSt: Moisture Sensor
EnoiSt is a moisture sensor message: the control uses that sensor to judge when laundry is dry on auto cycles, and it saw a problem with the reading. The maker says to clear it with the Back key. Use a timed dry cycle for now and call us if the message keeps returning.
Low: auto-dry may be unreliable, but the dryer keeps running timed cycles.
What does Cissell error code EnoiSt mean?
Auto-dry cycles on a Cissell OPL dryer, such as the CT030N, rely on a moisture sensor, usually a pair of bars inside the drum. Wet laundry touching the bars lets a small current through, and as the clothes dry the current falls. The control follows that change and ends the cycle when the load reaches the chosen dryness. If the reading is missing, stuck or does not behave like a normal drying curve, the control cannot trust it and shows EnoiSt. The maker says the message can be cleared with the Back key, and the dryer remains usable on timed cycles that do not depend on the sensor. A repeat means the sensor deserves a look. The causes in the manual are sensor bars coated with fabric softener or lint, the wiring to the sensor, the control input that reads it, and the cycle type in use when the message appears.
Affected models and control systems
This page covers the Cissell OPL electronic control tumble dryers, 25 to 35 lb C-prefix models such as the CT030N.
Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.
What you may notice
- EnoiSt appears during an auto-dry cycle
- Auto cycles end too early or run too long
- Timed cycles work normally
Possible causes
Listed in Cissell's documentation
- Sensor bars coated by fabric softener or lint
- Damaged sensor wiring
- A control input that misreads the sensor
- A cycle type that depends on the sensor when the problem appears
Other likely causes — what usually sits behind error code EnoiSt on this control. A technician confirms which one it is before any part is replaced.
- Dryer sheets or liquid softener residue that has built a thin film on the sensor bars
- Wires at the drum sensor terminals loosened by years of drum vibration
- Laundry with metal parts, such as zippers or buckles, that keeps bridging the bars and gives a false reading
Safe checks before calling for service
- Press the Back key to clear the message, as the owner's manual says.
- Wipe the lint screen and run a timed dry cycle for now.
- If the sensor bars inside the drum look coated, tell us rather than scraping them yourself.
- Call us to schedule service if EnoiSt keeps returning. Tell us which cycle type was in use.
How a technician diagnoses error code EnoiSt
- Read the code and ask which cycle type was running.
- Inspect the sensor bars for film, wear and corrosion.
- Check the sensor wiring and connections.
- Measure the sensor signal with damp and dry loads.
- Replace the bars, wiring or control only after the test shows which one has failed.
- Sensor wiring runs through the drum and cabinet, behind panels with line voltage.
- A coated sensor bar has to be cleaned the right way, or it can be damaged.
- The dryer can run timed cycles meanwhile, so the repair can be scheduled.
Technical reference
- Document
- Tumble Dryer Programming, OPL Electronic Control, Part No. 70444901ENR15, October 2018, Error Codes Table 11 (pp. 50-51)
- Edition
- Part No. 70444901ENR15, October 2018
- Models / control
- OPL electronic control tumble dryers (25-35 lb, C-prefix)
- Section
- Error Codes table, printed pp. 51-52 (PDF pages equal printed pages); Machine Errors behaviour descriptions p. 50
- Checked
- October 2026
We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.
Related Cissell dryer error codes
Can I keep using the dryer with EnoiSt?
Yes, on timed cycles. Auto-dry cycles depend on the sensor and may misjudge dryness.
Will cleaning the bars fix it?
Often, if film is the cause. Ask us how, as the bars are delicate.
What does the Back key do here?
The maker says it clears the message. If EnoiSt returns, the sensor needs attention.
Need help with Cissell error code EnoiSt?
A technician confirms the cause on site and gives you the price in writing before any work starts.