Z Grills Pellet Grill ER1 — What It Means & How to Fix It
Also shown as Error 1 on some models.
ER1 on a Z Grills 1000D4E is the temperature sensor alarm — the RTD probe's circuit has failed or has a poor connection.
What this code means
The screen reads "ERROR 1 TEMP SENSOR". Z Grills defines it as an RTD temperature sensor alarm caused by an RTD circuit failure or a poor connection. The controller relies on that probe to regulate the fire, so it stops when the reading disappears.
Z Grills publishes this table for the 1000D4E, whose screen spells the fault out as an "ERROR" number with a short label. Other Z Grills controllers use different codes, so confirm against the help article for your own model.
Most likely causes
| Cause | How likely | DIY-fixable? |
|---|---|---|
| RTD probe connection loose or corroded | Common | Partly — clear the code and retest |
| RTD probe circuit failed | Common | No — contact Z Grills support |
What you can try yourself
- Let the grill cool, then wipe grease and soot off the temperature probe inside the cooking chamber.
- Clear the code the way Z Grills describes: turn the power switch off, rotate the dial to Shut Down Cycle, turn the power switch back on, then rotate the dial to Smoke to start as usual.
- If ERROR 1 returns straight away, stop there and contact the Z Grills Support Team with your model number.
When to call a technician
- ERROR 1 reappears immediately after the clearing sequence.
- The probe inside the chamber is bent, broken or hanging loose.
Typical professional repair cost: Free if the reset clears it. A persistent ER1 means a replacement temperature probe; Z Grills covers parts on grills still inside the warranty period.
Frequently asked questions
What does ERROR 1 TEMP SENSOR mean on a Z Grills?
It is the RTD temperature sensor alarm. Either the sensor circuit has failed or its connection to the controller is poor.
How do I reset a Z Grills error code?
Switch the power off, turn the dial to Shut Down Cycle, switch the power back on, then turn the dial to Smoke and start the grill normally.
Sources checked
Error meanings can vary by model. This guide was checked against the documentation above; use the manual for the model number on your own appliance when it differs.
Related Z Grills codes
- Z Grills Pellet Grill ER2 ER2 on a Z Grills 1000D4E is the high temperature alarm: the grill has gone above its preset limit.
- Z Grills Pellet Grill ER3 ER3 on a Z Grills 1000D4E is the low temperature alarm: the grill sat below its set point for too long, which usually means the fire went out.
- Z Grills Pellet Grill ER4 ER4 on a Z Grills 1000D4E is an ignition failure: the controller tried five times and never detected a flame.
More: all Z Grills pellet grill codes · all Z Grills codes · search by symptom