Temperature sensor (NTC) fault codes
55 codes across 5 brands, from Breville / Sage, Jura, Philips / Saeco, GE and more.
What these parts do
Most machines read temperature with an NTC thermistor, a small resistor whose resistance falls as it heats. The control board measures that resistance many times a second and shuts the heater off if the reading is impossible.
How they fail
The board rarely says "sensor is wrong". It reports a reading outside the possible range: an open circuit (a broken sensor or wire, which reads as extremely cold) or a short circuit (which reads as extremely hot). Both stop the machine heating and show a code.
Safe checks first
- Switch off and unplug, then let the machine cool and reach room temperature. A cold machine straight from a car or garage can trip some sensor codes.
- Restart once. A code that clears and stays away was a transient.
- If it returns at once on a warm machine, the fault is the sensor, its connector or its wire, not the heater.
- Opening the machine means mains voltage and often security screws. If that is not you, this is a bench repair.
Appliances carry mains voltage. Unplug before opening anything, and stop where a code's own page tells you to.
Every code, easiest fix first
| Code | Machine | Part at fault | DIY | Severity |
|---|---|---|---|---|
Error 11 or 19 | Philips / Saeco | temperature sensor lockout | easy | low |
Error 14 | Philips / Saeco | boiler / thermoblock temperature sensor | easy | medium |
C7 | GE dishwasher | thermistor / turbidity sensor | moderate | medium |
E3 to E6 | GE dryer | inlet / outlet thermistor | moderate | medium |
Error 2 | Jura | coffee thermoblock NTC sensor / thermal fuse cords | moderate | medium |
E-0A | Samsung range and wall oven | oven temperature sensor / control board relay | moderate | high |
ER01 | Breville / Sage Barista Touch | ThermoJet (ferro) heater temperature sensor (NTC) | hard | medium |
ER02 | Breville / Sage Barista Touch | ThermoJet (ferro) heater temperature sensor (NTC) | hard | medium |
ER03 | Breville / Sage Barista Touch | ThermoJet (ferro) heater temperature sensor (NTC) | hard | medium |
ER04 | Breville / Sage Barista Touch | ThermoJet (ferro) heater temperature sensor (NTC) | hard | medium |
ER05 | Breville / Sage Barista Touch | milk jug temperature sensor (NTC) | hard | medium |
ER06 | Breville / Sage Barista Touch | milk jug temperature sensor (NTC) | hard | medium |
ER07 | Breville / Sage Barista Touch | milk jug temperature sensor (NTC) | hard | medium |
ER08 | Breville / Sage Barista Touch | milk jug temperature sensor (NTC) | hard | medium |
ER09 | Breville / Sage Barista Touch | inline (brew water) temperature sensor (NTC) | hard | medium |
ER10 | Breville / Sage Barista Touch | inline (brew water) temperature sensor (NTC) | hard | medium |
ER11 | Breville / Sage Barista Touch | inline (brew water) temperature sensor (NTC) | hard | medium |
ER12 | Breville / Sage Barista Touch | inline (brew water) temperature sensor (NTC) | hard | medium |
ER01 | Breville / Sage Oracle Touch | steam boiler temperature sensor (NTC) | hard | medium |
ER02 | Breville / Sage Oracle Touch | steam boiler temperature sensor (NTC) | hard | medium |
ER03 | Breville / Sage Oracle Touch | steam boiler temperature sensor (NTC) | hard | medium |
ER04 | Breville / Sage Oracle Touch | steam boiler temperature sensor (NTC) | hard | medium |
ER05 | Breville / Sage Oracle Touch | coffee boiler temperature sensor (NTC) | hard | medium |
ER06 | Breville / Sage Oracle Touch | coffee boiler temperature sensor (NTC) | hard | medium |
ER07 | Breville / Sage Oracle Touch | coffee boiler temperature sensor (NTC) | hard | medium |
ER08 | Breville / Sage Oracle Touch | coffee boiler temperature sensor (NTC) | hard | medium |
ER09 | Breville / Sage Oracle Touch | group head temperature sensor (NTC) | hard | medium |
ER10 | Breville / Sage Oracle Touch | group head temperature sensor (NTC) | hard | medium |
ER11 | Breville / Sage Oracle Touch | group head temperature sensor (NTC) | hard | medium |
ER12 | Breville / Sage Oracle Touch | group head temperature sensor (NTC) | hard | medium |
ER13 | Breville / Sage Oracle Touch | steam wand temperature sensor (NTC) | hard | medium |
ER14 | Breville / Sage Oracle Touch | steam wand temperature sensor (NTC) | hard | medium |
ER15 | Breville / Sage Oracle Touch | steam wand temperature sensor (NTC) | hard | medium |
ER16 | Breville / Sage Oracle Touch | steam wand temperature sensor (NTC) | hard | medium |
E1 | Breville / Sage Oracle Jet | ThermoJet (ferro) heater temperature sensor (NTC) | hard | medium |
E2 | Breville / Sage Oracle Jet | ThermoJet (ferro) heater temperature sensor (NTC) | hard | medium |
E3 | Breville / Sage Oracle Jet | steam wand temperature sensor (NTC) | hard | medium |
E4 | Breville / Sage Oracle Jet | steam wand temperature sensor (NTC) | hard | medium |
E5 | Breville / Sage Oracle Jet | group head temperature sensor (NTC) | hard | medium |
E6 | Breville / Sage Oracle Jet | group head temperature sensor (NTC) | hard | medium |
00 | Breville / Sage Dual Boiler | steam boiler temperature sensor (NTC) | hard | medium |
01 | Breville / Sage Dual Boiler | steam boiler temperature sensor (NTC) | hard | medium |
02 | Breville / Sage Dual Boiler | coffee boiler temperature sensor (NTC) | hard | medium |
03 | Breville / Sage Dual Boiler | coffee boiler temperature sensor (NTC) | hard | medium |
04 | Breville / Sage Dual Boiler | group head temperature sensor (NTC) | hard | medium |
05 | Breville / Sage Dual Boiler | group head temperature sensor (NTC) | hard | medium |
Error 1 | Jura | coffee thermoblock NTC sensor | hard | medium |
Error 3 | Jura | steam thermoblock NTC sensor | hard | medium |
Error 4 | Jura | steam thermoblock NTC sensor / power board | hard | high |
E-27 | Samsung range and wall oven | oven temperature sensor | hard | medium |
E-28 | Samsung range and wall oven | oven temperature sensor | hard | medium |
to / ts | Samsung range and wall oven | cooktop sensor / cooktop board | hard | medium |
C-21 | Samsung range and wall oven | oven temperature sensor (thermistor) | hard | high |
C-24 | Samsung range and wall oven | cooling airflow / over-temp thermistor | hard | high |
E14 | Breville / Sage Oracle Jet | steam pressure sensor | not recommended | medium |
By brand
Breville / Sage: ER01, ER02, ER03, ER04, ER05, ER06, ER07, ER08, ER09, ER10, ER11, ER12, ER01, ER02, ER03, ER04, ER05, ER06, ER07, ER08, ER09, ER10, ER11, ER12, ER13, ER14, ER15, ER16, E1, E2, E3, E4, E5, E6, E14, 00, 01, 02, 03, 04, 05
Jura: Error 1, Error 2, Error 3, Error 4
Philips / Saeco: Error 11 or 19, Error 14
Samsung: E-0A, E-27, E-28, to / ts, C-21, C-24
Questions
How many codes involve temperature sensors?
We cover 55 codes on temperature sensors across 5 brands (Breville / Sage, Jura, Philips / Saeco, GE, Samsung).
Can I fix these myself?
By our ratings, 2 are easy, 4 moderate and 49 hard. The cheap checks above clear a share of the easy and moderate ones; the hard ones usually need a part replaced.
Are any of these dangerous?
4 of the 55 are rated high severity, mostly where a heater or mains-powered part is involved. Stop using the machine and follow the stop advice on the code's page.