<p>Your printer uses a 24 V power supply, this implies that the peripherals also need to be for this voltage. Therefor a 24 V heater cartridge is needed.</p>
<p>From <a href="/a/9951/">this answer</a> on question <a href="https://3dprinting.stackexchange.com/questions/9947/heater-cartridge-with-7-2-ohms-12-or-24-v">Heater cartridge with 7.2 ohms - 12 or 24 V?</a> gives you the answer:</p>
<blockquote>
<p>e3D Heater Cartridges are documented to be around 4.8 Ω for 12 V &amp; 30 W, 3.6 Ω for 12 V &amp; 40 W, 19.2 Ω for 24 V 30 W and 14.4 Ω for 24 V 40 W.</p>
</blockquote>
<p>A heater cartridge of 14.5 Ω is a 24 V heater cartridge of 40 W, this is the correct heater cartridge for your printer.</p>

CC BY-SA 4.0
2022-06-23T07:15:32.390Z
2022-06-23T07:15:32.390Z
0scar
<p>It has been suggested that I measure the resistance of the nozzle heater on my printer since I've had some thermal runaway errors. The machine is brand new. I have done so by connecting my multimeter across the two pins on the connector. I get a value of 14.5 Ohms. Is this a reasonable value?</p>

<creality-ender-5><thermal-runaway>
What is the acceptable resistance of a functioning heater cartridge on my Creality Ender-5 Pro printer?
Desertgeek
# What is the acceptable resistance of a functioning heater cartridge on my Creality Ender-5 Pro printer?

(Asked by: username_0 on 2022-06-23)

It has been suggested that I measure the resistance of the nozzle heater on my printer since I've had some thermal runaway errors. The machine is brand new. I have done so by connecting my multimeter across the two pins on the connector. I get a value of 14.5 Ohms. Is this a reasonable value?

**Tags:** creality-ender-5, thermal-runaway


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## 1 answers

### Answer by username_1 on 2022-06-23. Score: 1

Your printer uses a 24 V power supply, this implies that the peripherals also need to be for this voltage. Therefor a 24 V heater cartridge is needed.

From [this answer](/a/9951/) on question [Heater cartridge with 7.2 ohms - 12 or 24 V?](https://3dprinting.stackexchange.com/questions/9947/heater-cartridge-with-7-2-ohms-12-or-24-v) gives you the answer:

> e3D Heater Cartridges are documented to be around 4.8 Ω for 12 V & 30 W, 3.6 Ω for 12 V & 40 W, 19.2 Ω for 24 V 30 W and 14.4 Ω for 24 V 40 W.

A heater cartridge of 14.5 Ω is a 24 V heater cartridge of 40 W, this is the correct heater cartridge for your printer.


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