¶ Overview
¶ Location
The ceramic heater and thermistor are located on the heating block of hot end. To replace them, the hot end must be removed.
¶ Terminology
Different from our official term, some people may use the following terms to describe this component:
- Heater core
- Hotend heater
- Heater wire
- Heater module
¶ Difficulty and Time Estimate
- Difficulty：★★☆☆☆ (Easy)
- Estimated Time：15 minutes
¶ Where to Buy
Available at the Snapmaker Official Store
¶ Tools and Parts Required
- H2.0 hex key
- New ceramic heater and thermistor
¶ Procedure
¶ Step 1. Unload filament
- Tap the specified area on the touchscreen (Highlighted in red in the image below).
- Tap "Unload Mode".
- Select the target toolhead (e.g., No.2) and tap "Unload".
- Wait for the system to automatically complete the filament unloading.
¶ Step 2. Detach the toolhead from the docking bracket
Before proceeding, please turn off the machine and unplug the power cable!
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For head No.1: Slide to the right until the locating pin is fully visible.
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For heads No.2/3/4: Slide the toolhead to the left until the locating pin is fully visible.
¶ Step 3. Remove the hot end
- Remove the toolhead back cover.
- Identify the cables: left = ceramic heater cable; right = thermistor cable.
- Press the marked position, maintain pressure, and pull out the ceramic heater terminal.
- Press position 1, maintain pressure, pinch the front end of the wires at position 2, and pull out the thermistor terminal.
- Use the H2.0 hex key to unscrew the 2 fixing screws, then remove the hot end.
¶ Step 4. Replace the ceramic heater and thermistor
¶ 4.1 Remove the old ceramic heater and thermistor
- Remove the hotend silicone sock ①, ceramic heater clip spring ② , and pressure plate ③ in sequence.
- Remove the old ceramic heater ① and old thermistor ② in sequence.
¶ 4.2 Install the new ceramic heater and thermistor
- Apply thermal grease to the part of the heating block where the ceramic heater is installed and to the probe of the new thermistor.
- Install the new ceramic heater.
- Install the new thermistor (bend the probe tip at a 90° angle).
- Install the ceramic heater clip spring in place.
- Install the pressure plate, ensuring the correct orientation.
- Install the hotend silicone sleeve with the notched side aligned with the pressure plate.
¶ Step 5. Install the hot end
- Install the hot end and use the H2.0 hex key to tighten the 2 fixing screws.
- Reconnect the hot end cables (left = ceramic heater cable; right = thermistor cable).
- Organize the cables as shown.
- Install the toolhead back cover.
¶ Step 6. Install the toolhead
- Place the toolhead onto the docking bracket.
Before installing the toolhead, please make sure the sliders are in the correct positions. The slider for Toolhead No. 1 should be set to the far left, while the sliders for Toolheads No. 2, 3, and 4 should all be set to the far right.
You can use a hex key to adjust the slider and make sure the red mark on the slider is visible.
- Align the hole on the toolhead with the long locating pin on the docking bracket, and push inward until it stops.
The illustrated side of the toolhead should face inward.
- Align the two locating pins on the toolhead with the holes shown on the mount.
For No.1 head: hole is to the left of the pins
For No.2/3/4 heads: hole is to the right of the pins
¶ Reach out to Snapmaker Support
After following the troubleshooting steps, if you find it difficult to resolve your issue, kindly submit a support ticket through https://snapmaker.formcrafts.com/support-ticket and share your troubleshooting results with some pictures/videos.
Our dedicated support team will be more than willing to assist you in resolving the issue.