# Looking for some help

**URL:** <https://forum.sovol3d.com/t/looking-for-some-help/5748>\
**Category:** Sovol SV04 IDEX\
**Tags:** advice\
**Created:** [October 3, 2024, 1:22am UTC](https://forum.sovol3d.com/t/looking-for-some-help/5748 "2024-10-03T01:22:55Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Bjoern](https://avatars.discourse-cdn.com/v4/letter/b/46a35a/32.png) [@Bjoern](https://forum.sovol3d.com/u/Bjoern)\
**Post date:** [October 3, 2024, 3:13am UTC](https://forum.sovol3d.com/t/looking-for-some-help/5748/3 "2024-10-03T03:13:50Z")

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1. Check the cabling of heater & thermistor at each heat block. There might be missing insulation / short circuits.
2. Ensure that both nozzles are heating up when 200°C nozzle temperatures are set via menu. In case of missing heat-up use a multimeter iot check if heater voltage is present. In case of voltage present & no heat-up you’ll need to replace the heater module. In case of missing heater voltage: Check cable connection between heater and motherboard. If there is no heater voltage present on motherboard: Motherboard replacement/repair needed.
3. In case of heat-up before the error shows up [run PID-tuning.](https://forum.sovol3d.com/t/the-printers-need-a-calibration/2975)
4. In case the error shows up during PID tuning: Check cable connection between thermistor and motherboard. If cabling is ok: Use a multimeter iot to check if there is a significant difference between electrical resistance of the thermistor & thermistor specification chart. In case of huge difference: Replace thermistor.  
[Here you’ll find helpful information about pin layout of motherboard & gantry boards.](https://github.com/jbu313mlb92ome8w/Sovol_SV04)

Good luck!  
Björn

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