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--- heater_not_heating_at_expected_rate [2026/06/08 15:26] – created dshoop
+++ heater_not_heating_at_expected_rate [2026/06/08 15:35] (current) – dshoop
@@ Line 1: / Line 1: @@
 ====== How to fix "Heater not heating at expected rate" ======
-{{tag> articles howto about}}
+{{tag> articles howto about faq}}
-{{ :heater_not_heating.jpg|}}
+{{ :heater_not_heating.jpg?200|}}
 ===== Discussion: =====
-This error indicates a heater (extruder hot end or bed) isn't heating based on the heating characteristics curve that's expected. This could mean the heater isn't operating or the thermistor isn't operating. Look to see if heater in question is at room temperature (not heating at all) or has risen in temperature and just isn't heating as expected.
+[[Klipper]] uses an algorithm (PID controller) to monitor your heater's temperatures (using a thermistor on the hot end or in the bed to read the temperature) and adaptively apply current to the heating element(s) to maintain the stable temperature you've set.
+This error indicates a heater (extruder hot end or bed) isn't heating based on the PID heating characteristics that's been configured and are expected. This could mean the heater isn't operating or the thermistor isn't operating.
+Look to see if heater in question is at room temperature (not heating at all) or has risen in temperature and just isn't heating as expected.
 ===== Answer: =====