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-rw-r--r--klippy/extras/controller_fan.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/klippy/extras/controller_fan.py b/klippy/extras/controller_fan.py
index 414be8de..3c6da5da 100644
--- a/klippy/extras/controller_fan.py
+++ b/klippy/extras/controller_fan.py
@@ -12,6 +12,7 @@ class ControllerFan:
self.printer = config.get_printer()
self.printer.register_event_handler("klippy:ready", self.handle_ready)
self.steppers = []
+ self.heaters = []
self.fan = fan.PrinterFan(config)
self.mcu = self.fan.mcu_fan.get_mcu()
self.max_power = config.getfloat(