diff --git a/components/water_cooling_temperature_control_module/water_cooling_temperature_control_module.cpp b/components/water_cooling_temperature_control_module/water_cooling_temperature_control_module.cpp
index 4c2c726..cdaaa6b 100644
--- a/components/water_cooling_temperature_control_module/water_cooling_temperature_control_module.cpp
+++ b/components/water_cooling_temperature_control_module/water_cooling_temperature_control_module.cpp
@@ -197,7 +197,7 @@ void WaterCoolingTemperatureControlModule::workloop() {
     peltier_set_power_level(out);
     i++;
     if (i % 10 == 0) {
-      int32_t fanspeed = out * 2;
+      int32_t fanspeed = abs(out) * 2;
       if (fanspeed > 100) fanspeed = 100;
       if (fanspeed < m_cfg.min_fanlevel) fanspeed = m_cfg.min_fanlevel;
       fan_start(fanspeed);