From f8cb1e30eb3546b00fa58e20779bd4295df84c70 Mon Sep 17 00:00:00 2001
From: Kevin O'Connor <kevin@koconnor.net>
Date: Sat, 17 Oct 2020 20:48:25 -0400
Subject: [PATCH] heaters: Don't raise an error if PID Ki is set to zero

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
---
 klippy/extras/heaters.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/klippy/extras/heaters.py b/klippy/extras/heaters.py
index 9e2e148a..b86b0ecf 100644
--- a/klippy/extras/heaters.py
+++ b/klippy/extras/heaters.py
@@ -182,7 +182,9 @@ class ControlPID:
         self.min_deriv_time = heater.get_smooth_time()
         imax = config.getfloat('pid_integral_max', self.heater_max_power,
                                minval=0.)
-        self.temp_integ_max = imax / self.Ki
+        self.temp_integ_max = 0.
+        if self.Ki:
+            self.temp_integ_max = imax / self.Ki
         self.prev_temp = AMBIENT_TEMP
         self.prev_temp_time = 0.
         self.prev_temp_deriv = 0.