diff --git a/Cargo.lock b/Cargo.lock
index 7a6ab1c..dfbd3a9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2633,7 +2633,7 @@ dependencies = [
 
 [[package]]
 name = "tesla-charge-controller"
-version = "1.0.27"
+version = "1.0.28"
 dependencies = [
  "chrono",
  "clap 4.4.11",
diff --git a/Cargo.toml b/Cargo.toml
index 70e2d9a..f0ec111 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "tesla-charge-controller"
-version = "1.0.27"
+version = "1.0.28"
 edition = "2021"
 license = "MITNFA"
 description = "Controls Tesla charge rate based on solar charge data"
diff --git a/src/config.rs b/src/config.rs
index 90a5fd2..545b76d 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -211,8 +211,8 @@ impl Config {
 
     fn validate(&mut self) {
         self.shutoff_voltage = self.shutoff_voltage.clamp(40.0, 60.0);
-        self.max_rate = self.max_rate.clamp(1, 30);
-        self.min_rate = self.min_rate.clamp(1, self.max_rate);
+        self.max_rate = self.max_rate.clamp(0, 30);
+        self.min_rate = self.min_rate.clamp(0, self.max_rate);
         self.duty_cycle_too_high = self.duty_cycle_too_high.clamp(0.0, 1.0);
         self.duty_cycle_too_low = self.duty_cycle_too_low.clamp(0.0, 1.0);
         self.pid_controls.proportional_gain = self.pid_controls.proportional_gain.clamp(0.0, 50.0);
diff --git a/src/server/mod.rs b/src/server/mod.rs
index 2704551..15db8f1 100644
--- a/src/server/mod.rs
+++ b/src/server/mod.rs
@@ -155,7 +155,7 @@ async fn set_max(limit: i64, remote_addr: std::net::IpAddr) {
 #[post("/set-min/<limit>")]
 async fn set_min(limit: i64, remote_addr: std::net::IpAddr) {
     log::warn!("setting min: {remote_addr:?}");
-    let limit = limit.clamp(3, access_config().max_rate);
+    let limit = limit.clamp(0, access_config().max_rate);
     write_to_config().min_rate = limit;
 }
 
diff --git a/webapp/index.html b/webapp/index.html
index 6e423f0..f78988d 100644
--- a/webapp/index.html
+++ b/webapp/index.html
@@ -22,10 +22,10 @@
 
 		<div id="rate-control">
 			<h3>Charge rate:</h3>
-			<input type="number" id="max-rate" max="15" min="3" onchange="change_max()" autocomplete="off" />
+			<input type="number" id="max-rate" max="15" min="0" onchange="change_max()" autocomplete="off" />
 			<button id="set-maximum" onclick="set_maximum()" disabled>Set maximum</button>
 			<br><br>
-			<input type="number" id="min-rate" max="15" min="3" onchange="change_min()" autocomplete="off" />
+			<input type="number" id="min-rate" max="15" min="0" onchange="change_min()" autocomplete="off" />
 			<button id="set-minimum" onclick="set_minimum()" disabled>Set minimum</button>
 		</div>
 		<div id="info"></div>