diff --git a/lib/Entity/Schedule.php b/lib/Entity/Schedule.php
index c76263d78a..7649615986 100644
--- a/lib/Entity/Schedule.php
+++ b/lib/Entity/Schedule.php
@@ -765,6 +765,10 @@ public function validate()
         if ($this->isPriority < 0) {
             throw new InvalidArgumentException(__('Priority must be 0 or a positive number'), 'isPriority');
         }
+        // Check max plays per hour is positive
+        if ($this->maxPlaysPerHour < 0) {
+            throw new InvalidArgumentException(__('Maximum plays per hour must be 0 or a positive number'), 'maxPlaysPerHour');
+        }
 
         // Run some additional validation if we have a recurrence type set.
         if (!empty($this->recurrenceType)) {
diff --git a/views/schedule-form-add.twig b/views/schedule-form-add.twig
index cd36778700..1c9aeda8d8 100644
--- a/views/schedule-form-add.twig
+++ b/views/schedule-form-add.twig
@@ -237,7 +237,7 @@
 
                         {% set title %}{% trans "Maximum plays per hour" %}{% endset %}
                         {% set helpText %}{% trans "Limit the number of times this event will play per hour on each display. For unlimited plays set to 0." %}{{ forms.playerCompat("R308", "", "", "", "R306", "") }}{% endset %}
-                        {{ forms.number("maxPlaysPerHour", title, 0, helpText, 'max-plays-control') }}
+                        {{ forms.number("maxPlaysPerHour", title, 0, helpText, 'max-plays-control', "", "", "", "0") }}
 
                         {% set title %}{% trans "Run at CMS Time?" %}{% endset %}
                         {% set helpText %}{% trans "When selected, your event will run according to the timezone set on the CMS, otherwise the event will run at Display local time" %}{% endset %}
diff --git a/views/schedule-form-edit.twig b/views/schedule-form-edit.twig
index 0dbd8f5c90..f2907a7790 100644
--- a/views/schedule-form-edit.twig
+++ b/views/schedule-form-edit.twig
@@ -234,7 +234,7 @@
 
                         {% set title %}{% trans "Maximum plays per hour" %}{% endset %}
                         {% set helpText %}{% trans "Limit the number of times this event will play per hour on each display. For unlimited plays set to 0." %}{{ forms.playerCompat("R308", "", "", "", "R306", "") }}{% endset %}
-                        {{ forms.number("maxPlaysPerHour", title, event.maxPlaysPerHour, helpText, 'max-plays-control') }}
+                        {{ forms.number("maxPlaysPerHour", title, event.maxPlaysPerHour, helpText, 'max-plays-control', "", "", "", "0") }}
 
                         {% set title %}{% trans "Run at CMS Time?" %}{% endset %}
                         {% set helpText %}{% trans "When selected, your event will run according to the timezone set on the CMS, otherwise the event will run at Display local time" %}{% endset %}