diff --git a/v2c/trydanmodbustcpmaster.cpp b/v2c/trydanmodbustcpmaster.cpp
index 9fbd9de..a324827 100644
--- a/v2c/trydanmodbustcpmaster.cpp
+++ b/v2c/trydanmodbustcpmaster.cpp
@@ -58,9 +58,14 @@ bool TrydanModbusTcpMaster::initialize()
     runReadSequence(buildInitSteps(), [this](bool ok) {
         m_initializing = false;
         if (ok) {
-            // Clamp to safe IEC 61851 bounds in case firmware reports unusual values.
-            m_minIntensity = qMax(6, m_minIntensity);
-            m_maxIntensity = qMin(32, m_maxIntensity);
+            // qBound to IEC 61851 absolute limits [6, 32].  The real installation
+            // ceiling comes from MaxIntensity read above (a 16 A mono Trydan reports
+            // 16, not 32).  The lower guard (qMax 6 was wrong for aberrant 0 returns:
+            // qMin(32, 0)=0 → maxIntensity()==0 → every setpoint gets clamped to 0
+            // and then the <6 A path pauses charging silently).  qBound floors to 6
+            // on a spurious 0 and caps to 32 on a spurious 65535.
+            m_minIntensity = qBound(6, m_minIntensity, 32);
+            m_maxIntensity = qBound(6, m_maxIntensity, 32);
         }
         emit initializationFinished(ok);
     });