diff --git a/app/igneum-app/ui/app.js b/app/igneum-app/ui/app.js
index 71211222..6645dcaf 100644
--- a/app/igneum-app/ui/app.js
+++ b/app/igneum-app/ui/app.js
@@ -695,7 +695,7 @@ var View = (function () {
       }
       return out;
     }
-    out.label = st.sweep === false ? 'Not tuned: Ember Tune is off' : 'Not tuned yet'; out.sub = 'starts after 2 min of steady mining'; return out;
+    out.label = st.sweep === false ? 'Not tuned: Ember Tune is off' : 'Not tuned yet'; out.sub = st.sweep === false ? 'Tune starts one by hand' : 'starts after 2 min of steady mining'; return out;
   }
   // the Tuning strip's fleet saving: watts and £ a day summed over the tuned cards
   function fleetSaving(cards, s, now, pence) {
diff --git a/app/igneum-app/ui/view.test.mjs b/app/igneum-app/ui/view.test.mjs
index 5c09d056..d113c5c5 100644
--- a/app/igneum-app/ui/view.test.mjs
+++ b/app/igneum-app/ui/view.test.mjs
@@ -369,7 +369,9 @@ test('Ember on the row (miner-ui-4): the flame fill, before -> after, the saving
   const measured = V.ember(card({ tune_line: 'Measured: 122.3 MH/s at 410 W (0.298 MH/W)', tune_source: 'baseline', tune_control: false, sweep_at: NOW - 600, sweep_note: 'measure only until Power control is on in Settings (Windows asks for administrator rights once)', sweep_state: 'idle' }), settings({ power_control: false }), NOW);
   assert.equal(measured.kind, 'measured'); assert.equal(measured.label, 'Measured, not tuned'); assert.equal(measured.sub, 'Power control is off'); assert.equal(measured.fill, 0.5);
   const idle = V.ember(card({ sweep_state: 'idle', sweep_note: '', tune_line: '', sweep_at: 0 }), settings(), NOW);
-  assert.equal(idle.kind, 'idle'); assert.equal(idle.fill, 0); assert.equal(idle.label, 'Not tuned yet');
+  assert.equal(idle.kind, 'idle'); assert.equal(idle.fill, 0); assert.equal(idle.label, 'Not tuned yet'); assert.equal(idle.sub, 'starts after 2 min of steady mining');
+  const off = V.ember(card({ sweep_state: 'idle', sweep_note: '', tune_line: '', sweep_at: 0 }), settings({ sweep: false }), NOW);
+  assert.equal(off.label, 'Not tuned: Ember Tune is off'); assert.equal(off.sub, 'Tune starts one by hand');
   assert.equal(V.ember(card({ vendor: 'other', kind: 'integrated', sweep_supported: false }), settings(), NOW).kind, 'none');
   assert.equal(V.fleetSaving([tuned, card({ key: 'b', sweep_state: 'idle', tune_line: '', sweep_at: 0 })], settings(), NOW, 28), 'Ember saves 84 W, £0.56 a day across 1 tuned card');
   assert.equal(V.fleetSaving([card({ sweep_state: 'idle', tune_line: '', sweep_at: 0 })], settings(), NOW, 28), '');
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