diff --git a/game/reconstructed/btl4galm.cpp b/game/reconstructed/btl4galm.cpp
index 162f7bb..501dedb 100644
--- a/game/reconstructed/btl4galm.cpp
+++ b/game/reconstructed/btl4galm.cpp
@@ -163,7 +163,8 @@ static const int kBTQuadModeMask[12] = { 0x1,0x1,0x1,0x1, 0x20,0x20,0x20,0x20, 0
 static const int kBTEngModeMask[12]  = { 0x2,0x4,0x8,0x10, 0x40,0x80,0x100,0x200, 0x800,0x1000,0x2000,0x4000 };
 static const int kBTQuadLamp[12]     = { 0xF,0xD,0xB,0x9, 0x27,0x25,0x23,0x21, 0x7,0x5,0x3,0x1 };
 static const int kBTEngBankTop[12]   = { 0xF,0xF,0xF,0xF, 0x27,0x27,0x27,0x27, 0x7,0x7,0x7,0x7 };
-static const int kBTCondenserLamp[6] = { 0x7, 0x2F,0x2E,0x2D,0x2B,0x2A };		// [condenserNumber]
+// (the per-condenser lamp table that used to live here is retired: condenser N
+//  resolves through BTFixedLampOf(N-1), the same six cooling-loop lamps.  #98)
 static const int kBTPlacementLamp[5] = { 0x29, 0x1A,0x1B,0x1C,0x1D };			// [auxScreenPlacement]
 
 //
@@ -287,9 +288,25 @@ void
 	{
 		if (the_condition == 2)		// CoolantLeaking
 		{
+			//
+			// #98 -- "I'm getting leaks but no indicators" / "the display
+			// buttons aren't ALWAYS flashing on leaking components".
+			//
+			// condenserNumber is 1-BASED (verified live: 'Condenser6' reports 6),
+			// which the old table's own comment said -- but the guard was
+			// `n >= 0 && n < 6`, a 0-based bound.  Condenser 6 was therefore
+			// REJECTED outright and could never annunciate, and the table it
+			// indexed was missing 0x2C, so condensers 4 and 5 flashed the NEXT
+			// loop's button instead of their own.  Three of six correct, one
+			// silent, two lying -- exactly the "sometimes" players reported.
+			//
+			// Condenser N drives cooling-loop N, whose six lamps are the same
+			// ones the coolingLoop1..6 codes resolve to, so use that verified
+			// map rather than a second, partly-wrong copy of it.
+			//
 			int n = BTCondenserNumber(the_subsystem);
-			if (n >= 0 && n < 6)
-				lamp_id = kBTCondenserLamp[n];
+			if (n >= 1 && n <= 6)
+				lamp_id = BTFixedLampOf(n - 1);		// loop N -> its own button
 		}
 	}
 	else if (BTSubsystemIsGenerator(the_subsystem))
@@ -331,6 +348,21 @@ void
 
 	if (lamp_id < 0)
 	{
+		// DIAGNOSTIC (#98): this is the SILENT path -- the item matched the
+		// condition but no lamp could be resolved for this subsystem, so nothing
+		// flashes and nothing was logged.  Players see "leaking but no
+		// indicator".  Name the subsystem and why it fell through, so the
+		// mapping gap is visible in a field log instead of being invisible.
+		if (BTLampLog())
+			DEBUG_STREAM << "[galarm] condition " << (int)the_condition
+				<< " code 0x" << std::hex << lamp_code << std::dec
+				<< " sub '" << (the_subsystem && the_subsystem->GetName()
+								? the_subsystem->GetName() : "?")
+				<< "' -> NO LAMP RESOLVED (condenser=" << BTSubsystemIsCondenser(the_subsystem)
+				<< " condenserNumber=" << (BTSubsystemIsCondenser(the_subsystem)
+											? BTCondenserNumber(the_subsystem) : -1)
+				<< " generator=" << BTSubsystemIsGenerator(the_subsystem)
+				<< ")" << std::endl << std::flush;
 		return;
 	}
 
diff --git a/scratchpad/night8/leaklamp.sh b/scratchpad/night8/leaklamp.sh
new file mode 100644
index 0000000..74962d6
--- /dev/null
+++ b/scratchpad/night8/leaklamp.sh
@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+# #98: which leaking components actually FLASH their panel button?
+#
+# Players: "the display buttons aren't always flashing or lighting up on leaking
+# components" (Oracle), "I'm getting leaks but no indicators" (Lynx), "I am
+# getting indicators sometimes" (Sauron).  Intermittent, not simply unwired.
+#
+# The chain is: HeatSink::GetStatusFlags raises bit 0x4 (CoolantLeaking) when
+# coolantActive && HeatModelActive -> MechTech::TechnicalAssistance sees the bit
+# CHANGE and calls ReportStatusSet -> GaugeAlarmManager::Activate -> the
+# per-item lamp resolve in btl4galm.cpp.
+#
+# BT_LAMP_LOG prints all three stages:
+#   [techstat] <sub> condition 2 SET / CLEARED     -- the edge the alarm rides
+#   [galarm]   ... -> lamp 0x.. FLASH              -- resolved and flashing
+#   [galarm]   ... -> NO LAMP RESOLVED (...)       -- matched but no lamp (NEW)
+#
+# Damage the mech steadily so heat subsystems take crits and start leaking.
+set -x
+. /c/git/bt411/scratchpad/night6/bench_common.sh
+cd /c/git/bt411/content || exit 1
+taskkill //F //IM btl4.exe > /dev/null 2>&1
+sleep 2
+sed "s/^map=.*/map=grass/; s/^time=.*/time=day/" MP.EGG > LEAK.EGG
+
+LOG=leaklamp_${1:-post}.log
+rm -f "$LOG"
+
+# Self-damage keeps crits landing on the heat family; autofire keeps heat LOAD
+# up, which is what coolantDraw (= zoneDamage x heatLoad) scales with.
+BT_LAMP_LOG=1 BT_COOL_LOG=1 BT_DMG_LOG=1 \
+BT_SPAWN_ENEMY=1 BT_AUTOFIRE=1 BT_AF_PERIOD=2 \
+BT_SELF_DAMAGE=4 BT_SELF_DAMAGE_ZONE=${2:-dz_rarm} \
+  bt_launch "$LOG" LEAK.EGG 0x03
+
+sleep 150
+taskkill //F //IM btl4.exe > /dev/null 2>&1
+sleep 2
+
+echo "=== coolant-leak status edges (condition 2) ==="
+grep -E "^\[techstat\].*condition 2" "$LOG" | sort | uniq -c | sort -rn | head -15
+echo "=== lamp resolution ==="
+grep -E "^\[galarm\]" "$LOG" | sed 's/[0-9a-fx]\{3,\}/N/g' | sort | uniq -c | sort -rn | head -12