diff --git a/src/ir_Mitsubishi.cpp b/src/ir_Mitsubishi.cpp
index 3d74ebf68..286072bdc 100644
--- a/src/ir_Mitsubishi.cpp
+++ b/src/ir_Mitsubishi.cpp
@@ -62,7 +62,7 @@ const uint16_t kMitsubishiAcBitMark = 450;
 const uint16_t kMitsubishiAcOneSpace = 1300;
 const uint16_t kMitsubishiAcZeroSpace = 420;
 const uint16_t kMitsubishiAcRptMark = 440;
-const uint16_t kMitsubishiAcRptSpace = 17100;
+const uint16_t kMitsubishiAcRptSpace = 15500;
 const uint8_t  kMitsubishiAcExtraTolerance = 5;
 
 // Mitsubishi 136 bit A/C
diff --git a/src/ir_Mitsubishi.h b/src/ir_Mitsubishi.h
index 55afcdce6..85e61eefd 100644
--- a/src/ir_Mitsubishi.h
+++ b/src/ir_Mitsubishi.h
@@ -35,6 +35,7 @@
 //   Brand: Mitsubishi Electric,  Model: SG15D remote (MITSUBISHI_AC)
 //   Brand: Mitsubishi Electric,  Model: MSZ-ZW4017S A/C (MITSUBISHI_AC)
 //   Brand: Mitsubishi Electric,  Model: MSZ-FHnnVE A/C (MITSUBISHI_AC)
+//   Brand: Mitsubishi Electric,  Model: RH151 remote (MITSUBISHI_AC)
 
 #ifndef IR_MITSUBISHI_H_
 #define IR_MITSUBISHI_H_
diff --git a/test/ir_Mitsubishi_test.cpp b/test/ir_Mitsubishi_test.cpp
index 815d4f996..cbed3084e 100644
--- a/test/ir_Mitsubishi_test.cpp
+++ b/test/ir_Mitsubishi_test.cpp
@@ -353,7 +353,7 @@ TEST(TestSendMitsubishiAC, SendDataOnly) {
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s1300m450s1300m450s1300m450s1300m450s1300m450s420m450s420m450s420"
-      "m440s17100"
+      "m440s15500"
       "m3400s1750"
       "m450s1300m450s1300m450s420m450s420m450s420m450s1300m450s420m450s420"
       "m450s1300m450s1300m450s420m450s1300m450s420m450s420m450s1300m450s1300"
@@ -373,7 +373,7 @@ TEST(TestSendMitsubishiAC, SendDataOnly) {
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s1300m450s1300m450s1300m450s1300m450s1300m450s420m450s420m450s420"
-      "m440s17100",
+      "m440s15500",
       irsend.outputStr());
 }
 
@@ -409,7 +409,7 @@ TEST(TestSendMitsubishiAC, SendWithRepeats) {
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s1300m450s1300m450s1300m450s1300m450s1300m450s420m450s420m450s420"
-      "m440s17100",
+      "m440s15500",
       irsend.outputStr());
 
   irsend.reset();
@@ -435,7 +435,7 @@ TEST(TestSendMitsubishiAC, SendWithRepeats) {
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s1300m450s1300m450s1300m450s1300m450s1300m450s420m450s420m450s420"
-      "m440s17100"
+      "m440s15500"
       "m3400s1750"
       "m450s1300m450s1300m450s420m450s420m450s420m450s1300m450s420m450s420"
       "m450s1300m450s1300m450s420m450s1300m450s420m450s420m450s1300m450s1300"
@@ -455,7 +455,7 @@ TEST(TestSendMitsubishiAC, SendWithRepeats) {
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s1300m450s1300m450s1300m450s1300m450s1300m450s420m450s420m450s420"
-      "m440s17100"
+      "m440s15500"
       "m3400s1750"
       "m450s1300m450s1300m450s420m450s420m450s420m450s1300m450s420m450s420"
       "m450s1300m450s1300m450s420m450s1300m450s420m450s420m450s1300m450s1300"
@@ -475,7 +475,7 @@ TEST(TestSendMitsubishiAC, SendWithRepeats) {
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s1300m450s1300m450s1300m450s1300m450s1300m450s420m450s420m450s420"
-      "m440s17100",
+      "m440s15500",
       irsend.outputStr());
 }
 
@@ -518,7 +518,7 @@ TEST(TestSendMitsubishiAC, SendUnexpectedSizes) {
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s1300m450s1300m450s1300m450s1300m450s1300m450s420m450s420m450s420"
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
-      "m440s17100"
+      "m440s15500"
       "m3400s1750"
       "m450s1300m450s1300m450s420m450s420m450s420m450s1300m450s420m450s420"
       "m450s1300m450s1300m450s420m450s1300m450s420m450s420m450s1300m450s1300"
@@ -539,7 +539,7 @@ TEST(TestSendMitsubishiAC, SendUnexpectedSizes) {
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s1300m450s1300m450s1300m450s1300m450s1300m450s420m450s420m450s420"
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
-      "m440s17100",
+      "m440s15500",
       irsend.outputStr());
 }
 
@@ -751,7 +751,7 @@ TEST(TestMitsubishiACClass, MessageConstuction) {
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s420m450s420m450s420m450s420m450s1300m450s420m450s420m450s420"
       "m450s420m450s1300m450s1300m450s1300m450s1300m450s420m450s1300m450s420"
-      "m440s17100"
+      "m440s15500"
       "m3400s1750"
       "m450s1300m450s1300m450s420m450s420m450s420m450s1300m450s420m450s420"
       "m450s1300m450s1300m450s420m450s1300m450s420m450s420m450s1300m450s1300"
@@ -771,7 +771,7 @@ TEST(TestMitsubishiACClass, MessageConstuction) {
       "m450s420m450s420m450s420m450s420m450s420m450s420m450s420m450s420"
       "m450s420m450s420m450s420m450s420m450s1300m450s420m450s420m450s420"
       "m450s420m450s1300m450s1300m450s1300m450s1300m450s420m450s1300m450s420"
-      "m440s17100",
+      "m440s15500",
       irsend.outputStr());
 }
 
@@ -1712,3 +1712,74 @@ TEST(TestMitsubishiACClass, WeeklyTimerEnabled) {
   ac.setRaw(weekly_off);
   EXPECT_FALSE(ac.getWeeklyTimerEnabled());
 }
+
+// Decode a 'real' example for a MLZ-RX5017AS A/C
+TEST(TestDecodeMitsubishiAC, Issue1759) {
+  IRsendTest irsend(kGpioUnused);
+  IRrecv irrecv(kGpioUnused);
+  irsend.begin();
+
+  irsend.reset();
+  const uint16_t rawData[583] = {
+      3392, 1638, 456, 1220, 456, 1220, 456, 382, 454, 382, 456, 380, 456, 1222,
+      454, 380, 456, 382, 456, 1220, 456, 1220, 456, 382, 454, 1222, 454, 382,
+      456, 384, 454, 1222, 454, 1220, 454, 382, 456, 1220, 456, 1220, 456, 382,
+      456, 382, 456, 1220, 456, 380, 456, 382, 456, 1220, 456, 380, 456, 382,
+      456, 382, 456, 380, 456, 382, 456, 380, 458, 382, 456, 380, 456, 382, 456,
+      382, 456, 382, 456, 382, 456, 382, 456, 382, 456, 382, 456, 382, 456, 382,
+      456, 380, 458, 382, 456, 380, 456, 1220, 456, 380, 456, 382, 456, 382,
+      456, 382, 456, 382, 456, 1220, 456, 382, 456, 382, 456, 382, 456, 380,
+      456, 382, 456, 382, 456, 1220, 456, 382, 456, 382, 456, 382, 456, 382,
+      454, 382, 456, 382, 456, 382, 456, 382, 454, 384, 454, 382, 456, 380, 456,
+      382, 456, 382, 456, 382, 456, 382, 454, 382, 456, 382, 456, 382, 456, 382,
+      456, 1222, 454, 1220, 456, 382, 456, 382, 456, 382, 454, 1220, 456, 1220,
+      454, 1222, 454, 1220, 454, 382, 456, 382, 456, 382, 454, 382, 454, 382,
+      456, 382, 456, 382, 456, 382, 454, 382, 456, 380, 456, 382, 454, 382, 454,
+      384, 454, 382, 456, 382, 454, 384, 454, 382, 456, 382, 456, 382, 456, 384,
+      454, 384, 454, 382, 456, 382, 454, 382, 454, 384, 454, 382, 456, 1220,
+      456, 382, 456, 382, 454, 382, 456, 382, 456, 382, 454, 1220, 456, 382,
+      456, 382, 456, 382, 456, 382, 454, 382, 456, 382, 456, 382, 454, 382, 456,
+      382, 454, 382, 456, 382, 456, 382, 456, 382, 456, 382, 456, 382, 456, 382,
+      454, 1220, 456, 1220, 456, 380, 456, 1220, 456, 1220, 456, 1222, 454,
+      1220, 456, 1220, 456, 11280,
+      3392, 1638, 454, 1220, 456, 1220, 456, 382, 456, 382, 456, 382, 456, 1220,
+      456, 380, 456, 382, 456, 1220, 456, 1220, 454, 382, 456, 1220, 456, 382,
+      456, 382, 456, 1220, 456, 1222, 454, 382, 456, 1220, 456, 1220, 454, 382,
+      456, 382, 456, 1220, 454, 382, 456, 382, 456, 1220, 456, 382, 456, 382,
+      454, 382, 456, 382, 454, 382, 456, 382, 456, 382, 456, 382, 456, 382, 454,
+      382, 456, 382, 456, 382, 456, 382, 456, 382, 456, 382, 456, 382, 454, 382,
+      456, 382, 456, 382, 456, 382, 456, 1220, 456, 382, 456, 382, 456, 382,
+      454, 382, 456, 382, 456, 1220, 456, 380, 456, 382, 456, 382, 456, 382,
+      456, 382, 456, 382, 456, 1220, 456, 382, 454, 382, 456, 382, 454, 382,
+      456, 382, 456, 382, 456, 382, 456, 382, 456, 382, 456, 380, 456, 382, 456,
+      380, 456, 382, 456, 382, 456, 382, 454, 382, 456, 382, 454, 382, 456, 382,
+      456, 1220, 454, 1220, 456, 382, 456, 382, 456, 382, 454, 1220, 456, 1220,
+      454, 1222, 454, 1220, 454, 382, 456, 382, 456, 382, 456, 382, 456, 382,
+      456, 382, 456, 382, 454, 382, 456, 382, 456, 382, 456, 382, 456, 382, 456,
+      382, 456, 382, 456, 382, 454, 382, 456, 382, 456, 382, 456, 382, 456, 382,
+      456, 382, 456, 382, 456, 380, 456, 382, 456, 382, 456, 382, 456, 1220,
+      456, 382, 456, 382, 456, 382, 454, 382, 456, 382, 456, 1222, 454, 380,
+      456, 382, 456, 382, 456, 382, 456, 380, 456, 382, 456, 382, 454, 382, 454,
+      382, 456, 382, 456, 382, 456, 382, 456, 382, 456, 382, 456, 382, 456, 382,
+      456, 1220, 456, 1220, 454, 382, 456, 1222, 454, 1220, 454, 1220, 454,
+      1222, 454, 1220, 456};  // UNKNOWN 76CCC723
+  irsend.sendRaw(rawData, 583, 38);
+  irsend.makeDecodeResult();
+
+  ASSERT_TRUE(irrecv.decode(&irsend.capture));
+  ASSERT_EQ(MITSUBISHI_AC, irsend.capture.decode_type);
+  EXPECT_EQ(kMitsubishiACBits, irsend.capture.bits);
+  uint8_t expected[kMitsubishiACStateLength] = {
+      0x23, 0xCB, 0x26, 0x01, 0x00, 0x20, 0x08, 0x04, 0x00, 0xC0,
+      0x78, 0x00, 0x00, 0x00, 0x82, 0x00, 0x00, 0xFB};
+  EXPECT_STATE_EQ(expected, irsend.capture.state, irsend.capture.bits);
+  EXPECT_EQ(
+      "Power: On, Mode: 1 (Heat), Temp: 20C, Fan: 0 (Auto), "
+      "Swing(V): 0 (Auto), Swing(H): 0 (UNKNOWN), Clock: 20:00, "
+      "On Timer: 00:00, Off Timer: 00:00, Timer: -, Weekly Timer: Off, "
+      "10C Heat: Off, ISee: Off, Econo: Off, Absense detect: Off, "
+      "Direct / Indirect Mode: 0, Fresh: Off",
+      IRAcUtils::resultAcToString(&irsend.capture));
+  stdAc::state_t r, p;
+  ASSERT_TRUE(IRAcUtils::decodeToState(&irsend.capture, &r, &p));
+}