 #if !defined(ENABLE_FHT8VSIMPLE)
   OTV0P2BASE::serialPrintlnAndFlush(F("="));
 #else
-  TemperatureC16.read(); // Force read as not polled in main loop for COHEAT...
+  // Force sensor read as not polled in main loop for COHEAT... (And flush any serial before messing with clocks, etc.)
+  OTV0P2BASE::flushSerialSCTSensitive();
+  TemperatureC16.read();
   const bool neededWaking = OTV0P2BASE::powerUpSerialIfDisabled<V0P2_UART_BAUD>(); // FIXME
   // Stats line starts with distinguished marker character '='.
   Serial.print((char) OTV0P2BASE::SERLINE_START_CHAR_STATS);

  {

#ifdef ALLOW_CC1_SUPPORT_RELAY
  // If CC1 replay then allow +CC1 ! command to send an alert to the hub.
  // Full command is:
  //    +CC1 !
  // This unit's housecode is used in the frame sent.

// Force-enable RX if not already so.
#define ENABLE_RADIO_RX
#define ENABLE_CONTINUOUS_RX // was #define CONFIG_IMPLIES_MAY_NEED_CONTINUOUS_RX true

// Indicate that the system is broken in an obvious way (distress flashing of the main UI LED).
// DOES NOT RETURN.
