Alarm 191 - Inverter Voltage Mismatch

Was bedeutet 191 ?

There is a voltage mismatch between the inverter and the system. Compressor operation will be disabled.

• Incorrect inverter part installed

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1. 1

   1. Power Cycle: Turn the unit's main power switch OFF, wait 60 seconds, then turn it back ON. This can reset minor glitches.

2. 2

   2. Check Breaker: Locate your home's electrical panel and ensure the breaker for your Lennox unit is not tripped. If it is, flip it completely OFF, then back ON.

3. 3

   3. Check Controller Display: Look for any additional messages or specific fault codes displayed on your PRODIGY 2.0 controller. Note them down if present.

4. 4

   4. Call a Professional: If the alarm persists after these steps, or if you notice any unusual smells, sounds, or visible damage, contact a qualified Lennox service technician. This issue often requires specialized tools and expertise to diagnose and fix safely.