Monessen Hearth 624DV(ST

Questions and Answers

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David BrockAug 12, 2025
What to do if my Monessen Hearth 624DV(ST Indoor Fireplace spark ignitor will not light pilot?
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  Jacob DiazAug 12, 2025
  If the spark ignitor on your Monessen Hearth Indoor Fireplace isn't lighting the pilot, here's what you can check: * Ensure the wire is connected to the ignitor. * Check for a spark at the electrode and pilot. If there's no spark and the electrode wire is properly connected, replace the pilot assembly. * Verify that the remote/manual shut-off valve is open. Low gas pressure might be due to bent or restricted lines; consult a plumber or gas supplier. * If using Propane/LPG, check the tank level and refill if necessary.
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Joan MorrisAug 16, 2025
What to do if Monessen Hearth Indoor Fireplace pilot will not stay lit?
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  Andrew CabreraAug 16, 2025
  If the pilot light on your Monessen Hearth Indoor Fireplace won't stay lit after following the lighting instructions, consider these potential causes: * **Defective thermocouple:** Ensure the pilot flame impinges on the thermocouple. Clean or adjust the pilot for maximum flame impingement. Verify the thermocouple connection at the gas valve is fully inserted and tight. Disconnect the thermocouple from the valve and test it with a millivolt meter. If the reading is less than 15 mV, replace the pilot assembly. * **Defective valve:** If the thermocouple produces more than 15 mV, the valve may be faulty and needs replacement.
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Charles BrownAug 25, 2025
Why Monessen Hearth Indoor Fireplace system does not run until ON/OFF switch is in 'OFF' position?
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  John LopezAug 25, 2025
  Check the following to troubleshoot why your Monessen Hearth Indoor Fireplace system only runs when the ON/OFF switch is in the 'OFF' position: * Line voltage (120VAC). * Low voltage transformer (19.5 minimum VAC). * ON/OFF switch. * Wiring connections.
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Teresa ParkAug 27, 2025
What to do if ignition cable shows signs of melting or buckling on Monessen Hearth Indoor Fireplace?
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  Paula MartinezAug 27, 2025
  Take protective action to shield the ignition cable and boot from excessive temperatures on your Monessen Hearth Indoor Fireplace.
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cheryl46Aug 31, 2025
What to do if Monessen Hearth 624DV(ST Indoor Fireplace pilot flame is not covering the flame rod?
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  Jessica RhodesAug 31, 2025
  Adjust the pilot flame on your Monessen Hearth Indoor Fireplace. If the problem persists, replace the module.
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Joseph YoungSep 4, 2025
What to do if Monessen Hearth Indoor Fireplace gas control module does not work or has poor connections?
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  jasonlucasSep 4, 2025
  Replace the module in your Monessen Hearth Indoor Fireplace.
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Aaron MataSep 7, 2025
What to do if I cannot find 24VAC across MV-MVPV terminal on Monessen Hearth 624DV(ST Indoor Fireplace?
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  jacquelineolsonSep 7, 2025
  Replace the module on your Monessen Hearth Indoor Fireplace if there is no voltage.
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nicholas72Nov 18, 2025
What to do if my Monessen Hearth 624DV(ST Indoor Fireplace burner will not ignite?
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  Matthew GreenNov 18, 2025
  If the pilot is burning, the valve knob is 'ON,' and the switch is 'ON' or 'RS,' but the burner on your Monessen Hearth Indoor Fireplace won't ignite, consider the following: * Check the switch and wiring for proper connection. Use jumper wires across the switch terminals; if the burner ignites, replace the switch. Repeat this process on the remote control. If the burner ignites, replace the remote control. Place a jumper wire across the wires at the gas valves (terminals marked TH and TP/TH). If the burner ignites, the wires are faulty and should be replaced. * Adjust the pilot flame if it is not close enough to the thermopile. * Check that the thermopile wire connections are tight and that the thermopile is fully inserted into the pilot assembly. Check the thermopile with a milliv...