MDVI30IN Gas Fireplace Parts

Majestic MDVI30IN

Find replacement parts, manuals, troubleshooting help, and compatibility information for the Majestic MDVI30IN Gas Insert.

Model Information

Majestic MDVI30IN is a Gas Insert configured for Natural Gas with a Electronic ignition/control type using the IntelliFire control system. Ruby Series.

Before ordering parts for this model, confirm the exact model number, gas type, ignition/control system, and serial number range. Some replacement parts may vary by gas type, control system, production date, or model notes.

Common Replacement Parts

Common replacement parts for this model may include pilot assemblies, gas valves, ignition modules, remotes, switches, blowers, or other service parts depending on the exact configuration.

Downloads

Parts List

IntelliFire Troubleshooting Wizard

Control System: IntelliFire

Interactive diagnostic guide for this fireplace system.

{"start":"if_start","steps":{"if_start":{"title":"IntelliFire Troubleshooting","question":"What problem are you having with this IntelliFire system?","help":"IntelliFire is an intermittent pilot ignition system. It should be diagnosed as an electrical ignition system, not as a standing pilot millivolt system. Choose the symptom that best matches the fireplace behavior.","professionalHelp":"This guide involves gas, ignition, and electrical diagnosis. If you are not qualified to service gas appliances, stop and request professional help.","showContactForm":true,"stop":false,"options":[{"text":"Ignitor/module makes noise, but no spark","next":"if_no_spark","pathText":"Ignitor/module makes noise, but no spark","showContactForm":true},{"text":"Pilot will not light, no noise or spark","next":"if_no_noise_no_spark","pathText":"Pilot will not light, no noise or spark","showContactForm":true},{"text":"Pilot lights, but keeps sparking","next":"if_continues_spark","pathText":"Pilot lights but continues to spark","showContactForm":true},{"text":"Pilot sparks, but pilot will not light","next":"if_pilot_sparks_no_light","pathText":"Pilot sparks but pilot will not light","showContactForm":true},{"text":"Pilot stays lit, but burner will not turn on","next":"if_burner_no_light","pathText":"Pilot stays lit but burner will not turn on","showContactForm":true},{"text":"Burner lights, but cycles off and on","next":"if_burner_cycles","pathText":"Burner cycles off and on","showContactForm":true},{"text":"Wall switch / remote / cold climate question","next":"if_accessory_menu","pathText":"Accessory or control question","showContactForm":true}]},"if_no_spark":{"title":"Ignitor Makes Noise, But No Spark","question":"The ignitor or module makes sparking noise, but no spark is visible at the pilot.","help":"Possible causes include reversed sensor/ignitor wires, loose connections, wiring shorts, incorrect ignitor gap, a cracked pilot insulator, or a failed module. Verify the white sensor wire is on S and the orange ignitor wire is on I. Confirm the ignitor gap is approximately 1/8 inch. If there is no spark at the module I terminal during a module spark test, the module may need replacement. If spark exists at the module but not at the pilot, inspect the pilot assembly, ignitor wire, and ceramic insulator.","professionalHelp":"Ignition testing should be performed by a qualified service technician.","showContactForm":true,"stop":true,"options":[]},"if_no_noise_no_spark":{"title":"Pilot Will Not Light - No Noise or Spark","question":"There is no ignitor noise and no spark when the fireplace is turned on.","help":"Check transformer power under load at the module. A good transformer should read approximately 2.8 to 3.2 VAC with the ON/OFF switch on. Remove and reseat the wiring harness at the module. Verify wiring continuity, wall switch wiring, and that the module ground wire is securely grounded to the fireplace chassis. If power and wiring are correct but the module does not spark, the module may be defective.","professionalHelp":"This requires electrical testing. Stop and request professional help if you are not qualified.","showContactForm":true,"stop":true,"options":[]},"if_continues_spark":{"title":"Pilot Lights But Continues Sparking","question":"The pilot lights, but the system keeps sparking and the main burner does not ignite.","help":"If the pilot lights but continues sparking, flame rectification has not occurred. Check for loose or shorted sensor wire connections, poor ground, contaminated sensor rod, damaged pilot assembly, incorrect pilot flame impingement, or a failed module. Clean the sensor rod with emery cloth. Verify the flame fully engulfs the sensor rod. Perform a continuity test to confirm the sensor rod is not shorted to the pilot hood, pilot base, pilot bracket, or fireplace chassis.","professionalHelp":"Flame rectification diagnosis requires proper testing. Request professional help if unsure.","showContactForm":true,"stop":true,"options":[]},"if_pilot_sparks_no_light":{"title":"Pilot Sparks But Will Not Light","question":"The pilot is sparking, but the pilot flame does not light.","help":"Verify the incoming gas shutoff valve is open and inlet gas pressure is within specification. Confirm the ignitor gap is approximately 1/8 inch. Verify the module is grounded. If the pilot is sparking but gas is not reaching the pilot, test module voltage output and valve/pilot solenoid readings. Possible causes include gas supply, spark gap, grounding, module output, valve, or pilot solenoid issue.","professionalHelp":"Gas pressure and valve testing should be performed by a qualified service technician.","showContactForm":true,"stop":true,"options":[]},"if_burner_no_light":{"title":"Pilot Lit But Burner Will Not Turn On","question":"The pilot lights and stops sparking, but the main burner does not turn on.","help":"If the pilot lights and stops sparking, flame rectification has occurred. Check all valve and module wiring connections. Verify the wiring harness is fully seated and wires are in the correct order. Check that the green valve spade terminal is not bent or touching metal. If a Cabin-Kit is installed, verify that the cold climate switch is wired correctly. Test module output and valve solenoid resistance. Typical valve readings with no wires attached are about 37 ohms for the pilot solenoid and 55 ohms for the burner solenoid.","professionalHelp":"Voltage and ohm testing should be performed by a qualified service technician.","showContactForm":true,"stop":true,"options":[]},"if_burner_cycles":{"title":"Burner Cycles Off and On","question":"The burner lights but cycles off and on during operation.","help":"Possible causes include over-drafting, over-firing, poor flame rectification, venting issues, remote/wall switch/thermostat problems, low batteries, weak transformer output, or cold climate startup behavior. Verify restrictor requirements, burner orifice size, altitude deration, manifold pressure, sensor grounding, and wiring. Troubleshoot first with the manual ON/OFF rocker switch to rule out remote, thermostat, or wall switch problems.","professionalHelp":"Cycling problems may involve venting, gas pressure, electrical controls, or flame rectification. Request professional diagnosis.","showContactForm":true,"stop":true,"options":[]},"if_accessory_menu":{"title":"IntelliFire Accessory and Control Questions","question":"Which IntelliFire accessory or control topic do you need help with?","help":"These items are common IntelliFire support topics and may affect operation even when the core ignition system is functioning correctly.","professionalHelp":"If wiring or live voltage testing is involved, request professional help.","showContactForm":true,"stop":false,"options":[{"text":"Wall switch wiring","next":"if_wall_switch","pathText":"Wall switch wiring","showContactForm":true},{"text":"Cabin-Kit / cold climate mode","next":"if_cabin_kit","pathText":"Cabin-Kit or cold climate mode","showContactForm":true},{"text":"Ground strap / flame rectification","next":"if_ground_strap","pathText":"Ground strap or flame rectification","showContactForm":true},{"text":"Gas conversion information","next":"if_gas_conversion","pathText":"Gas conversion information","showContactForm":true},{"text":"Gas pressure specifications","next":"if_pressure_specs","pathText":"Gas pressure specifications","showContactForm":true}]},"if_wall_switch":{"title":"Wall Switch Wiring","question":"Check the wall switch wiring.","help":"IntelliFire systems require constant power to the module. Do not switch the 120V supply to the fireplace junction box as the control method. The wall switch should connect to the low-voltage wall switch/remote leads, not interrupt power to the transformer or module.","professionalHelp":"Incorrect wall switch wiring can create unsafe or unreliable operation. Request professional help if wiring is uncertain.","showContactForm":true,"stop":true,"options":[]},"if_cabin_kit":{"title":"Cabin-Kit / Cold Climate Mode","question":"Check Cabin-Kit or cold climate operation.","help":"The cold climate feature allows the pilot to remain lit when the main burner is off. A Cabin-Kit may include a cold climate switch and relay for battery backup. Verify the Cabin-Kit wiring if the pilot remains on unexpectedly, the burner does not respond correctly, or batteries drain unexpectedly.","professionalHelp":"Cabin-Kit wiring should be checked by a qualified service technician.","showContactForm":true,"stop":true,"options":[]},"if_ground_strap":{"title":"Ground Strap / Flame Rectification","question":"Check flame rectification and ground strap condition.","help":"Some IntelliFire systems may cycle during startup due to pilot instability or weak flame rectification. A ground strap can improve flame rectification on certain pilot assemblies. Verify proper grounding, sensor cleanliness, and flame contact with the sensor rod.","professionalHelp":"Grounding and flame sensing should be diagnosed carefully by a qualified technician.","showContactForm":true,"stop":true,"options":[]},"if_gas_conversion":{"title":"Gas Conversion Information","question":"Gas conversion should only be done with the correct approved conversion kit.","help":"Use only the manufacturer-approved conversion kit for the exact fireplace model and serial number range. Conversion kits include required parts, instructions, and labels. Verify inlet and manifold pressure after conversion. Do not use unauthorized valve/regulator parts or materials.","professionalHelp":"Gas conversions must be performed by a certified gas technician.","showContactForm":true,"stop":true,"options":[]},"if_pressure_specs":{"title":"Gas Pressure Specifications","question":"Verify inlet and manifold gas pressure.","help":"Typical IntelliFire pressure specifications: natural gas inlet pressure 4.5 to 7 inches W.C.; propane inlet pressure 11 to 14 inches W.C.; natural gas manifold pressure 3.5 inches W.C.; propane manifold pressure 10 inches W.C. Always verify against the appliance rating plate and installation manual.","professionalHelp":"Gas pressure testing should be performed only by a qualified service professional.","showContactForm":true,"stop":true,"options":[]}}}