750-500 DEXEN ELECTRONIC GAS VALVE - – Natural Gas – Electronic
750-500 DEXEN ELECTRONIC GAS VALVE - – Natural Gas – Electronic
✔ In stock — Usually ships in 1–2 business days
What This Part Does
The 750-500 gas valve is a Natural Gas Electronic control valve that regulates the flow of gas to both the pilot and main burner.
In an electronic (IPI) system, the valve works with the control module to manage ignition, operation, and safety functions.
When a call for heat is made from a thermostat, wall switch, or remote, the control module signals the valve to open. Gas is first directed to the pilot assembly for ignition. Once the pilot flame is proven, the valve opens further to supply gas to the main burner.
This valve also serves a critical safety function. It remains closed when no call for heat is present and automatically shuts off gas flow if a proper flame signal is not detected or if a fault occurs.
Proper valve operation is essential for safe ignition, stable flame performance, and reliable fireplace operation.
Not sure if this is the right part?
Before ordering, check the following:
- Locate your model number (typically behind the lower louver or inside the control compartment)
- Confirm your unit uses a Electronic system
- Confirm your gas type is natural gas
- Compare your existing valve to the images provided
⚠️ This part is NOT for a different ignition/control system systems
⚠️ This part is NOT for propane (LP) units
Compatible Models
Heatilator Gas Fireboxs:
GDST60Li
Heatilator Gas Fireplaces:
CB4236IR
CB4236MIR
CB4842IR
CB4842MIR
CD4236ILR
CD4236IR
CD4236MILR
CD4236MIR
CD4842ILR
CD4842IR
CD4842MILR
CD4842MIR
CNXT4236IH
CNXT4236IT
CNXT4842IH
CNXT4842IT
CNXT70EH
CNXT70ET
CNXT70IH
CNXT70IPLUS
CNXT70IT
CNXT90EH
CNXT90ET
CNXT90IH
CNXT90IT
EVEREST
GB4336I
GB4336IL
GB4942I
GB4942IL
GBCL36I
GBCR36I
GBFL36I
GBST36I
GBST36LI
GCBC60I
GCBC60LI
GCBC80I
GCBC80LI
GCDC60I
GCDC60LI
GCDC80I
GCDC80LI
GDCH60I
GDCH60IV
GDCH60LI
GDCH60LIV
GDCL4136I
GDCL60I
GDCL60LI
GDCR4136I
GDCR60I
GDCR60LI
GDFL4136I
GDFL60I
GDFL60LI
GDST3831I
GDST4336I
GDST5244I
GDST60i
GDST60IV
GDST60LIV
IB75
ICON100IH
ICON100IT
ICON60IH
ICON60IT
IDV4833IH
IDV4833IT
IDV6247IH
IDV6247IT
NB3630I
NB3630MI
NB3933I
NB3933MI
NB4236I
NB4236ILPLUS
NB4236IPLUS
NB4236MI
NB4842I
NB4842MI
ND3630MI
ND3933MI
ND4236I
ND4236IL
ND4236MI
ND4842I
ND4842IL
ND4842MI
NDV4236IL-B
TITAN
Heatilator Gas Inserts:
NDI30
NDI30C
NDI35
NDI35C
Heat-N-Glo Gas Fireplaces:
6000BECIPI
6000BEIPI
6000CFOAKIPI
6000GBVIPI
6000GCFIPI
6000GIPI
6000GLIPI R
6000GLIPI S
6000GLXIPI R
6000GLXIPI S
6000PLUS
6000TRIIPI
6000TROAKIPI
6000TRXIIPI
6000TVOAKIPI
6100PLUS
8000CFOAKIPI
8000TRDIPI
8000TROAKIPI
8000TVDIPI
8000TVOAKIPI
ADVR3428I
ADVR3428IL
ADVT3428I
ADVT3428IL
BE41BIPI
BE41IPIC
Cerona36
CERONA42
COSMOGXTIPI
COSMOSXTIPI
CRESCENTII
ESC42ST
ESCAPE36DV
ESCAPE42DV
GBFL4136I
GBST4336I
GEM36
GEM36B
GEM42
GEM42B
LCOR36TRBIPI
LCORHVBIPI
LCORHVIPI
LCORIPI
LUX60
NBV3630I
NBV3933I
NBV4236I
NBV4842I
NDV3630I
NDV3630IL
NDV3933I
NDV3933IL
NDV4236I
NDV4236IL
NDV4842I
NDV4842IL
PASSAGE
PIER36TRBIPI
PIER36TRIPI
PIERHVBIPI
PIERHVIPI
PIERPVIPI
PIERTRCIPI
PIERTVFLIPI
RCOR36TRBIPI
RCORHVBIPI
RCORHVIPI
RCORTRCIPI
RED40
RED40ST
RED60
SL350TRSIPI
SL36ULTIMATE
SL550BEIPIB
SL550F
SL550TRIPIC
SL550TRIPID
SL550TRIPIE
SL550TRSIPID
SL550TRSIPIE
SL550TVIPIC
SL550TVIPID
SL550TVIPIE
SL750F
SL750TRIPIC
SL750TRIPID
SL750TRIPIE
SL750TRSFHHIPI
SL750TRSIPID
SL750TRSIPIE
SL750TVIPIC
SL750TVIPID
SL750TVIPIE
SL950TRIPIC
SL950TRIPID
SL950TRIPIE
SL950TVIPIC
SL950TVIPID
SL950TVIPIE
SLF550TRIPIE
SOHO24
SOULSTICE
ST36TRBIPI
ST36TRIPI
ST36TVBIPI
ST42TVFLIPI
ST550TIPI
ST550TMIPI
STHVBIPI
STHVIPI
STPVIPI
STTRCIPI
Heat-N-Glo Gas Inserts:
PROVI30IPI
Heat-N-Glo Gas Stoves:
PALOMA
PALOMAMOD
HHT Gas Fireplaces:
DV3732
DV3732SBI
Majestic Gas Fireplaces:
MERC32
QUARTZ32IN
QUARTZ36IN
QUARTZ42IN
Majestic Gas Inserts:
Jasper30IN
Quadra-Fire Gas Fireplaces:
QV36AFB
QVPIERHVIPI
QVSTHVIPI
Vermont Castings Gas Stoves:
OXDV30IPI
System Type
This is an electronic ignition system, commonly called an IPI system or intermittent pilot ignition system. Instead of keeping a pilot flame burning continuously, the fireplace lights the pilot only when there is a call for heat.
IPI systems use a control module to manage ignition, flame sensing, gas valve operation, and safety shutdown functions.
This system commonly includes:
- Control module — controls spark, flame sensing, and gas valve operation.
- Electronic gas valve — opens and closes gas flow to the pilot and main burner.
- Igniter / flame sensor assembly — creates spark and confirms flame presence.
- Battery backup or power supply — provides operating power for ignition and control functions.
These systems offer improved efficiency, remote-control compatibility, and added safety features, but they also include more electronic components than a millivolt system.
Common Problems This Valve Fixes
If your fireplace uses an electronic ignition (IPI) system, the gas valve works together with the control module to regulate gas flow to the pilot and main burner. When the valve begins to fail, it can cause ignition issues, shutdowns, or inconsistent operation.
Replacing the valve often resolves the following problems:
- Spark is present but pilot will not light
The valve may not be opening to allow gas to the pilot assembly. - Pilot lights but main burner will not turn on
The valve is not opening to supply gas to the burner after pilot flame is proven. - Fireplace starts but shuts down shortly after
The valve may be failing to maintain proper gas flow during operation. - Delayed ignition or small “whoosh” at startup
Inconsistent gas delivery from the valve can cause delayed burner ignition. - No gas flow to pilot or burner
A failed valve may prevent gas from reaching the ignition system entirely. - Clicking or sparking continues without ignition
The system is attempting to light, but the valve is not delivering gas. - Intermittent operation or random shutdowns
Internal valve components may be failing or overheating. - Weak or unstable burner flame
Improper gas regulation inside the valve can affect flame performance.
Important Note
Many of these symptoms can also be caused by a faulty control module, flame sensor issues, igniter problems, wiring faults, or improper gas pressure. Proper diagnosis is strongly recommended before replacing the valve.
Warranty Information
This product includes a 12-month warranty from the date of purchase. This warranty covers defects in materials or workmanship under normal operating conditions.
Fireplace components must be properly installed and matched to the correct system (millivolt vs IPI, natural gas vs propane).
This warranty does NOT cover:
• Improper installation or incorrect application
• Use with the wrong gas type (NG vs LP)
• Misdiagnosis of the issue
• Damage caused by other failing components
• Normal wear and tear
• Labor, service, or diagnostic time
Because many fireplace issues can be caused by multiple components, we strongly recommend confirming the diagnosis before replacing parts.
We are happy to assist with this. Proof of purchase is required for all warranty claims. Please contact us prior to removal or replacement of the part so we can help verify the issue and guide the warranty process.
How do I know if my valve is bad?
Common signs of a failing gas valve include the pilot staying lit but the burner not turning on, no response from a wall switch or remote, intermittent operation, or the burner shutting off unexpectedly.
In some cases, the valve may fail to open and allow gas to flow, even though the system is calling for heat. You may also notice inconsistent flame behavior or complete loss of burner function.
Before replacing the valve, it is important to verify that other components such as the thermopile, thermocouple, ignition module, or wiring are functioning properly, as these can cause similar symptoms.
How difficult is this part to replace?
Replacing a gas valve is considered a moderate to advanced repair because it involves working with gas lines and critical safety components.
The process typically requires shutting off the gas supply, disconnecting and reconnecting fittings, and ensuring all connections are properly sealed and leak-free. In many cases, adjustments or system checks are also needed after installation.
For safety and proper operation, installation is recommended to be performed by a qualified technician.
Is this a safe DIY repair?
Gas valve replacement involves working with gas lines and safety-critical components, so it is generally not recommended as a DIY repair for most homeowners.
Improper installation can result in gas leaks, unsafe operation, or damage to the fireplace system. Correct procedures, proper tools, and leak testing are essential to ensure safe operation.
For safety and reliability, installation is recommended to be performed by a qualified technician.
Do I need any special tools to install this?
Gas valve replacement typically requires standard hand tools such as wrenches and screwdrivers, along with gas-rated thread sealant or tape for proper sealing of fittings.
A manometer may also be needed to verify proper gas pressure after installation, and leak detection solution is required to ensure all connections are safe and secure.
Because proper setup and testing are critical for safe operation, installation is recommended to be performed by a qualified technician.