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When the thermostat calls for heat, electrical current opens the internal valve. This allows fuel to reach the burner assembly so combustion can warm your home.
Specifications
- Part number: 36C03-433
- Brand: White-Rodgers
- Part type: Gas valve assembly
- Amps: 0.23A
- Frequency: 60Hz
- Gas type: LP, Natural Gas
- Ignition: Standing Pilot
- Voltage: 24 Vac 60Hz
- Gas type: natural gas or propane, as listed
- Ignition: same type as your furnace
- Pipe size and BTU: same pipe size, rated for your furnace
From the maker's and parts sellers' listings for this number. Compare them with the label on your old part.
What the Gas Valve Assembly Does
A gas valve acts as the primary gatekeeper for fuel inside your heating system. It stays closed when there is no call for heat, preventing unburned gas from escaping.
Once the pilot flame is established and the controls verify conditions are correct, the valve opens to send fuel to the main burners. It closes immediately once the heating cycle ends or if a safety control interrupts the circuit.
Understanding the 36C03-433 Specifications
Every gas valve is built to handle specific electrical inputs and fuel types. Always compare your old unit label directly against these values.
- Voltage: 24 Vac 60Hz
- Amps: 0.23A
- Frequency: 60Hz
- Gas type: LP, Natural Gas
- Ignition: Standing Pilot
How to Confirm a Replacement Matches
Matching a replacement requires checking both physical and electrical characteristics against the existing equipment.
Use these general match points to verify fit before proceeding with any repair:
- Gas type: natural gas or propane, as listed on the rating plate
- Ignition: same type as your furnace, which must support a Standing Pilot system
- Pipe size and BTU: same pipe size, rated for your furnace
- Check the replaces list: find the part number on your old valve to confirm compatibility
Signs of Valve Failure and Safe Replacement Steps
When a gas valve fails, the burners may refuse to light even when the pilot stays burning and the thermostat calls for heat. In other cases, an internal coil failure prevents the main port from opening.
Take a photo of every wire before removing a part. Move wires one at a time to the same spots on the new part. Because the installation requires breaking gas pipe connections and verifying line pressure, have a professional handle the physical swap.
Read your old part
- Turn off electrical power to the furnace at the circuit breaker.
- Remove the access panel to locate the installed gas valve assembly.
- Wipe dust from the metal specification label on the valve body.
- Locate the printed model or part number on the label.
- Confirm the label clearly reads 36C03-433.
When to call a pro
Call a licensed pro: Gas valve work means opening gas lines and setting gas pressure. We strongly suggest a licensed tech does the install. Hire a licensed HVAC technician for any step you are not sure you can do safely.
Questions
What ignition type does the 36C03-433 use?
This valve is designed for a Standing Pilot ignition system. It is not compatible with direct spark or hot surface ignition setups.
What fuel types can this valve handle?
The specifications list LP, Natural Gas for this part. The system setup and rating plate must match the specific fuel delivered to the home.
What electrical power does this gas valve require?
It operates on a control circuit rated at 24 Vac 60Hz. It has an electrical draw rated at 0.23A and runs at a frequency of 60Hz.
What should I do if I smell gas near the furnace?
If you smell gas, do not touch any switch or phone inside the house. Leave the home immediately and call your gas company from outside.
Related part numbers
- 36C03-400Gas Valve, White-RodgersSame brand and type
- 36H64-463Gas Valve Assembly, CopelandSame part type
- 0151F00000PSGas Valve, GoodmanSame part type
- 00-420560-00001Gas Valve, Vulcan HartSame part type
- 1172822Gas Valve Assembly, ArcoaireSame part type
- EF34CW246Gas Valve Reference, CarrierSame part type
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Brand names and part numbers identify the part and show fit. HVAC Fitter is not affiliated with, authorized by, or endorsed by any equipment maker. If you are not sure a repair is safe for you, call a licensed HVAC technician.