Vulcan Oil Heater not operating correctly

https://www.partsfps.com/blog-how-to-remove-vulcan-oil-heater

You need to know the tank's capacity to figure out how much oil is still in your Vulcan oil heater. The tank's capacity is typically shown on the manufacturer's label, or it can be discovered by getting in touch with the manufacturer or a qualified expert.
Using the measuring stick, you may make an educated guess as to how much oil is still in the tank once you are aware of its capacity. You can calculate that the tank is around one sixteenth full if the stick indicates that it is one eighth full and the tank is halfway between the bottom of the stick and the one quarter mark.
To prevent sudden oil runs out, it's crucial to periodically monitor the oil level in your tank. To make sure that you always have a sufficient supply of oil for your heating needs, you might also want to think about setting up automated oil delivery or scheduling regular oil deliveries.

Do you know the model heater?
Can you post photo of the filter?
I have some filters for Vulcan oil heaters

Sounds like you may have the wrong size tip on your oil burner. A yellow flame indicates too much fuel not enough oxygen.

Are you able to post a picture/photo of the heater. I may be able to give lighting instruction.
where are you, I'm in Adelaide SA

Hi ddsalm,
Did you ever recieve an answer to this?

Have a gasfitter bypass the clock. The clock is the source of the problem. You will then have a manually operated heater.

Regarding the wiring on my ancient Vulcan oil heater...I have only just received a wiring diagram (dated January 1969), which I am just about to get stuck in to. I hope that I can follow it (the drawing looks like the last copy of something that's been copied 1,000 times before on one of those old Roneo, wet ink, wind-it-by-hand copiers). The drawing came from a Vulcan agent on the very far side of Adelaide. Here's hoping. Ooroo, John. .

¿ Oil heaters do not generate wattage. On the name plate for the unit it may give you an AMP draw. Multiply Amps times Volts to get wattage use when in operation.

1. Check electricity is on.
2. Check oil is in the tank and valve turned on.
3. Switch the fan off at the bottom left hand corner.
4. Switch oil knob to No.1.
5. Set Air knob to No.3.
6. Operate re set button (right hand corner of heater under settings dial). Either press in until it clicks or if the pull out version pull out until it clicks.

Wait - ignition should take place in a few minutes and flames will appear on the left of the burner under the radiants.

You should get occasional yellow crests above the pure blue flame just visible below the top row of burner holes under the radiants.

After the red warning light goes out you can adjust to higher settings.

The radiants do not glow on low setting.

You can adjust the heater on to higher settings but this should be done gradually - no more than 2 settings at a time.

Some warnings:

* The unit must be correctly earthed.
* Do not use anything except heater oil.
* Never attempt to re-light the heater when it is hot.
* If the red light does not appear when the oil knob is switched on, immediately turn the oil knob off. Reasons include: Heater is too hot; Electric plug turned off; failure of ignition system.

Good luck - no responsibility taken for the advice (but it is largely copied from my Vulcan heaters instruction manual which I still have (installed in 1967).