The number one reason why the pilot light keeps going out is the thermocouple.
Wall mountes gas heater pilot light keeps going out.
Keep every intake air register in your home open and clear to avoid a vacuum effect in the inlet.
A leak in the output duct of the furnace could cause air to blow into the area.
Thermocouples work by producing a small amount of voltage when it is heated.
Another cause of a weak pilot is a faulty.
Either the thermocouple is going bad or it is dirty and needs to be cleaned.
If your pilot light re lights easily after going out overnight it s possible it was blown out by a draft.
This can happen on excessively windy days or nights.
The initial flame of the pilot heats the thermocouple which will signal the valve to stay open and keep the pilot lit and the propane heater functioning.
If this pilot light ever goes out the heater has no way of actually.
This would cause a low pressure and so the pilot light may not get a steady flow.
You can fix this easily by moving the thermocouple closer to the flame.
Your line could have a kink in it causing the same effect as 1.
Gas heaters whether they warm up air or water in a home rely on a pilot light to trigger the flame of the actual heater.
If the thermocouple is too far from the flame this can cause the pilot to go out and shut down the propane heater.
This is the pilot flame that provides the heat.