I have an AquaMax 205 water heater. Recently the pilot started going out, so I replaced the thermocouple and cleaned the burner.
After replacing the thermocouple, the pilot would go out sometime through the night. I would like the pilot in the morning and people would use hot water during the day and cause the burner to turn on and turn off and the pilot never goes out. However, when I wake up in the morning, the pilot is always out.
Nighttime temperatures are around 11 to 16 Celsius over the last few weeks.
What could be causing this?