I have a Honeywell T8601 the unit itself is in the ceiling but over summer I shut off the natural gas at the meter and now it's winter it won't fire up . Has the pilot gone out

If its the type of fire with a constant pilot flame, the top and surrounds will get hot. Obviously, its wasting gas but on some fires, it can be a pain to relight the pilot, hence some People leave the pilot on during the winter season and shut it all down for summer.

the pressure of natural gas is higher than propane you need to use a manometer to readjust the pressure or, maybe the gas co. will do it for you

Not possible with that unit. Just buy a thermostat locking cover.

It's possible, Cal, but it could be that the burner and the pilot assembly simply need a thorough cleaning. As, insects love to build nest in the heating part, when they are not being used.

If after cleaning the unit thoroughly, you still have the problem, you can purchase the Thermocouple from the manufacturer, Blue Rhino 1.800.762.1142.

I hope I was able to help you and thanks for choosing FixYa.

line could be plugged try clearing , or you could have air in the line which would take ages to come out as pilot is very small , best to purge gas line of air then try and relight

This is probably a reversing switch changing the rotation direction. Check the air flow from the fan to find if it is pulling air up or pushing it down. Pushing down from the ceiling will be the 'winter' setting, pulling up, the summer. Since warm air gathers at the ceiling, it is beneficial to have it move that air downward during cold weather and have it pull up cooler air from the floor in summer. I frankly don't notice much difference though.

my mom had same problem its the crank sensor change it and the problem will go away

It could be 1 of 3 things. 1) Receiver unit, 2) Sender (Remote), 3) Motor. For my brand new ceiling fan it turned out it was the motor.

Hi check out the pressure switch jump this out seeif itn lights check flame senser blow heatout with air line hope this helps

I winter it blows up to catch the warm air from the ceiling and bring it down. In summer it blows down to cool you off by evaporation.