modine hot dawg stopped running

[rob in nh]

noticed a smell of propane while i was outside and checked on the heater. it would fire when i turned up the thermostat so i shut the power and turned it back on to fire it up. it tried to fire 4 times then shut down. checked the gas to see if it was leaking and it wasn't. bottle was covered in drifted snow so i cleaned it to check for leaks. any ideas where i should start to look?

 

[Jlbc212]

Does your heater have diagnostic lights? They might give you some indication of the problem.

Make sure the vent isn't covered or filled with snow or ice.

 

[BD1]

Try rubbing some steel wool on the flame sensor rod. Did this to neighbors, it builds a light film on it.

 

[rob in nh]

feeling like a dumb ***, checked the tank and its empty. i guess i'm going to buy another tank.