Hello there! I have ran across that problem. First i would check for battery voltage at the lp solenoid in the morning if not present, i would check the lp solenoid relay under the fuse box.If voltage is present i would remove lp solenoid from lp regulator (disconnect lp hose and crack line to remove pressure from system) i would check the spring and plunger for lp residue that would cause it to stick and not to open. If clean put spring and plunger back into solenoid, connect and hold away from fan (moving parts ect.) turn engine over and watch to see solenoid pulls spring and plunger in. if it doesnt replace lp solenoid. If solenoid works reinstall connect lp hose to tank. remove lp hose from lp regulator put finger over the port turn over engine and feel for lp fuel. no output means time for new or rebuilt lp regulator. hope this helps.