Keystone cabana 2150 gets gas to stove and nothing else HELP

[Buffalo716ny]

I've replaced the regulator and pigtails today hoping that was the problem still only get lp to the stove w nice flame .
If i hold down water heater pilot button there's no hiss of gas same w heater which operate but blows COLD air i can see the sail switch which is,moving when fan is active so I assume switch is good also pulled heater n blew everything out still no luck also the lp detection unit is plugged in ..any help much appreciate thanks

[Buffalo716ny]

Ok thanks for the quick response I'm going crazy here the camper wasn't used for good while before i picked it up figured there would be some issues.. the elctrical is fine it's the lp/ gas thats giving me issues just thought it's wierd gas stove works n the heater is before that which ommits no gas smell or sound at all the water heater is on the opposite side I went underneath camper n can see gas lines which is black n tapped off to appliances with copper ..I wonder since not being used moisture/ ice got in the lines seeing it's 16 degrees n possibly froze ..

[1492]

Moved from Forum Technical Support

[Twomed]

Very low pressure system... takes a lot of tries to get air evacuated. Keep trying to start things, sometimes takes a dozen start cycles. Doing the farthest from tanks first is usually faster.