If you are plugged in, check your battery voltage. If it reads only 1/2 full or less, you might have a tripped circuit breaker to the converter 120 volt power (check all your GFI's) and plug in the converter to a extension cord if required to get the battery voltage back up to the 'full' or green level.
If you have a full battery, then probably will need someone to look at the problem. If the stove works fine, there is not much else you can troubleshoot yourself.
Let us know if the stove will not work. As a last resort, you could run the oven, and leave a roof vent and window open about 1/2" each, and let that warm the RV. However do NOT go to sleep with the oven and stove burners on. They produce to much CO to heat the RV.
If the stove burners are really small, then the propane tank might be frozen? OR regulator - as suggested above. A light near the tank will help warm it a bit, but if it is windy out, much of that heat will leave very quickly.
Good luck!
Fred.
