Originally Posted by Old car
Last trip out we saw the "check gas" light flashing on the fridge. Tried to light the hot water heater and that didn't fire up so I just assumed we were out of gas and ran on shore power for the weekend. Went to pull the propane tanks (2-30 pound tanks) and one was completely full and the other is about half. This is strictly judged by picking them up. Put it all back in, opened both tanks and switched the fridge from "auto" to "gas". About a minute later the check gas light starts flashing again. Went to light the water heater and it fired up this time after two cycles thru the auto ignitor.
Suggestions please. Dealer is quite a distance away and we are going out Labor Day weekend. I'll have shore power at the site but it will be about a 5 hour drive each way.
Assuming that your trailer is equipped with an auto-changeover LP gas regulator, you need to use the correct procedure when opening the valve(s). Start out with two known-full tanks. SLOWLY open the valve on one of the tanks, this becomes your "active" tank so turn the indicator knob to point at that tank. SLOWLY open the valve to the other tank. Your level indicator (not the pointer knob) should now show green. You can now purge the gas lines of air by lighting one or more of the stove top burners. The fridge should now operate normally on LP gas - assuming you are not connected to shore power. Keep an eye on the gas level indicator and as you use gas it will slowly change color from green to red or orange. When it changes fully to red or orange, it means that the auto-changeover valve has switched to the second tank. You can now manually turn the indicator knob (usually an arrow) to point at the second tank, close the valve to the first tank and get it refilled. After refilling and reconnectiing, SLOWLY open it's valve, and the cycle starts all over again, etc, etc.
Not exactly sure why, but sometimes the auto-changeover valves will not operate correctly if not initialized correctly and refuse to let gas flow from either tank.
Clear as mud - right ??