mine has a red R and green G, not sure if red means empty, i have it hooked to my 300 lb pig at home, furnace runs fine but the indicator shows the red R, maybe not enough pressure to switch it?
i change the factory propane hose to a Camco 59035 12' Propane Supply Hose, i can connect to on board tank or my pig.
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The "Black Pearl"-2017 3731FL Legacy Package
2017 F-450 Platinum, 6.7 PSD
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