Totally Confused

Question

I was checking my fuses today &amp; noticed that the refrigerator has a 20 amp fuse in the 12 volt feed. I have a Norcold 2 way fridge so it doesn't have a 12 volt heater, the 12 volts only runs the circuit controls. The sticker that shows all the fuse sizes in the fuse box also lists the frig as having a 20 amp fuse. I checked the sticker on the frig &amp; it shows the 12 volt amp draw as 1.2 amps. The installation manual says the maximum fuse size should be 6 amps.So why do I have a 20 amp fuse????Big Rig (John)

choochooman74 · Answer

I would say, cost cutting.  Manufacturer probably buys fuses in bulk, and they just buy 20s.

hedge · Answer

delete

grit_dog · Answer

Prolly because most every AF camper has a 3 way fridge as they typically have a lot of amenities. Since you ordered yours, or bought one with a 2 way it was likely out of the norm when it was produced.
Won't hurt anything I'd guess as the wiring is probably the standard gauge to power the DC heater, but the most correct and conservative thing to do since you noticed it is replace with a 5amp fuse.

old-biscuit · Answer

Fridge DC Circuit FUSE on circuit board will only be 3A........so 20A supply fuse is a NON-ISSUECould be 20A also used for 'other' components (feeder for water pump, possibly water heater)???

rickeoni · Answer

Battrey charger on the convertor is usually on the fridge circuit.

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Totally Confused

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