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Topic: 12 volt air compressor fuse size (Read 3443 times) previous topic - next topic

Re: 12 volt air compressor fuse size

Reply #25
That sure looks like the re-setable breakers to me. Look for one with the little black plastic piece sticking out farther than the rest.
Wonder why yours doesn't have labels.
Richard & Betty Bark & Keiko our Golden Doodle
2003 U320T 3820 PBDS
Build # 6215
MC # 16926
2016 Chevrolet Colorado 4X4 diesel

Re: 12 volt air compressor fuse size

Reply #26
Wonder why yours doesn't have labels.

Year model, day of the week, or bad hair day

From the pic. it looks like the net to the bottom one on the inside may be tripped.  The electric print should tell for sure which one is for the HWH.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: 12 volt air compressor fuse size

Reply #27
That sure looks like the re-setable breakers to me.
Me too.

1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: 12 volt air compressor fuse size

Reply #28
WELL...Back to the drawing board.
Went to each individual "little black" button and pushed them in.
None of them were protruding further than the other.
Still nothing...
Peter    Alberta Canada
'98 U320 40'  Build 5359 M11 450 HP, Aqua hot, Blu Ox

Re: 12 volt air compressor fuse size

Reply #29
The HWH compressor is 15 amps.  Second from the top on the left. Find your drawing same number as this and confirm.
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN

Re: 12 volt air compressor fuse size

Reply #30
yes I tried resetting all of them. None of them seemed to be protruding so I just reset them all.
Same issue...bewildering..
Peter    Alberta Canada
'98 U320 40'  Build 5359 M11 450 HP, Aqua hot, Blu Ox

Re: 12 volt air compressor fuse size

Reply #31
Oh and I do not have that schematic. 
Peter    Alberta Canada
'98 U320 40'  Build 5359 M11 450 HP, Aqua hot, Blu Ox


Re: 12 volt air compressor fuse size

Reply #33
thanks...two totally different schematics.  Will try that one mike and hopefully that will work. Just a gentle push is all it takes on the breakers right?
Peter    Alberta Canada
'98 U320 40'  Build 5359 M11 450 HP, Aqua hot, Blu Ox

Re: 12 volt air compressor fuse size

Reply #34
Can you jumper 12v directly to the air compressor to see if it starts ?

Tim Fiedler
Gen-Pro.biz
630 240-9139
Tim Fiedler    2025 LTV Unity MBL on Order
2000 Chevy Tracker 2 Door Convertible 4WD Now lifted 4.5"
1985 Citroen 2CV6 Charleston
Murphy Rebel on wheels with 175HP Titan
Cessna P337
1980 48' Westport MY (!/4 Share)

Re: 12 volt air compressor fuse size

Reply #35
I think that is my next step
Peter    Alberta Canada
'98 U320 40'  Build 5359 M11 450 HP, Aqua hot, Blu Ox


Re: 12 volt air compressor fuse size

Reply #37
Not sure how to do that. Can you explain please?
Peter
Peter    Alberta Canada
'98 U320 40'  Build 5359 M11 450 HP, Aqua hot, Blu Ox

Re: 12 volt air compressor fuse size

Reply #38
Should be two wires leading into the actual pump ( on mine red and black) if no disconnects, cut wires and begin by adding crimp on disconnects so the pump is easily removed in future if needed, while you have bare ended wires, take jumper cables from a car battery and put the red to the positive jumper and black to negative jumper ( I use short jumper wires with alligator clips on each end). If pump starts, your issue is wiring related. If it doesn't start it likely is a bad motor or frozen piston in the pump.

Tim Fiedler
Gen-Pro.biz
630 240-9139
Tim Fiedler    2025 LTV Unity MBL on Order
2000 Chevy Tracker 2 Door Convertible 4WD Now lifted 4.5"
1985 Citroen 2CV6 Charleston
Murphy Rebel on wheels with 175HP Titan
Cessna P337
1980 48' Westport MY (!/4 Share)

Re: 12 volt air compressor fuse size

Reply #39
Travelin man
Can you explain how to check if the pressure switch is working?
Peter    Alberta Canada
'98 U320 40'  Build 5359 M11 450 HP, Aqua hot, Blu Ox

Re: 12 volt air compressor fuse size

Reply #40
Take the cover off and see if the contact points are open or closed.  If they're open then close them and see if the compressor starts.  If they're already closed then you have a different problem such as wiring, fuse, switch, etc.

Use something like a small screwdriver to push the contacts together (one is fixed and one moves) and also to open them afterwards.

There is some useful information here;

9 Common Well Pump Pressure Switch Problems

Re: 12 volt air compressor fuse size

Reply #41
Man oh man this confuses me. My compressor is mounted on the same rack as my inverts attached to the roof of my bay. What component do I have to take apart to look at the contacts?  I am going to guess this is going to be a major project as I will have Carefully remove the compressor( in very tight space) to get to that.
Peter    Alberta Canada
'98 U320 40'  Build 5359 M11 450 HP, Aqua hot, Blu Ox

Re: 12 volt air compressor fuse size

Reply #42
Peter, mine is a squarish box with a grayish cover. Loosen the nut and pull the cover off. You will see the contacts, mine would stick. I left the compressor on the shelf in my coach and moved all the rest of the parts to the side wall of the bay so they were more accessible.
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN

Re: 12 volt air compressor fuse size

Reply #43
I am going to start with changing the pressure switch(3) in the HWH. First of besides the Stewart Warner brand is there another I can but on Amazon that is just as good and perhaps cheaper....and will ship to a Canadian address?
The other, perhaps more important question is.... is there anything I have to do special besides unscrewing the pressure switch and re attaching the two  wires? Do I have to dump the air, turn off the salesman switch, etc before doing this replacement?
Like I mentioned I am going to start thee as the HWH service  manuals kinda says things revolve around the pressure switches. If that Does not do the trick I. Getting my compressor working I may try the pressure switch on the actual compressor.  The other factoring thing is there is very little room to work on the compressor as it is located on the same rack as the inverter on the bay ceiling
Peter    Alberta Canada
'98 U320 40'  Build 5359 M11 450 HP, Aqua hot, Blu Ox