That %$#@*&^ Norcold 1200LRIM Ref

[Frank Bailey]

Help! After having done the "recall" and then replacing the cooling unit, the refer is now blowing the 12 volt DC ,5Amp fuse located on the circuit board. It has blown twice,about 7 days apart. Everything else seems to be working OK. Any comments and/or suggestions would be greatly appreciated.

Thanks in advance.

Frank Bailey
'02 Endeavor

[RV Wizard]

Frank, welcome to iRV2.com. We are glad to have you join us here and we look forward to reading of your adventures and experiences. I am sure you will enjoy the website and forums.
How long ago was the cooling unit replaced? Did you do the work or a service company? Have you checked to be sure all connections are tight? Have you noticed as to the scenario when the fuse blows, ie; opening door, lp gas mode operation or traveling? A little more info could sure help when I can't put my hands on it. Thank you.

[Frank Bailey]

RV Wizard, The recall was done in mid July, the cooling unit was replaced in end of Aug. Both were performed by a Norcold authorized dealer/service center. The MH was last driven in mid Sept. The first fuse blew on 10/4 during night. I noticed fridge not working (no light) in AM when I got milk out for breakfast. The temp was 42degrees; normal is 38. The 2nd fuse blew on 10/20. Same senario - noticed fridge off in AM when I first opened door. Temp about 41. No known power surges - MH has a Surgeguard installed. Weather conditions were mild. The fridge was operating on electric continuously from the time the cooling unit was replaced. Nothing unusual occurred that I know of between going to bed and opening fridge in AM.
Any other info I can give? I appreciate your efforts on this.
Frank

[RV Wizard]

Well, we have a 12 volt short happening somewhere and it will probably only be found when replacement of fuse keeps blowing where troubleshooting can be done. If and when it blows a fuse when replaced, are you able to check power and resistance through the circuitry?

[Frank Bailey]

RV Wizard, Don't know if that is possible; depends on weather and my health situation at the time. I have cataract surgery coming up soon, also am having severe back/hip problems (aka siatica), so it depends on what inconvenient time the fuse blows again. Getting to the black box to remove the cover to test power readings and resistance is a major undertaking. I cut out a hole in the cover over the fuse to make it easier to replace when necessary. I covered the hole with gorilla tape to keep out water. I can now replace the fuse without removing all the wires,water lines, ice maker water solinoid,gas lines, etc just to get to the cover. Will just have to wait and see what and when it happens.
Thanks,
Frank
'02 Endeavor

["007"]

Frank, if you remove cover and get behind circuit board with a air canister, for cleaning key boards on computer, may have something behind board causing shot, than use some contact spray to clean surface and wire connections on board may remove slit corrosion on board.
You can get both at Radio Shack.