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Robert
Robert, RV Mechanic
Category: RV
Satisfied Customers: 12178
Experience:  18 yrs. RV experience including Cummins North West, Country Coach, Monaco Coach - vendor certified.
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Fridge not working, fridge is DM2852RBFX Keystone

Customer Question

fridge not working,
JA: What's the make/model/year of your RV?
Customer: fridge is DM2852RBFX Keystone outbacksuper light
JA: Just to clarify, what are the exact lights you're talking about?
Customer: the TT is a Keystone Outback Super Light model
JA: What year is your Outback?
Customer: 2015
JA: Are you fixing your Outback yourself? What have you tried so far?
Customer: checked the 12 volt & 120volt supplies - both good then replaced the control board
JA: Anything else you want the mechanic to know before I connect you?
Customer: not much more than that
Submitted: 3 months ago.
Category: RV
Expert:  Robert replied 3 months ago.

Hi my name is Robert...

SO is the fridge not turning on at all AND you have 12 volts at the back of the fridge??

Robert

Customer: replied 3 months ago.
that is correct
Expert:  Robert replied 3 months ago.

OK

This fridge has a high limit and it is connected to the flue canister, you will see some smaller wires that are smaller then the AC heating element wires, follow the the wires and look for a disc about the size of a quarter, in the center is a tiny button that pops out when it trips, that cuts the power to the fridge. On some later DM models they uses a dioide and you would see that between the flue and circuit board. Let me know if you need more help on this.....

Robert

Customer: replied 3 months ago.
I am going to look right now...... be back in 5 minutes.
Expert:  Robert replied 3 months ago.

10-4

Customer: replied 3 months ago.
The button was not popped out.
Expert:  Robert replied 3 months ago.

OK

You need to check for voltage through that or check continuity, if needed you can bypass it for testing only... Robert

Customer: replied 3 months ago.
what voltage should I see?
Expert:  Robert replied 3 months ago.

I believe you should have 12 volts as that loops back around to the board, IF that has voltage then I suspect the upper display panel is at fault, kind of surprised it was not tripped, it does not take much when they pop out it might move 1/8" when you reset it...

RObert

Customer: replied 3 months ago.
no voltage on either side
Expert:  Robert replied 3 months ago.

OK

Follow that wire back to the board make sure it is not loose etc, and re-check the voltage at the fuse for the DC power, do not touch the AC fuse matter of fact unplug the cord.... I am going to pull a print up and have a better look... Robert

Expert:  Robert replied 3 months ago.

DO you have voltage on J-4?

Expert:  Robert replied 3 months ago.

click HERE and see the last page..... Robert

Customer: replied 3 months ago.
No I do not have voltage on J4, looking at last page now
Expert:  Robert replied 3 months ago.

You can see from the terminal block voltage goes through the main DC supply to J-4, you can also see the ground, make sure the wires in the terminal block are tight and not corroded. Check your ground as well, need to follow the path of the power and see where it is missing, hope this is helpful,,, Robert

Customer: replied 3 months ago.
what is the switch in the fridge was impacted during travel thus does not work?
Expert:  Robert replied 3 months ago.

I am not sure I understand what you are asking....

Expert:  Robert replied 3 months ago.

IF you have no power on J-4 the fridge is not going to work, that is the main supply that powers the fridge, you should be able to trace the wire from the terminal block (L) to the board. Robert

Expert:  Robert replied 3 months ago.

Hi,,,, Was just checking in to see if my answer helped???

Robert