Question about Dometic RM2652 Refrigerator

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The RM2652 refrigerator works fine on 120 volt power but when you shut off your generator or unplug it from the 120 volts it will not switch over to LP gas. The setting is on auto. Its 14 years old.

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Bad switch from shore power to generator replace make sure battery is ok 12 volt to run unit

Posted on May 30, 2016

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Posted on Jan 02, 2017

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SOURCE: Norcold Fridge will not work on LP gas while traveling.

One of two problems. The auto switch is bad or the lower circuit board is not doing its job. You can call norcold technical or take the board to a service center and have it checked with the tester they should have. The lower board retails for 176.00. I looked at my tech file and it is a little vague on your particular situation. If I were repairing your fridge I would take the smart route and call technical. Hope you get your problem solved. If you need more help please feel free.
Regards

Posted on Mar 24, 2009

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1 Answer

Only has 120 volts,can not get 240volts


the generator consists of 2 120volt windings that run in parallel for 120 volts and in series for 240, check the change over switch make sure a wire hasn't fallen off, if you have a multi meter check both coils have the same resistance

Jul 19, 2014 | Coleman Powermate Powermate 5000W...

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Rm70 will not do anything


check voltage coming in 120 volt for heater element 12 volt runs fridge if fuse ok and 12 volts bad board

May 22, 2014 | Dometic RM2652 Refrigerator

1 Answer

I have a briggs and stratton 8500/5500 generator which I am using to power an air conditioner on a camper trailer. I just recently started having a problem where the one circuit breaker keeps tripping when...


Hello, First figure out what the load per leg is on your generator. Are you using the 240 Volts because this is two 120 AC volts legs and they are 120 degrees out of phase with each other.

You will need to figure what the power factor is for each phase on this generator. To figure the power/wattage by using ohm's law. Voltage times Current will give you Watts. Example: If the generator is generator 240 volts the maximum current available is about 23 amps. The maximum current for 120 volts will 46 amps. Therefore, the maximum current per 120 volt circuit is 23 amps for one circuit and 23 amps for the second 120 circuit..

I would try replacing the circuit breaker with the same amperage breaker. Also, watch what the generator load is per circuit. You can install current meter for each circuit. This will give a good indication of which circuit is pulling more load than the other circuit. GB...stewbison

Sep 06, 2011 | Briggs & Stratton Power Products 5,550...

1 Answer

Will not run only on gas but will not cool


If it works on gas and NOT electricity then the heating element is not getting power or the heating element is open. The heating element is located on the tubing just aft of where the pilot flame is on the bottom of the copper tube. You should check for power to the heating element and with power off perfom a continuity check on the element. I really do not at this time think you have a heating element problem.

There is a 120VAV element a AND a 12VDC element. The chances of both of these failing at the same time is pretty slim.

There is a note in the manual:
If the gas only pushbutton is depressed the
lamp will illuminate green and the refrigerator
will only operate on the LP gas mode, even if q
120 or 12 volts are available.

Another significant change in the third
generation A.E.S. system is how the 12 volt
heating element mode operates. As with the
first and second generation series, the 12 volt
heating element circuit is energized by the
ignition lock terminal. This terminal receives
its DC voltage from a wire that runs from the
run side of the vehicle’s ignition switch to the
refrigerator’s ignition lock terminal. This
allows the 12 volt heating element to be
energized only when the RV is traveling down
the road.
When the ignition lock terminal is energized
by the ignition key, the printed circuit board
must see at least 13.3 volts DC for a period of
40 seconds before the system will activate the
12 volt DC heating element.
If 13.3 volts is not achieved in this time frame,
the electronics will light the LP gas burner and
the refrigerator will operate on the LP gas
mode.
LOWER THAN 13.3 V.D.C. =LP Operation

If the battery voltage remains low after the
delay cycle, the automatic controls will light
the refrigerator on the LP gas mode and stay
on the gas mode until the printed circuit board
sees approximately 13.3 volts DC to the
terminal block.

For proper cooling on the AC mode, the AC
voltage to the refrigerator should not vary
more than 10 percent from the voltage rating
on the heating element. Heating elements used
in Dometic refrigerators could have a rated
voltage of 110 volts, 115 volts or 120 volts AC.
Because of this, the power requirements for
each differently rated heating element will
vary. For example, if a heating element is
rated for 100 volts, the acceptable power range
would be between 99 to 121 volts AC. If an
element is rated for 115 volts, the acceptable
power range would be between 103.5 to 126.5
volts AC. If the heater is rated for 120 volts,
the acceptable AC power range would be
between 108 to 132 volts AC.

The unit to operate on either AC or DC must have 13.3 volts to the unit. I think this is where your problem lies in that the battery voltage is less than 13.3 VDC


If all of that checks good just repsond here and I will help you. There is still more that can be checked.

Thanks for choosing FixYa.

Kelly

Aug 24, 2010 | Dometic RM2652 Refrigerator

1 Answer

No 240V


check for a circuit breaker that is tripped, as well as a switch that enables 240volt (at the cost of 120 volt current being cut in half.). The switch puts the alternator windings in parallel (120volt full power) or series (240 volt @ half 120volt current).

May 02, 2010 | Northstar Generator 18 Hp, 10,000 Watt,...

1 Answer

My rm2552 fridge wont run off of 120 volt power but runs fine on propane any ideas?


I have a dometic rv refrigerator its gas/electric it worked 6 months ago. But can't get it to work now.

Sep 02, 2009 | Dometic RM2652 Refrigerator

2 Answers

RM2652 WORKS ON GAS NOT ON AC ALL FUSES OK POWER


www;
Unplug the fridge. Remove the cover from the circuit board, unplug the 2 wires going to the heat element and do an Ohms reading should be 35-45 Ohms. If the Ohms is good then you need a circuit board as long as you have checked the 110 volt fuse on the circuit board.
Thanks for using Fixya
Jerry

Mar 30, 2009 | Dometic RM2652 Refrigerator

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