Question about Sharp R-1850A Convection/Microwave Oven

1 Answer

Hit with 220V and now nothing.

I have a NEW never used R-1850A Unit and the 1st day I plugged in the new RV in to a mis-wired 220V plug and a pop came out of the microwave and that was the last we ever herd from the unit. I removed the cover and checked the 20A Fuse, it was OK. I find no burned parts and have reached my Peter Principle and need help. The RV Company sent me a new unit and this unit has been in storage for 8 years. We just decided to take it out of the box and try and use it in the house if we can get it repaired for less than a new unit.

Chuck

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  • cat mouser May 11, 2010

    Do you happen to have the manual with the R-1850A? I can't solve your problem but I have looked everywhere for a manual and can't find one.

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  • 178 Answers

I think the control boards are still available for this unit. No doubt the '220' blew the front end of the power supply.

Posted on Sep 13, 2009

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1 Answer

Plugged 220v


if your microwaved runs with 110v and you connected to a 220v there is a fuse maybe it blew and nathing happened to the micro... if not most common the electronic board burns you know what that means... a new one

Feb 02, 2014 | Microwave Ovens

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Microwave Fried


Unless a expensive unit I would replace it as the main power supply for the unit a who knows what else got toasted---

Aug 27, 2012 | Microwave Ovens

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Loud popping noise after being plugged into 50 amp power source possible power surge unit in rv unit light still works but no power to make unit work.


What happens a lot in these RV microwaves is that a surge will damage the circuit board and sometimes also blow the low voltage transformer.

These are problems we can usually take care of for $39.95 and $54.95 respectively.

You can get more information here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

May 25, 2011 | Sharp R-1850A Convection/Microwave Oven

1 Answer

Here in Australia we have different power sockets and power supply As I understand the machine I have has 120V 60HZ 1025 W What do I need to use it here in Australia? Do I need a new plug or a...


good day.

first,the power socket,,try to see the power plug of your machine and the power socket you have..compare it..when its compatible no need to replace,,if not you need a socket adapter.or if not available buy a new plug (if your plug is not compatible to the socket)

secondly,you don't need a transformer if your ac supply in Australia is 120v..
if the supply in your place bigger than 120v...like 220v,230 or 250v..you have to use a step-down transformer with input of what you have in Australia and the output is 120v..and of course pay attention for the wattage of transformer to avoid over heat or burn..I suggest to buy 1500w...

thank you and good luck

Apr 07, 2011 | Microwave Ovens

1 Answer

I have the same problem with Panasonic NN-8501V Microwave Oven


I took the touch pad control unit apart, clean the connector for the ribbon wire connection between the key pad and the control unit, reseated the ribbon wire in the connection. Everything worked like new.

Oct 16, 2009 | Panasonic Microwave Ovens

2 Answers

Microwave wont work on generator power!


PLEASE CHECK THE POWER CONSUMPTION ON THE APPLIANCE i think it might be a lot more than ur gen set can supply

Jul 08, 2009 | Whirlpool 1.6 Cu. Ft. Over-the-Range...

1 Answer

Sensor error


I had the same exact thing happen...I put in some popcorn, it wouldn't pop. The screen said "sensor error". I tried heating water, a piece of chicken...nothing would heat. I unplugged it, plugged it back in...nothing. The manual says to close the door and hit the clear/cancel button. I could have sworn I had done that, but my wife simply hit the clear button and it started working again good as new. Hope yours does the same. : ))

Jun 11, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Sharp R-1850A Mocrowave Convection - No power


Chances are if the internal fuse and magnetron thermostat are good, then you have a circuit board that needs repair.

You can probably find exploded views at the Sears parts site. If you find a bad thermostat, the best place to order Sharp parts is Tritronics.

We regularly repair these control panels for customers nationwide (RV owners & dealers, too) with our guaranteed $39.95 service.

Feel free to contact me directly for more information & help.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

Aug 18, 2008 | Sharp R-1850A Convection/Microwave Oven

4 Answers

NO POWER, POPPED CIRCUIT


Two possible causes.

First (and most likely) the circuit is being overloaded. This kitchen circuit may be shared with another appliance (like the refrigerator) which is drawing enough power when both are running to trip the breaker. A Typical kitchen circuit is 20 amp with #12 wiring. So an 1800 watt microwave might draw 13 or 14 amps while a fridge compressor kicking in can surpass 7 amps before it levels off. If this is an older home the kitchen may have a 15 amp circuit with #14 wiring. If the circuit is a 20 amp you will have to split the appliances onto separate circuits. (Under code a kitchen must have a minimum of 2 separate appliance circuits). If it is a 15 amp you might be able to split them as well or may be looking up upgrading the breaker and the wiring from 15amp #14 to 20 amp #12 (but you could still have the same problem).

The other possibility is a short or loose connection. If splitting appliances onto their own circuits doesn't fix this you would probably want an electrician to come in and check for other underlying causes which could represent a fire hazard.

Hope this helps.

Apr 01, 2008 | Whirlpool GH6177XP Microwave Oven

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