TRY TO HEAT SOMETHING AND MIRO STAY FOR 5 SEC ONLY

sound to me that control board is being reset by something , (xx's on display tells me this) before taking in for professional severviceman to look at it try one thing move oven to another part of house (farthest you can get it ) and try using it , I have seen one time that LOcation in home affects microwave operation

When it times down but doesnt heat it is typically a problem with the door switches, especially one you just bought, may have been from shipping . A switch or connection may have been disodged when being shipped to you. Most machines have something like 4-5 wswitches, If 1 doesnt report right it will stiop the unit from running. But since some of them are closed it will accept the programing and try to operate. So a lot of times you get fan running and tray turning but no power to the secondary circuits. You will need to find out who does warranty for them or return it where you bought it as a defective unit.

holder the timer bottton in for 5 sec

Check the fuse in the bottom of the oven ... near where the power cord enters.

unplug or disconnect power for about 5 min. then plug back up see if display clears.

EE1 on a Sharp commercial microwave is magnetron 1-related failure.

It may be a bad connection or relay on the control board, a bad magnetron, a bad high voltage diode, etc. - anything in the high voltage circuit for the #1 magnetron.

We have the service / repair manual for a similar model and have uploaded it to our site here to help you.

It will give you safety info, step by step help in disassembly and troubleshooting tips, but do not rely on the part numbers shown in that manual.

You can find part numbers and order parts from Encompass here or you can call them toll-free at 866-779-5835.

Most computers will open the manual automatically, but you may need the free Adobe Reader

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

Q - The microwave display counts down and the inside light is on,  but nothing is heating and the fan is not running.
A - This most commonly is a bad door switch, other possible problems are a faulty relay or solder joint on the power module, but a bad door switch is most common.
 Q - My microwave is running and sounds like it is working but will not heat up anything.
A - Many thing can do this but, common things are....loose high voltage wire.....poor solder joint on board.....magnetron.....power relay.....
Q - The microwave makes a loud "hum or buzz" noise but will not heat up the food?
A - 9 times out of 10 this is usually this is a bad magnetron, the other time is sometimes a bad high voltage diode. See components section.

Usually this indicates failure of the magnetron and/or the inverter. Neither is easy to test without specialised HV equipment. Often the cause is operating the oven without anything in it. If this has happened, it will generally be failure of the magnetron.

Replacement of the magnetron is relatively easy (about 15 minutes) and the inverter a little longer but if you do not have the knowledge/skills please do not do it - there are very dangerous (deadly) voltages associated with magnetrons even after they have been switched off.

Cost of magnetrons ranges upwards from USD25 to USD100 (from Panasonic spare parts) and inverters range upwards from USD125. The cost of parts is often the reason microwave ovens are not repaired.

Doug

I'm thinking that the circuit board has a problem. I doubt it will work but disconnect all the connectors on the board...with the power off and reconnect. It may clean off some goo. If not, use your method as long as it will work and then consider a new board.