20 Most Recent Whirlpool RMC275PD Microwave Oven Questions & Answers

the 3 beeps are telling you that your fuses are blown

This indicates the door is not latching. The simplest fix is if it really isn't closed, and simply pressing on the door does the trick. Not so lucky? Latch mechanism itself may be dirty and not latching. Try cleaning it with standard spray kitchen cleaners and a good scrub, followed by a toweldry. Still no good? There's often an electronic interlock-- a place outside the latch, perhaps along the face of door, which must contact the body of the microwave oven. Again, try cleaning all possible contact areas. No? OK: microwaves are designed not to run without a tight seal to prevent emissions. perhaps the seal itself is damaged. Finally, and most unhappily, and expensively, the electronics module in the combo unit is shot. If the appliance is under warranty you're in like flynn; if it's relatively new but not under warranty, call the Whirlpool service 800 number and very politely but firmly remind them that this is really quite a new unit and certainly their products aren't meant to fail so soon... and surely they have a service bulletin because this can't have just happened to you... This will usually result in (oh happy day!) a free service call or (more common) a deal to sell the part at half price. Better than nothing!

there two power supply one for the Magnetron and other low voltage for display drivers and relay. also it will have 2 fuses one of 10 Amps other for some 500MA replace the second one .

Press and hold the DELAY START TIME button for +5 secs and a chime will sound. The option to toggle between SND HI and SND LO will come up, pressing Delay Start Time will change it between these options.

see the diagram attached and fix it. God bless you

1. Main control boardIf your microwave runs for a few seconds and stops, the first thing to check is the main control board to ensure that a shortage has not occurred. If the part is defective then it will need to be replaced to prevent continual shut offs. If this is not the issue, the next step would be to check for a faulty touchpad.
2. Touchpad/Control panelIf the control board is not the issue and your microwave continues to shut off after running for only a few seconds, the next thing to check is your touchpad, which is also known as a control panel. Although uncommon for this issue, symptoms are usually that the display and some buttons are working properly; however, when selected some buttons are not functioning. If this is the case the touchpad will need to be replaced.

you have a short some where