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Commercial Chef Appliances
Commercial Chef Appliances

Commercial Chef Appliance Troubleshooting

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Microwave Troubleshooting

Commercial Chef Microwave not heating 
The diode converts the A/C power output of the transformer to D/C, doubling the voltage to nearly 5,000 volts. This high voltage powers the magnetron to heat the food. If the diode burns out, the magnetron won’t receive enough voltage to operate, preventing the microwave from heating. When the diode fails, it is often visibly burned out. Inspect the diode and if the diode is burned out, replace it. If inspecting the diode proves inconclusive, test it with a multimeter that uses a 9-volt battery or put a 9-volt battery in series with the diode. When the leads are reversed, the diode should only have continuity in one direction. (Warning: The microwave oven can store a lethal amount of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. Due to the high running voltage and the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. Only a licensed technician should replace the diode.) 

Commercial Chef Microwave light bulb not working 
The light bulb itself might be burned out. Replace the light bulb before replacing any of the parts associated with the light bulb. Before replacing the control, check the light bulbs, sockets, and wiring. If these parts seem to be working properly, test the control board with a multimeter to determine if it sending the correct voltage to the light bulb socket. If the control board is not sending enough voltage to the light bulb socket, replace the control board. Before replacing the light socket, replace the light bulb. If you replace the light bulb, and the light still doesn’t work, use a multimeter to test the light socket for continuity. If the light socket does not have continuity, replace it. If the microwave runs for a few seconds and stops the touchpad might be at fault. This is not common. Generally speaking, if the microwave display is working and some of the buttons respond correctly but some don’t, the problem is with the touchpad. 

Commercial Chef Microwave shuts off after a few seconds 
A door switch might be failing intermittently. Check each of the door switches for signs of overheating, arcing, or burning. If you don’t see any obvious signs of failure, use a multimeter to test each switch for continuity. If any of the switches is visibly damaged or only has intermittent continuity, replace it. Control boards are often misdiagnosed—before replacing the control board, first check more commonly defective parts, particularly the door switches. If all of the other components are working properly, replace the control board. 

Commercial Chef Microwave turntable not turning 
Use a multimeter to test the motor for continuity. If the turntable motor does not have continuity, replace it. 
If the microwave turntable is not turning the glass tray drive coupling could be broken or stripped out. Gently pull the coupling off the drive motor shaft to inspect the drive coupling for damage. 
If the microwave turntable is not turning the glass tray support could be broken or stripped out. Gently pull the support off the drive motor shaft to inspect the tray support for damage. 

Commercial Chef Microwave buttons not working 
To determine if the touchpad is defective, try pressing each of the buttons on the control panel. If some of the buttons respond correctly while others don’t, replace the touchpad. 
To determine if the touchpad and control panel are defective, try pressing each of the buttons on the control panel. If some of the buttons respond correctly while others don’t, replace the touchpad and control panel. 
To determine if the control and display board is defective, try pressing each of the buttons on the control panel. If none of the buttons are responding correctly, replace the user control and display board. 



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Product Reviews:

My previous microwave was purchased in 1998 so this one had different featu
My previous microwave was purchased in 1998 so this one had different features. I really like it and it fits into my decor very nicely. The only thing it's missing is a 30 second button. i loved that feature on my old one... but this one is better looking and works fine. Also has a timer that can be set while cooking on the stove, which is a nice feature.
Published: July 10, 2018
Kindle Customer
Source: amazon.com

I purchased this microwave when mine went out and it came in very quickly.
I purchased this microwave when mine went out and it came in very quickly. It is very pretty and matches my kitchen very nicely. I have three kids who believe in microwaving everything. So it gets used all the time. I love that the popcorn button on it is absolutely perfect. Every microwave I have ever had the popcorn button either doesn't cook it long enough or burns it. For me that is a huge plus. It is very light weight and works very well. I love this product and it was a great price, especially for a single mother of three. I would definitely recommend this microwave to anyone looking for great quality and price.
Published: April 14, 2017
Jen025
Source: amazon.com

This 600 watt micro wave works real good and is very simple to use. Now, fo
This 600 watt micro wave works real good and is very simple to use. Now, for those of you operating off solar power or an inverter ( semi-truck sleeper), mine uses 1070 watts of power no matter if it is set to low, or high power. My solar generator will handle it as long as I just heat stuff up and do not try cooking. Watt usage is always good to know 600 watts = 1070 watts. Good micro wave.
Published: October 5, 2016
GJW; Florida
Source: amazon.com

I just wanted to chip in a 5-star review after seeing the top reviews talki
I just wanted to chip in a 5-star review after seeing the top reviews talking about how their microwaves kept breaking--and I'm really sorry they had that experience, because this microwave is a real workhorse. I've currently had mine for going on five years now and had absolutely no problems whatsoever. The only reason I'm thinking of buying a new one is that the interior paint is starting to scuff off on the "ceiling" and the interior of the door--likely because when I clean, I scrub hard. I use my microwave multiple times a day and daily, so it gets hard use. I've had super-expensive microwaves that didn't hold up over a year.
Published: November 28, 2020
Anonymous
Source: amazon.com

I run this on a GoalZero Lithium 1400 solar battery. It consumes about 900
I run this on a GoalZero Lithium 1400 solar battery. It consumes about 900 watts when running (not the advertised 600). It consumes the same amount of power despite the mode (hi, med, low). I used this in a solar-powered van conversion and it really helps with my traveling. From the ability to heat up leftovers to quickly making frozen burritos to softening potatoes, I use this thing more than my propane stove. What I like about it is that I don't have to fill up my propane when using it. I just use it for a couple minutes a day, and my solar panels restore the battery for tomorrow. Even if it runs for 10-15 minutes in a day it barely puts a dent in my solar capacity.
Published: June 8, 2018
Oliver Rickard
Source: amazon.com

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