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Identify Problem
03
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Microwave not heating
Brand:Hotpoint
Model:RVM1535DM2WW
Product:Microwave
Featured Video
Microwave Not Heating? Microwave Oven Troubleshooting
04:04
Common solutions for: Microwave not heating
01 - Diode
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.)
Genuine Part
Fits your Hotpoint Microwave
$57.06Save $296.08 by Fixing it Yourself
3:37
Step-by-Step Diode Replacement
Technician Verified
Difficulty:
Moderate
Avg. Repair Time:Under 1 hour
Top Solution
02 - Door Switch
Most microwaves have three or four door switches. When the microwave door closes, the door switches actuate in sequence to ensure that the door is closed properly. If any of the door switches fails, the microwave will not start or heat. To determine if any of the door switches are defective, use a multimeter to test each of the switches for continuity. If any of the door switches does not have continuity, replace it. (Caution: The microwave oven can store thousands of volts of electricity in its... high voltage capacitor, even after the microwave oven has been unplugged. Due to the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. Only a licensed technician should replace a door switch.)
Genuine Part
Fits your Hotpoint Microwave
$39.40Save $298.04 by Fixing it Yourself
2:49
Step-by-Step Door Switch Replacement
Technician Verified
Difficulty:
Easy
Avg. Repair Time:Under 1 hour
Genuine Part
Fits your Hotpoint Microwave
$38.80Save $294.75 by Fixing it Yourself
2:49
Step-by-Step Door Switch Replacement
Technician Verified
Difficulty:
Easy
Avg. Repair Time:Under 1 hour
Top Solution
03 - Magnetron
The magnetron uses high voltage, high current DC power to generate the microwave frequency that cooks the food. If the magnetron burns out, the microwave won’t heat. The magnetron is not repairable—if the magnetron is burned out, you must replace it. (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 magnetron.)
Genuine Part
Highly Likely
04 - Thermostat
If the microwave overheats, the thermostat trips to cut off voltage to the microwave. If the thermostat is shorted open, it may not allow voltage to reach the high voltage components. To determine if the thermostat is at fault, use a multimeter to test it for electrical continuity. If the thermostat does not have continuity, and it cannot be reset, replace it.
Highly Likely
05 - High Voltage Transformer
Microwave ovens produce a very high voltage in order to power the magnetron antenna, which emits the energy that cooks the food. When a high voltage transformer fails, it will usually arc and have a burning smell. (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 high voltage transformer.)
Genuine Part
Common
06 - Thermal Fuse
The thermal fuse cuts off power to the microwave if the microwave overheats. To determine if the thermal fuse has blown, use a multimeter to test it for continuity. If the fuse doesn’t have continuity, replace it. The thermal fuse cannot be reset—if the fuse is blown, it must be replaced. (Caution: The microwave oven can store thousands of volts of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. Due to the potential for electric shock, it is extremely... dangerous to replace the electronic components in a microwave. Only a licensed technician should replace the thermal fuse.)
Genuine Part
Fits your Hotpoint Microwave
$39.30Save $223.86 by Fixing it Yourself
2:40
Step-by-Step Thermal Fuse Replacement
Technician Verified
Difficulty:
Easy
Avg. Repair Time:Under 30 minutes
Less Common
07 - Thermoprotector
The thermoprotector cuts off power to the microwave if it overheats. If the thermoprotector trips, the microwave won’t start or heat. To determine if the thermoprotector at fault, use a multimeter to test it for continuity. If the thermoprotector does not have continuity, replace it. (Caution: The microwave oven can store thousands of volts of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. Due to the potential for electric shock, it is extremely dang...erous to replace the electronic components in a microwave. Only a licensed technician should replace the thermoprotector.
Genuine Part
Fits your Hotpoint Microwave
$41.34Save $368.04 by Fixing it Yourself
6:31
Step-by-Step Thermoprotector Replacement
Technician Verified
Difficulty:
Easy
Avg. Repair Time:Under 1 ½ hours
Less Common
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