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Q: I’ve been noticing that after I use the microwave, the fan stays on for minutes after the cook time is over. Why won’t my microwave fan turn off? Is this a problem that I need to fix?
A : microwave are an implausibly convenient kitchen appliance , and it can be teasing when the microwave oven buff move around on by itself with no rhyme or reason . There are some avertible cause for a microwave oven fan that keeps running , but other sentence , there may be issues with the inner works of the microwave oven that need to be addressed when the microwave fan wo n’t turn off . Even thebest build up - in microwavesmay require to be repaired by an contraption fixture technician . For those marvel why a microwave lover wo n’t go off , some causes admit :
The microwave might be overused.
One of the most vulgar reasons for a microwave lover not working properly is that the microwave oven is being pushed past its demarcation line . Most microwave have a thermoregulator inside that switch the fan off when the microwave oven interior is cool . Microwaves can benefit from a cooling period after utilization , especially if they ’re run for 5 to 10 min or recollective . Using the microwave for back - to - back heatings for several minutes at a time can make it so that the microwave oven needs redundant time to cool off after use .
The microwave could be overheating from problems with the control board or thermostat.
microwave oven have a thermostat deep down to regulate the temperature . This thermoregulator signals the sports fan to turn off when the microwave has cooled to an appropriate temperature . If the thermostat is defective , it might not indicate the microwave buff to plough off , even when it is wholly cool .
Conversely , there could be a problem with the control board . The control display panel is the “ head ” of the microwave , and it master the exhaust fan on the microwave oven . It ’s an upcountry part of the microwave oven that ’s seize to the exterior ascendance dialog box ( the part that you use to input the Captain James Cook time and press “ first ” ) . When a release on the control board is bid , it charge an electrical signaling to the control gameboard . If there are any defective connection in the control circuit board , they could keep the microwave oven fan from turning off or result in a microwave oven buff that turn on when the doorway opens .
Another sign that there ’s an issue with the thermoregulator or control display board is if the microwave feel like it ’s getting hotter than usual , even after a short use . Amicrowave not heatingenough could also be relate to the control board or thermostat . These problems are best addressed by an appliance mending technician .
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If the kitchen is too hot or the microwave doesn’t have proper ventilation, the microwave may not be able to cool.
If the oven ’s been on all day and multiple potful are bubbling by on the stove , the kitchen ’s ambient temperature will be higher . This can make it harder for the microwave to cool down after it ’s been in use , result in a microwave oven devotee that turns on automatically or runs for longer .
It ’s also crucial to consider the microwave ’s location in the kitchen . Microwaves can profit from have small gap between the back , top , and sides of the convenience and the fence in wall or cabinets to allow for the microwave oven air travel release to have appropriate airflow .
Some over - the - range microwave may be mounted too cheeseparing to the stovetop , so if the stove or oven is on and producing heat , the heating could rise and actuate the rooter under the microwave . TheInternational Residential Coderecommends that the top of the microwave oven be 30 in from the stovetop ; however , some manufacturers may have deviate installment instructions .
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Clogged air or grease filters can keep a microwave fan running.
Over - the - range microwave typically have two filters : an air filter to reduce odors , and a grease filter to minimize buildup in the exhaust fumes fan . If these filters are dirty , it can have the microwave to run less efficiently — and cause the fan to run more .
zephyr filters are often place under the top vent panel . These filters are normally made of net or charcoal . The soil filter is ordinarily located on the bottom of the microwave . Both of these filter can be removed and cleaned with soap and H2O . The grease filter may benefit from hot water to soften the oil buildup . If the accumulation on either filter is too stubborn to clean house , replacements may be necessary .
The fan motor could be malfunctioning.
Another issue that could be at play with a microwave oven fan that wo n’t sour off is a faulty fan motor . The fan motor , as the name paint a picture , is what keep the buff running play . Sometimes a fan motor may be defective . In these cases , an gizmo repair technician may be able to repair it . If there ’s impairment to the fan motor , the part might need to be put back .
An appliance repair technician can take care of microwave issues.
Homeowners may be able to trouble-shoot some microwave problem , like allowing the microwave to cool down off after long use of goods and services or cleanse the filters . However , the intermediate DIYer may not be able to fix issues with the microwave ’s inner workings . When a microwave oven fan wo n’t turn off , it ’s saucy to touch a local gismo stamping ground technician who knows how to remedy any malfunctioning parts and can get to the bottom of the problem . The intermediate microwave lasts 7 old age , and that lifespan can decrease with heavy economic consumption or wretched maintenance . An appliance repair technician will roll in the hay when the microwave can be touch on and when it ’s past its prime .
informant : Hunker , Whirlpool
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