Question about Holmes Products HQH307 Compact Heater

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Cleaning behind front screen.

There is a significant amount of accumulated dust/hair behind the front screen, close to heating elements. The screen holes are too small to allow any cleaning tool to reach. This is a potential fire hazard.

Do you have a solution, other than disassembling the entire unit??

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Sorry my friend. You and I both know the answer to this. A complete disassembly and cleaning is needed. A fire hazard is a very serious event waiting to happen. Take care of this ASAP!

Ray

Posted on Nov 07, 2008

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Sounds like it's working but not getting cold enough in freezer or refrigderator


In my experience, the biggest culprit causing these symptoms is the defrost heater. This is a heating device that melts frost off the "evaporator coils" better known as the coils usually located inside the freezer area of the unit. These coils get very cold and warm air that is let inside when any door is open, will carry moisture with it that will accumulate like water on the outside of a cold glass in summer time, only it accumulates on the evaporator coils and turns to frost.

As your fridge cycles through its operating stages, one part of the cycle turns off the cooling and turns on a heating device of varying types to melt the frost and ice off of the evaporator coils so it can drip down and flow through a small hose through an opening in the bottom of the fridge and into a pan underneath the fridge where it evaporates back into the air again.

If the heating device never comes on, or becomes inoperative, the frost will slowly continue to collect on the evaporator coils until it becomes a solid block of ice. This now greatly reduces the ability of the evaporator fan to blow the cold air around the coils throughout the freezer and the rest of the fridge. The ice built up around the evaporator coils will still provide some cold, but will significantly prevent the fridge from operating properly.

Another cause may be the evaporator fan not operating correctly. If it doesn't blow air over the evaporator coils well enough, cold air will not get distributed through out the fridge. Cold air tends to "fall", so the bottom of the freezer will be the coldest. Generally, there is an adjustable hole in "side by side" units so that the amount of air coming through that hole can make the "meat crisper" colder. In fridges where the freezer is on the top, I've seen the evaporator coils (which often incorporate "fins" like those on a car radiator, turn into a solid block of ice.
25823064-nzcmabjorfygbev20le00e4d-4-1.jpg Also check for dust collecting on the condenser coils on the outside of the fridge. These dissipate heat drawn from inside the fridge and take it outside the fridge. These are often located on the back of the fridge or underneath the fridge. Dust and fluff act as insulation and degrade their ability to work properly.

Obviously, to repair the fridge, you should relocate the contents of your unit until you can repair the fridge. Fixing your fridge will take at least a few hours even if you can get your hands on repair parts quickly. This will involve unplugging the unit and locating the items I've referred to. Either allow the accumulated ice to melt naturally or GENTLY speed up the process with a hair dryer or heat gun. Do not use any force removing the accumulated ice and frost, you could easily damage the coils and make things much worse than they already are. Even to the point of making the unit uneconomical to repair.

Without your posting a make, model, type of freezer/fridge arrangement or other details, it is difficult to assist you further. Part placement and component locations vary greatly in this appliance.

Aug 15, 2015 | Refrigerators

1 Answer

While making bread it has a sudden smell of something burning, what can this be?


That often happens because when the flour is mixed in the beginning small amounts are kicked up in a dust and can settle then on the heating element. Later when the heating elements comes on to bake that fine flour dust can smell for a few seconds. until burns off. If the smell doesn't go away after a while then you may have a problem

Mar 08, 2015 | Toastmaster TBR15 Bread Maker

1 Answer

Bionaire BCH9212 does not produce heat


These Bionaires (including your 9212 and its taller version, the 9224) have a small temperature safety relay mounted slightly above the ceramic heating elements. Its purpose it to shut off the elements if they overheat, which I would assume would happen if the fan stops working or possibly if the outlet to the front becomes blocked (and these ceramic elements, which are like a radiator core, do get a lot of dust accumulated on the inside which will block air flow). The sensor is a small unit with exposed contacts and if these contacts open (driven by the temperature sensor connected to them) or if these contacts do not have good contact (say by dirt or oxidation build up that makes them effectively fully or partially open) then the ceramic elements will not work. My best suggestion to explain your problem is that the contacts on that safety switch became dirty during storage. The only way to verify that (and possibly repair the unit) requires taking the outside shell off and cleaning the contacts of the safety switch with either a small, fine file (like the old ignition files) or maybe fine emery cloth.

Nov 30, 2011 | Bionaire Heating & Cooling

1 Answer

Electric dryer spins but is not drying


Heat box may have blown the thermal overload protector or heating element / wire is burnt out.

Common problem if dust / lint has accumulated in the dryer internally. May need to dismantal dryer front and remove tumbling drum to get to heat box (unit dependant).

Vaccum clean out all the lint and dust before working on replacing or repairing heat box.

embeytas

Jul 04, 2010 | Dryers

3 Answers

Lasko heater shut down


The 5840 has a problem with dust getting on the heater element and turning itself off after 2 minutes running. HERE IS THE FIX. Unplug the unit from the AC outlet, Then using a can of dusting air ( the kind you use to clean a computer key board) aim the compressed air INTO the middle louver of the upper adjustable heater vent and blow out the dust that has gotten on the heater element. ( You are actually blowing into the unit, clearing off the lint/dust that has gotten on the backside of the heater element that you can not see without openning the entire case).You can see the front of the heater element inside the louvers, It's the shinny metal part that looks like a small radiator.It sits behind the middle louver. After blowing out the dust, shake the entire unit to allow the dust to settle to the bottom of the case. Using a vacum cleaner try to vacum out any dust from the LOWER FRONT intake. Once the dust has been blown OFF the heater element, the unit will work just as new and not shut itself down!

Feb 15, 2009 | Lasko Ceramic Heater

5 Answers

Lasko heater run about 5 minutes and shut down/how to clean


i have the same problem ... i almost throw this heater out ,,
the fix .. open the unit theres 6 screw at the back.. remove it if you have problem removing the triangle screw use the small square head screw ...size 0 and then you also need to open the black plastic ..
i believe it has 8 screws .. then vaccuum all the dust .. chances are the front and the back of the heating element is covered with dust ..
after that put all back together and i guaranteed it should work like brand new ,,,, dont worry its not that hard ... the only hard thing for me was removing the 2 triangle screws at the back .. Goodluck

Dec 09, 2008 | Lasko Ceramic Heater

1 Answer

Lasko5840


The 5840 has a problem with dust getting on the heater element and turning itself off after 2 minutes running. HERE IS THE FIX. Unplug the unit from the AC outlet, Then using a can of dusting air ( the kind you use to clean a computer key board) aim the compressed air INTO the middle louver of the upper adjustable heater vent and blow out the dust that has gotten on the heater element. ( You are actually blowing into the unit, clearing off the lint/dust that has gotten on the backside of the heater element that you can not see without openning the entire case).You can see the front of the heater element inside the louvers, It's the shinny metal part that looks like a small radiator.It sits behind the middle louver. After blowing out the dust, shake the entire unit to allow the dust to settle to the bottom of the case. Using a vacum cleaner try to vacum out any dust from the LOWER FRONT intake. Once the dust has been blown OFF the heater element, the unit will work just as new and not shut itself down!

Oct 22, 2008 | Heating & Cooling

1 Answer

Sider webs


Here's my suggestion: I have a 55" Philips HDTV and I live in an area known for excessive dust and more than a fair share of spiders. I checked online and found that there are usually 1-4 access panels that can be removed for cleaning, repair, etc. Here are my steps: 1. Remove the upper most panel (usually a trapezoid-shaped plastic "box"). There are anywhere from 1-4 "hangers" that, once all the screws are removed, will hold the panel in place while you are unscrewing the last few screws. 2. Remove the panel and clean with a lint-free cloth the entire inside of the panel. This is an area where a lot of dust and spider webs can be found. 3. Grab your vacuum cleaner and carefully clean away all the spider webs. Making sure you don't bump into the inside of the projector screen! 4. Spray a small amount of dust cleaner or window cleaner on the lint-free cloth and run the entire length of the TV. Clean all surfaces this way except the reflector (mirror). It is best to clean the mirror with compressed air (get it anywhere - usually in the computer section). 5. Using a flashlight or bare lightbulb, thoroughly inspect all surfaces for dust and spiderwebs. And, of course, clean anything missed the first time around. 6. Using a clean lint-free cloth (I find cotton underwear from Wal-Mart works the best), spray a very small amount of window cleaner (streak-free Windex, etc.) on the cloth and rub the cloth together until almost dry. Then, simply wipe all three lenses clean. 7. Replace the back panel and pay close attention to the alignment of the holes to ensure the screw goes back in the same way it came (if not, the panel could ultimately lose the seal and allow for more dust). 8. Allow for several minutes drying time before turning the set back on. Hints: 1. Clean the speaker area, too. 2. Repeat the process at least each 30 - 45 days to ensure optimal performance. 3. Use a small computer fan to circulate air behind the set if the area gathers excessive dust. They're quiet and can be purchased (almost anywhere - Radio Shack, Wal-Mart, etc.)with switches that are easily accessible.

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