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Yellow caution light

I have a Lasko Heater Model 5620,the caution light came on and the hearter will not come on. What can I do to fix it ?

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  • Anonymous Dec 02, 2008

    We have 2 space heaters. At the end of last winter the first one went and now we lost the second. There is a orange light. It is beyond cooled down and it still doesnt work. My husband read there is a fuse inside. So were going to try that out. Fingers crossed.

  • Clark with Big Toast Dec 11, 2012

    MILKHOUSE HEATER "CAUTION LIGHT" SOLUTION: Unplug the heater. Open it up and clean it out. I mean, buy a can of non-chlorinated brake cleaner and squirt all of the contacts good. Below the fan there is a sensor mounted on the heater element box on the bottom. That goes bad and causes it to trip. While you are there, squirt the motor bushings good with the brake cleaner and dab a drop of synthetic motor oil (just a drop) on EACH of the two motor bushings. Personally, I rewired this and bypassed all of the safety features. You can bypass that sensor without soldering or cutting any wires. All you have to do is unscrew the wires from the holder and then unscrew the tiny nuts and tiny bolts. Then bolt the together at one end (note the position) and put it back in the holder and tighten the screw to hold it in. This method fixes the issue completely as it removes the sensor from the equation. In fact, I just did that on my third milkhouse heater and it has been running solid for the last 15 minutes. Use your modified heater with caution!

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I also have the model 5620. with the yellow caution light on. After taking the unit completely apart I found 2 thermal fuses on the bottom of the unit(appox. size of a nickel). They are located under 'U" shaped brackets which are below the medal heating element. The thermal fuses do not reset. you could test them with a drip or two of souder or wire on the top - if you ran the heater this way it would be a safety problem as the fuse would be overridden. I am throwning mine away.

Posted on Jan 11, 2011

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1 Answer

I bought this heater August of 2014, and the red caution light is on but does not heat. What can i do?


don't send anything to Fixya. Please contact your dealer, or the site where you bought this.

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Hi,
First check the wiring to make sure that there are no loose connections... also check the thermostat to make sure that the heat is not affesting it directly and that the sensing part of the thermostat is away from the elemnt enough to sense the ait temperature and not the element heat....
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Our Lasko 5620 has a digital control, but we can't set the temperature. It says at 76 degrees, no matter what we do. Hitting the control buttons does not work.


Based from your comments, it seems that you have a
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If google and manufacturer website are of no help then ask a search agency like http://manualfox.com - They do a great job.
The service is not for free, but often worthy (you only pay if they find what you are asking for).

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From whatI have seen on base board heaters if I recall correctly, the thermostat may be sepperate. Usually thermostats on these have a round knob. 1 line goes to this and the other side of the thermostat goes to 1 end of th element and the othe line attaches to the other side of the element. Its possible you have the element wired in directky if it came without a thermostat and without instructions it may till be connected directly. You should have an L1 and L2 connection and hope there is a wire diagram on the cover.
THE reason these basebord heaters used to come without a thermostat is because they are (OR WERE)set up to add on additional heaters comming right on down the wall. At the last one you could tie in and get a correct rated thermostat installed in the center of the series.
Return to LOWES and ask them to remove the instructions and copy them for you from another like model. Or have them contact the manufacturer and request they fax a copy of instructions with a diagram. Also ask if the heater comes with a thermostat. It may stoill be sepperate in another kit. 

Mar 04, 2009 | Lasko 5610 Baseboard Heater

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Caution light


when did this started happening?

Mar 16, 2008 | Heating & Cooling

7 Answers

Lasko heater model 5620


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Feb 12, 2008 | Heating & Cooling

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Lasko 5610 red caution light, no power


the caution light is telling you something is wrong. most wired baseboard heaters have a hi limit cutout that may be bad.  it is connected into the heater circuit as a safety device.  you could jump out this element to test this theory.  if the element is shorted, certainly it would blow a fuse or circuit breaker.  if the element is open it won't heat at all.  you need to take it apart and use a test meter to troubleshoot it.

Jan 02, 2007 | Lasko 5610 Baseboard Heater

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