Question about Optimus H-4436 Electric Heater

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Optimus H-4438 Electric Heater

I have the H-4438 model but I am having the same malfunction as described in reference to the H-4436 model. It power's up then a few seconds later the alarm signal lights up. No heat is being generated but as described with the H-4436 model, the heater still rotates. Is there a reset button? In case either there is no reset button or resetting doesn't do the trick, what would be the next step in fixing this problem? Please help, it's very cold where I live.

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  • mcheav Feb 15, 2009

    I need help with this problem too. I know people are telling me to send it back but that's just it. I can't send it back. I bought it at Costco and now i can't find the receipt or the owner's manual. Isn't there a reset button or something on the heater. PLEASE HELP ME. it's very cold at night.

  • Anonymous Feb 21, 2009

    I have the same problem. The unit rotates but there is no heat.
    The alarm light is on but I see no way to reset. Jim Piercy

  • Anonymous Mar 12, 2009

    I found the number 714-956-1300 for Optimus. I called, and an actual person answered the phone. She asked for the model number and the problem (mine also had the alarm light on, but everything else worked). She said the heater has a 3-yr warranty, so if I send it in with $18, they will repair it (she said it's the fuse). She said they won't require my receipt. Hope that helps somebody.

  • Tod Karlson
    Tod Karlson Dec 11, 2012

    I read another article and tried the "smack it" method that worked for some others, but alas no dice, no such luck for me. Upon removing the back round cover I noticed a section of the wiring which is covered by an insulation sleeve & screwed to the back of the heater with a little metal clip had a red wire going in one end and a white wire coming out the other, so I suspected something like a fuse was being hidden inside. Bingo! Its part number is "SF119U-1", made by SEFUSE rated 15Amps/125degC. You can get 5 of them for $5 on eBay, or they probably have them or an equivalent at Radio Shack. The not-so-fun part is that it's soldered, so if you don't already have the stuff needed to solder, you're in for a bit more expense to make this repair. If you're handy, you can avoid any future problems by installing a circuit breaker, which will allow you to reset it instead of replacing it. RadioShack has a 15Amp breaker (pt# R59-15A) made by NTE for $5, also available on eBay. It has spade terminals, so you could actually make the repair without soldering, but I like to overkill and crimp them on, AND solder them.

  • kwilks3
    kwilks3 Dec 08, 2013

    I had the same problem. I tried the "remove the fuse" trick, and that did not work. There is a round heat sensor or thermostat at the top of the dish, located just above where the heating elements are. This is what went bad on mine. If you take the back of the heater off, the part with three screw holding it to the back of the dish, you will expose some wires. This is the same spot you do the "fuse trick". I found that if you connect the white wire you removed the fuse from to the set of red wires that are connected to each other by heat shrink tubing, you by-pass that thermometer/sensor. I did this by cutting the red wires apart(removing the heat shrink connection), reconnecting the red wires back together using a ring terminal, then connecting the new connection(ring terminal) to the post where the white wire is connected to. By doing this you will be by-passing a safety feature of the heater, so do this at your own risk. But now my heater works fine. Also a quick search to find a replacement sensor for this heater came up empty. hope this helps some of you.

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Optimus electric heater can be found on amazon, click here and take a look: Amazon com optimus electric heater. I hope this was helpful. Cheers

Posted on Dec 21, 2014

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On the back of the heater, remove the element connection cover ( 3 philips screws). A white wire from terminal goes into a white sleeve and turns in to red wire. Under this sleeve is a special fuse, TCO (Thermo Cutoff) that has that has blown.SEFUSE, SF110Y, 15a

Posted on Nov 27, 2009

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  • scoutmup Oct 11, 2010

    yes it is the fuse , i cut the fuse out and wired it without, works, i would not use the heater unattended, or leave it pluged in when gone...

  • Jim Morrison Jan 04, 2012

    This FAILED for me, alarm light still on and and no heat. This thing is barely slapped together. You should see how the screen cover is barely held on by a few cheap pieces of metal J-U-N-K!!!

    1. I am going to RipOffReport.com, and ComplaintsBoard.com and posting complaints about this PIECE of S*** that cost me $55.00 at sams club and is worth about $5.00. This is amazing such a poorly built heater is sold.

    2. Then I am >>> RE-BUYING <<< the same heater, and swapping out the defective one and returning it to sams 2 weeks later. THAT is how to handle this. Make sams club and/or costco pay for it!!!!

    This A-HOLE company should PAY to have it picked up and sent back for FREE. Shocking they would actually ask anyone to pay $15 to ship it PLUS $18.00 fee for fixing their piece of S**T!!

  • Jim Morrison Jan 04, 2012

    See my Note below. Also clean up the old defective one by removing the 3 screws and pulling off the cheap screen cover, and wiping down the dish part w/ a damp cloth and drying it, and wipe down the rest of it so it looks new. Then RETURN the old one 2 weeks about you RE-BOUGHT a new one.

  • kwilks3
    kwilks3 Dec 08, 2013

    I had the same problem. I tried the "remove the fuse" trick, and that did not work. There is a round heat sensor or thermostat at the top of the dish, located just above where the heating elements are. This is what went bad on mine. If you take the back of the heater off, the part with three screw holding it to the back of the dish, you will expose some wires. This is the same spot you do the "fuse trick". I found that if you connect the white wire you removed the fuse from to the set of red wires that are connected to each other by heat shrink tubing, you by-pass that thermometer/sensor. I did this by cutting the red wires apart(removing the heat shrink connection), reconnecting the red wires back together using a ring terminal, then connecting the new connection(ring terminal) to the post where the white wire is connected to. By doing this you will be by-passing a safety feature of the heater, so do this at your own risk. But now my heater works fine. Also a quick search to find a replacement sensor for this heater came up empty. hope this helps some of you.

  • Sun Chi
    Sun Chi Jan 09, 2014

    kwilks3 I tried the fuse removal as well with no luck. Then I tried what kwilk3 suggested and it resolved the issue. Thanks.

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Bought mine this past fall Sams. wire going through plastic burnt into where they squeeze it through. Nearly caught on fire. Took it apart broke connector on what looks like a balance switch. Soldered back put back together. Guess what. Doesn't work. help

Help

Posted on Feb 07, 2012

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