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Comfort zone cz2011 why will it not stay running

The heater runs for a few minutes and then shuts off. the digital display goes dark for a minute or so and then lights back up but heater does not kick back on.have to click on again

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  • j_fromm
    j_fromm Feb 20, 2012

    I cleaned the filter yesterday and it worked fine till today . I am staying in a travel trailer while i am working away from home, so the lights are 12 volts and i do not notice any dimming. I have tried different plug ins and it does the same. my computer is on the same circuit and has not kicked off any



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I had the same problem. It would cut off after approx 30 sec to 1 min. If the power shuts off or screen and lights go off most likely the problem is the thermal cutoff switch comonly called a thermostat. (Be Sure you are getting good air flow also check filter JIC) I found the problem but the parts in the systema are cheap off brand parts. Low quality circuit boards and soldering. The PN on the switch was unknown. Since I didnt know the cutoff temp I called the mfg which did not offer any parts, prints etc. This is an expensive throw away heater is basically the answer I recieved. My unit also had very low use as it is used as a supplimental heat ocassionally. Instead of tossing the unit I looked a little closer at the switch. I found 120 deg C stamped on one of the .25 QC terminals. On the front it is stamped 120/240V 16A. After a search I found the SRL250. It is a 250 deg F 15A 120/240VAC. (120 deg C = 248 deg F). It is 1 amp less which is fine as the 1500W unit should not draw 15 or 16 Amp. I now have the heater running again. You can find this part online or you local appliance parts house should have it. Or Cross ref to another mfg. Hope this helps.
Orig- 120/240VAC 16A 120 deg C (Open on Rise)
New - 120/240VAC 15A 250 deg F (Open on Rise)
Part# - SRL250

Posted on Mar 06, 2013


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To change your heater display from Celsius to Fahrenheit: press and hold the "down" button and the "enter" buttons simultaneously for 5 seconds and release. - VS

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SOURCE: Comfort zone infrared heater

The heater has to calabrated, this is done with a special remote control, that the people have you bought it from. It is a simple fix

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SOURCE: Central heater kicks off and on constantly

It is a strong possibility the flame sensing electronic thermocouple has become contaminated. Buildup on it causes malfuctioning like you described. To remedy it you simple remove the flame sensor and clean it with steel wool. here is a video I found on line:

Furnace cycling frequently

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Testimonial: "thanks, I think this just might be the problem. I really appreciate the help."

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SOURCE: cz 446 comfort zone ceramic heater shuts off

Hi, the problem you are having is the thermostat control, and dimming the lights is a indication of the neutral side of the control if faulty.It is drawing enough amps to make you're home lights blink, so I would stop using it now and if you are inclined to replace this control yourself I would. If this is something you would not care to take on, I would get an estimate for repair at a appliance repair store, compared to replacing the unit with a different one.I am sorry to tell you this, but it will only get worse and what I have recommend is for you're safety.
PS Please keep me informed of the situation, as I would love to be of any help you may need.

Posted on Dec 05, 2009

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