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I have 2 LifeSmart IR heaters that worked great last year but this year they will not stay on. They run for a couple minutes then beep and shut off completly.

I have 2 LifeSmart IR heaters that worked great last year but this year the heat will not stay on on either one of them. They'll run for a couple of minutes then beep and shut off completly. They are both on there own dedicated circuit.

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Posted on Jan 02, 2017

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SOURCE: Unit shuts itself off within a few minutes.

. Try taking a can of compressed air and spray in the vents in the front and the back of the heater. The heater has a sensor that gets dusty and causes it to shutoff to prevent overheating.

The heater should function properly once the dust is blown off the sensor.

Good luck!

Posted on Feb 19, 2008

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SOURCE: heater won't stay on

This product does indeed have a problem with the safety switch, that is only supposed to kick in when the unit is turned over. I had a total of 3 units sent to me from Kaz. Each time the unit would work for a short time, then slowly begin to turn off and on. I finally decided to take the unit apart and look for any obvious problems. There is a weighted swivel that will raise a contact point to turn the unit off in an emergency. The contact points would spark off and on, depositing a black carbon on them until they would no longer allow power to pass through. I cleaned the contacts with a fine finger nail file and bent one of the contact arms inward to make better tension between the contacts. This allowed the unit to stay on for longer periods of time. But even with the thermo-stat turned all the way up, the unit does not stay on long enough to heat the room. In effect, what happens is the contacts will continue to ark, putting black deposits on the contacts until you're back to square one. Apparently the unit also has a thermo-stat related problem. I'm sending the unit back again (they only made me send the power cord last time), but will insist on a different model this time. Good Luck

Posted on Feb 24, 2008

  • 8 Answers

SOURCE: Unit shuts itself off after a minute or two.

i have the same problem ... the fix open the heater and vaccuum the dust in front of the heating elementand the back ,,, and the fan ... you have to have the tirangle screwdriver ...mine i use the #zero square screwdriver.. after this it works like brand new .. i almost throw this one out ...

Posted on Feb 23, 2009

  • 2 Answers

SOURCE: Patio heater won't stay lit

I had this same problem - here's how I fixed it...

First: Never modify the safety features of your heater as has been suggested elsewhere on this forum. Modification of these features may allow the heater to work, but greatly compromises the safety of anyone near the heater.

The problem with the heater shutting off is most likely due to not enough gas flowing through the pilot orifice (this orifice is almost as small as the diameter of a human hair). When this happens, the pilot flame does not burn vigorously enough to activate the thermocouple. Hence, the thermocouple shuts off the gas and the burner goes out - usually you'll hear one "click" when this happens.

This is a maintence thing - meaning you may have to do this as a seasonal activity.

Here we go....
(1) Shut off the gas at the tank - or remove the tank entirely.
(2) Remove the screws that hold the burner shield and top shroud from the unit - set it aside.
(3) Remove the control knob - it just pulls straight off.
(4) Remove the panel immediately behind the knob you just took off. This will expose the gas valve assembly.
(5) Remove the cover that encloses the bottom of the pilot light/igniter (assembly). This will expose the bottom of the pilot assembly.
(6) Remove the screw holding the pilot assembly - there is a small hex nut on top, but under the burner that you'll have to hold to prevent it from turning. This will free the pilot assembly allowing you to gently pull it out of the pilot assembly housing. DON"T pull hard or you may break the gas line or thermocouple.
(7) Remove the hex nut that attaches the gas line to the pilot assembly and gently pull the gas line out. At this point, to ensure you have gas flowing through the pilot gas line, you may want to re-attach the gas tank, turn it on, gently move the gas line as far away from the spark ignitor as possible, temporarily replace the control knob, and turn the knob to the "Pilot" position & push it in. DO NOT DO THIS ANYWHERE NEAR AN OPEN FLAME OR A LIGHTED CIGARETTE! You should be able to hear a hissing sound as the gas flows. If you do not hear it, the problem may be with your gas valve, and if that's the case, I'm sorry this procedure likely won't solve the problem.
(8) Remove the pilot light tube (orifice) from the mounting bracket. There's a hex nut on the back side that holds it in. Be careful not to damage the hex nut or the threads. You'll need a pair of pliers (to hold the bracket) and an adjustable wrench for the hex nut. Make note of the orientation of the pilot burner diverter so you can put it back together the same way it came apart.
(9) Using a blast of compressed air, blow air through the pilot orifice. You should be able to see just a very (and I mean very) small pin-point of light through the pilot burner. If not, use a single strand of very fine wire - like one strand from a 18 gauge braided electrical wire - and run it through the pilot orifice. Carbon build-up can clog this orifice - which can prevent the pilot from burning vigorously enough to heat up the thermocouple. Cleaning it out periodically will likely solve the problem.

Put everything back together in reverse order as noted above - making sure your gas fittings are tight and don't leak. Once it's all back together, light the pilot flame as normal and once the thermocouple heats up, the heater should work like a charm.

Posted on May 25, 2009

  • 288 Answers

SOURCE: all pro heater runs for a couple of minutes.then

it only shuts down because of an overheating condition or the lack of fuel. if you have an ohm or multimeter, check the ohms on the fan and see if you have any resistance. If you do the fan is good but may still not be putting enough air across the heat exchanger to safely alloww the heater to run without causing a fire.

Posted on Dec 19, 2009

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