Question about Honeywell HZ-709 Oil Filled Radiator Heater

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Honeywell HZ-709 Oil Filled Radiator

When I turn the heater on, it operates for a few seconds, maybe up to 10, but then when I try to change the temperature, it shuts off automatically. It happens again and again.

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  • Anonymous Nov 15, 2007

    honeywell HZ-709 oil filled radiator heater... cuts back off as soon as i cut it on... help .. need heat!



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Problem: firs let's identify the problem, there is a sensor on the inside panel, made originally for safety if you tipped the heater off, it kill the power causing it to turn off...after a year of so that sensor get a little rusty/dirty causing it not to work correctly...

let's find out how to fix that annoying turn off..

tool needed, a phillip screw driver.. electrical tape or soldering unit..

fixing it: take out the top and bottom screws, to open the panel. after you open the panel you'll see a metal bar screwed to the front controller...take all 6 screws out...the front panel comes off....then there is about 4 screws holding an inner box, open that up..
inside there, you;ll see lots of wires...look for 2 small blue wire running together to a black sensor that make noise everytime you move it....

disabling the sensor
2 ways you can do this..

-you can cut the wire off using a scissor, and connect the blue wires together, use the tape to tape them.

- you can solder them together on the back of sensor panel...

there you go problem solved...

Posted on Mar 25, 2008


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Model hz709 manual

Was there any physical damage to the heater when it fell over?

The HZ-709 has safety features that might prevent its subsequent operation.
1 - It has a tip over switch but the heater should operate normally when it's upright again.
2 - A thermal cut-off fuse will permanently shut down the heater should it operate at a higher than normal temperature. Was it operating when it fell over, or could it have overheated?

If it's none of those, try contacting the manufacturer Kaz directly by email, Facebook, Twitter, etc. as the HZ-709 has a 3-year warranty.

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