Question about DeLonghi DUH300 Utility Heater

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How do I reset ?

How do I get my DeLonghi DUH300 Utility Heater to turn back on after the overheating switch has activated & automatically turned it off?

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It should come on automatically, if it does not then the thermal switch is faulty, and has to be replaced.

Posted on Jan 27, 2008

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Posted on Jan 02, 2017

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1 Answer

My delonghi dragon safeheat is cutting off. I have not set the timer to turn it off. Is this a safety shutoff from overheating?


It does have a thermal safety and it very well could be the problem. I looked up this review for you. I hope it is what you were looking for. Roger http://products.howstuffworks.com/delonghi-dragon-oil-filled-radiator-heater-hm25e-review.htm

Apr 06, 2011 | DeLonghi Heating & Cooling

1 Answer

I have a electralog fireplace model #cs 3311. It doesn't stay on very long. Even if i turn the thermostat up it doesn't turn on


It's probably the Temperature Cut Off Switch. It turns the heater off if it's overheating. To reset the switch turn the Main On/Off Switch to OFF . Wait 5 minutes and turn it back ON.

If you need to continuously reset the heater, unplug the unit and call Dimplex North
America Limited at 1-800-668-6663.

Hope this helped to solve your problem.

Mar 08, 2011 | Heating & Cooling

1 Answer

How do I use the Delonghi trv0715 1500w Vento High speed convection heater


The owner's manual is available as a PDF here: http://www.delonghiusa.com/index.php?product&nid=107 .

Many recommend you plug the heater in and turn it on in a well-ventilated room (like a garage) for the few hours of use. If you are using the heater to warm a room, plug it in with the thermostat set to maximum and set the power selector to 3 until the room reaches the desired temperature. Then rotate the thermostat clockwise until you hear a click. You can set the power level to 1 or 2 to conserve energy while maintaining the current temperature settings.

If you are trying to avoid frozen pipes in an area, plug in the heater and set the power selector to 3 and thermostat to *.

Always remember to keep anything flammable away from the heater (loose drapes etc.) There is an overheating protection circuit built into the unit. To reset it, you need to call the DeLonghi service center.

I hope this helps.

Cindy Wells

Mar 05, 2011 | DeLonghi Heating & Cooling

2 Answers

Why does my dimplex model bf8000st fan and heat turn off after 2 or 3 minutes? the flame lights keep working, just no fan or heat.


"Resetting the Temperature Cutoff Switch

This unit is equipped with a thermostat which controls the temperature
of the room by turning the heater on and off. The heater is protected
with a safety device to prevent overheating. Should the heater
overheat, an automatic cut out will turn the heater off and it will not
come back on without being reset. It can be reset by switching the
Main On/Off Switch to off and waiting five (5) minutes before switching
the unit back on."

http://dimplex.com/cms/publications/7208680300r03_EN.pdf

Dec 13, 2010 | Heating & Cooling

1 Answer

C3451


C-3451 on the bizhub range indicates Heat. Heater Trouble.
This is not resettable in the normal manner.
To reset, turn machine off (switch insde front door, bottom left)
Turn back on, but hold down the UTILITY button while doing so. Keep UTILITY pressed until you get a message on the display saying 'trouble reset'. Remove minger from UTILITY and touch 'trouble reset'.
Now turn the machine off again, same switch as before.
Turn back on normally and see if it warms up and you get a green button.
I have had a few machines do this code for no apparent reason. I've had others which required a new fuser unit.
Hope yours is the former.
Good luck

Regards

Tam

Mar 23, 2010 | Konica Minolta bizhub C250 All-In-One...

1 Answer

Taknlees system overheated and turned off.


The high limit should be on the top side of the unit near the exhause. Check your manual for location and to find out if it can be reset.

Mike Wenger

Apr 04, 2009 | RTO American Heat Tankless Electric Water...

1 Answer

Instructions for American Standard Safe-T-Heater #9075.120


Once the heater is installed and the whirlpool pump is operating, the heater is totally automatic. The heater will help maintain the temperature of the water in the bath. The heater is equipped with a preset pressure switch. The pump must be running with water flowing in the whirlpool to allow the heater to turn on. The Indicator Light light turns on whenever the heater is operating. The heater includes an exclusive "Intelligent High-Limit". This safety circuit will not "false trip" from hot tap water. It will only turn the heater off if the thermostat fails. If the high-limit trips frequently, call a service technician. To manually reset the circuit in the event that the "High-Limit" switch has been activated, simply (1) Turn off the whirlpool pump. (2) Drain water from the tub. (3) Remove power from heater by unplugging at receptacle or turning off circuit breaker. (4) The heater circuit will automatically reset in less than 15 minutes. (5) Restore power to the heater. (6) Whirlpool bath is now ready to use.
Good Luck,
Wayne
wayner29@aol.com

Mar 29, 2009 | American Standard Home

3 Answers

I need to reset my Delonghi radiator. it overheated


Unscrew the four screws holding the front faceplate on (two are on the bottom of the radiator). From the bottom end gently pry up the faceplate, it will stay attached at the top end near the temperature selector. Look inside and you will see a black bridge like piece of metal with a plastic and metal thing stuck to it's center with two wires leading into it. It's basically a connection that melts when high temperatures are reached, therefore it must be replaced (pictured). You can bypass this by prying the metal bridge out, removing the wires leads from the switch and connecting them using a wire nut. BE AWARE THAT THIS WILL OVERRIDE THE HIGH TEMPERATURE SHUT OFF MECHANISM, so don't use it for drying off your coat again._361.jpg

Feb 08, 2009 | DeLonghi 6707E Oil Filled Radiator Heater

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