Question about Dimplex DS5603 Heater

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No heat or fan when heater is started front lights up

No heat fron fan

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  • Anonymous Mar 05, 2008

    no heat coming out of the blower

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Http://extranet.dimplex.com/files/domain4103//DS5598%20DS5603%20DS5804%20PARTS%20&%20SERVICE%20MANUAL%20REV00.pdf
Look at page 4. If this is not it, you would have to see if you are getting power off the circuit board to the heater, should be 120VAC. If not the board is bad. If you do get power, check the thermostat - if it's good (power going thru it) then the heater element is bad.

Posted on Feb 27, 2008

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My utility heater by Pelonis model hb301 serial no. 3011137160 will not heat up anymore .


the over temp safety switch has failed. It is replaceable but is a pain to change as they are usually attached with special high heat crimp terminals. there should have been a a warning light on the front that is supposed to warn you when the high temp switch has been activated.

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My days on heat/ cool fan won't start on cool


Hi there, it's Jack at Dyson.

To run your Dyson Hot + Cool heater on fan mode, you need to turn the target temperature down to 0 degrees using either the remote, or the controls on the base. The target temperature is shown on the LED display on the front of the heater. When fan mode is activated the light around the on/off button will turn from red to blue.


I hope this helps, but if you'd like any further advice you're welcome to contact our experts 0800 298 0298 (UK), 1-866-693-9766 (US), 1-877-397-6622 (CA) or 1800 239 766 (AU).

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The heater lights and burns a blue flame but no heat or very little comes out the front


Well these simple heaters are good but can be quite annoying. This sounds as though you have lost the fan motor. You should hear a roar after ignition and being that all you have is a blue flame and little to no heat this tells me you lost the fan motor.

Dec 12, 2010 | Reddy Heater-30-55,000 BTU Variable

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Hi, I have a Brivis Buffalo. The heater will not run when the fan is set to auto even though the pilot light is on, and the wall controller shows heat on. When I set the fan to on, it just blows cold air....


My buffalo heater has just started doing the same thing about two hours ago, so will watch for any answers you get. My heater is over ten years old, maybe the heating element has "died"?
PLEASE can someone out there help us????????

Aug 02, 2010 | Heaters

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The heat will not turn on


If the fan is blowing with no heat, it is an indication you have an error code. Check the control board for a blinking light. If you find one, look on the wiring diagram that is pasted on the reverse side of one of the panels for a diagnostic chart. It will give you a starting point where to look for the issue. You can always jump the red and white wires on the thermostat and if the furnace starts, it's a bad thermostat. If not, look to the blinking light.

Mar 07, 2010 | Honeywell Electronic Programmable...

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Fan continues to run after heating


That's the fan switch. It's a thermostat that controls the fan coming on and off, it's probably failed and needs to be replaced. You can see it if you take the front off the furnace, the wires come off it and go to the fan motor.

Jul 13, 2009 | Dayton Gas Furnace Heater

1 Answer

With the thermostat at 70 and the house temp at 62 it doesn't start. I move thermostat from auto to manual heat and the fan blows but no heat. the system is 4 years old. gas is on but i think the pilot...


Check the air cleaner, exhaust vent for Ice or obstructions. Take off the front cover, tape down the door switch and tell us what happends. Look thru a small window for flashes of light on a control as well as an orange glow. Get back to us.

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Vornado heater doesn't work on high setting but only at low setting


Dust on the inside of the unit can cause the overload switch to shut many vornados down. Blowing the dust out of the unit with compressed air or a blower may help.

Another problem that causes vornados to stop working (light on - no heat no fan) is when one of the bearings starts to go bad in the unit. This causes the fan to be slower and less effective and the unit’s inability to move the heat away from the thermal overload switch again causes it to shut down.

Though you could remove the front and rear bearings and try to get replacements if it's even replaceable ... Once the bearing starts to go bad there is little that can be done ... HOWEVER, here is one solution to get more life out of the unit.

First, use a blower to blow all the dust out of the unit.
Then, because it is typically the front bearing that goes bad first, lay the vornado on it’s back (so the unit would be blowing air up toward the ceiling), this will relieve the front bearing somewhat and rely more on the rear bearing which tends to last longer.

The vornados I’ve had are all thermistor units ... that is, they don’t just turn on and off when the set temp is reached but in fact slow themselves down (both heat and fan) to keep some level of air circulation in the room. This is a good thing by the way.
There are usually two toggle switches .... one is a heat switch - usually Low & High .... the other is the thermistor switch (this sometimes is labeled “fan”) - usually Auto & High.

Once the unit is on its back ... Now, change the settings as follows:
Turn the Heat switch to LOW
Turn the Fan switch to HIGH
Turn the dial (with the temperature in degrees on it) to the lowest setting - which is somewhere around 60’ish.

Now turn the unit on and it should stay working.
Three things that could cause it to turn back off ...
You turn the Fan switch back to Auto.
You turn the Heat switch back to High
You turn the temperature selection dial too high ... though, you can cautiously turn the dial up a few degrees at a time ... the unit will start shutting down again when you set the temp too high ... then just dial it back down ... unplug for a couple minutes, then turn back on.

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2 Answers

No Heat!


Sometimes too much dust around the heating elements can cause the heater to switch off to prevent a fire. Check for dust build up first. You can try using a can of compressed air that can be found at many electronic stores.

Oct 26, 2007 | Vornado EH1-0014-01 Compact Heater

2 Answers

Honeywell HZ517 Baseboard Heater


You can try to disassemble the heater and look for something wrong like a loose wire: in order to do so: Unplug the heater and let it cool completely before disassembling it. Remove the rear grille and the control knobs. Remove the front grille by unscrewing the fasteners on the back of the housing. Remove the front grille by lifting the control housing and pulling the front grille toward you. The motor, fan, and heating element are now accessible for testing and repair. Remove the thermostat from the control housing and disconnect the wires. Remove the heat control's mounting screws and clips to access and disconnect wires. Good luck

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