20 Most Recent Dimplex DS5603 Heater Questions & Answers

The output setting if turned off isn't adjusting the temperature in the room automatically if its off,and by turning the output up is like turning up the heat.By turning the output switch on you can let the heater automatically control the heat.Still you need to monitor the adjustments to your liking and then you know how hot it will be when you come back into that room.

Depending on how all it is you may or may not be able to. Go to the Dimplex website and contact their Customer Service Dept.

If you have opened the glass door you will see 2 switches and a rotating dial, thermostat. ! switch is heat, the 2nd is the flame effect. it is not serviceable to a consumer unless professionally trained.

On the back of the cabinet, about 3" to 4" up from the bottom, you should see a removable rectangular panel. Removing it, will give you access to the bulbs. Which are 60 watt, small base chandelier bulbs.
Turn the unit OFF & Unplug it, before removing the rear access panel.


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It sounds as though it has tripped the internal cut-out - this can be manually reset quite easily by yourself. It would probably be best to ring Dimplex customer services on 0845 6005111 to get them to talk you through it step-by-step though.

Hi,
There does not seem to be any really big issues with this heater, but it seems as though, if the fan is not running fully up to speed and is blowing the maximum possible amount of air that the high limit will trip.

I would take the blower off and clean it out very well and check the fins of the blower wheel to make sure they are clean...
Then check the passageways through the heater to make sure they are not clogged or plugged with dust and dirt...

Finally I would replace the high limit switch... this can start cutting out at too low of a temperature as it gets older...

heatman101

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My name is Bruce

Try cool it down, and give it a break (if you have used it constantly over a long time). Otherwise you could try clean it for dust, some heaters sucks alot if dust into themselves.
Last option is to get to the customer support at the store you bought it at, and tell them you're problem, they will help you gladly, and probably give you a new one if they can't fix it ;)

This generally requires greasing into the motor or bearing replacement which definitely requires a service.

it may have some internal lose connection or beeing a heater its darmostart may failed...... please check it out and have a trail with out dharmostart... so that you will get exact solution.........

Take it back to the dealer you bought it from!