Question about Reddy R70ET Utility Heater

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Gas wall heater

The heater runs for about 10 minutes and shuts off.

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  • Mustafa1958 Dec 04, 2007

    I have a question about a natural gas wall heater, about 65"high and 16"wide, it runs for about 10 minutes and then shuts off??

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1 Answer

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  • Master
  • 625 Answers

The R70ET is not a wall heater but a bullet style torpedo heater. it runs for a while then shuts down. first check that the photocell is clean. you'll need to unbolt the top cover. when pointing it make sure it "sees" the flame in its holder. if it still shuts down replace the photocell. the site www [dot] desatech [dot] com is the same place I get parts from for heaters.

Posted on Dec 04, 2007

  • THOMAS MIERZWA
    THOMAS MIERZWA Dec 05, 2007

    there are a couple of things to check. look at the heat anticipator setting on the thermostat. it must match the gas valve's current rating. .2 or .4 or .6 or something like that. a wrong anticipator setting will extend or short cycle the burner. if your's is a millivolt flame sense cappillary see if the pilot stays lit during the main valve firing.

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6 Suggested Answers

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  • 1 Answer

SOURCE: Natural Gas wall heater

It could be either the thermostat or thermocouple is not getting correct voltage so will intermittent turn on and off.

Posted on Jan 21, 2008

  • 2 Answers

SOURCE: heater keeps shutting off !!

I have model 5532, but I think they all have the same problem. There seems to be a safety device in the ceramic heater that turns off if it gets too hot. It "remembers" when this happens as well and will shut off until it is unplugged for 10-15 minutes.

This happens on even lightly used heaters if used in dusty conditions. Dust builds up behind the ceramic heater and the lack of flow causes it to overheat. The unit must be dismantled and the dust brushed/vacuumed out. The good news is that not only will the heater work again, but it will have better airflow too!

To do this, tech support and other people say to "clean the rear grill", but my rear was not dirty. The front grill had some dust that I vacuumed clean, but did not help. In my unit there are no filters before the air goes through the heater element. The problem is in the center of the heater. Taking out the internal fan (four screws on the sides of the squirrel fan box), I could see that the radiator was over half covered in dust. I cleaned that dust out using a shop vac and the problem went away.

Opening the heater was a little tricky, two of the screws were triangle head screws. Once inside, however, it is a simple proceedure to remove the fan. Of course, you should unplug the heater and wait a while before opening it up to make sure there are no electrical charges stored in the unit.

Posted on Apr 05, 2008

  • 75 Answers

SOURCE: Natural Gas wall heater

It sounds like the thermocoupler is either not adjusted into the flame properly, or you may have gotten a bad one. The thermocouple is the main thing that makes the pilot work.

Posted on Dec 22, 2008

  • 4 Answers

SOURCE: ive have a william wall heater i replaced the

limit switch is over heating. must have an auto-reset. check to see if theres an obstruction in the chimney or heat exchanger. good luck! rrmechanical 888 411 hvac

Posted on Jan 21, 2010

  • 383 Answers

SOURCE: heater runs for about 10 seconds and shuts down

You say it shuts down-
Does it have to be reset to get it going again?

Does this heater have a pilot?
if so, when was the Thermo Couple last changed?

Tell us more clues, so we can help you get to the next step.

Mack B

Posted on Jan 25, 2011

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Is this a new unit or old? Does it have a fan or not? I need a little more info to walk you through this.

Dec 04, 2007 | Reddy R70ET Utility Heater

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