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Why is comfort zone heater cz1500P making a noise when on like a vibrating noise but still heating

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Fan is dirty

Posted on Apr 23, 2015

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Need a new fan motor for our CZ220 Comfort Zone Heater. 5000 watts.

FIXYA does not sell products nor do we search the web for them .try comfort zone website or google it Google

Jan 04, 2018 | Comfort Zone Heating & Cooling

1 Answer

Comfort zone cz1500p won't turn on

Too many possibilities to know cause, but a simple Google search for Comfort zone cz1500p manual yielded this link:
Check the Troubleshooting section.

I’m happy to help further over the phone at

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Heater light comes on and makes noise but no heat.

most pressure switches are set at 1-5 lbs from factory. remove water supply to pressure switch and turn on pump for a second. if there is water pressure, you will know. lol. if water shoots out, reattach the hose. at this point, you need a service technician

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Comfort zone cz2011 fan very nosiey

It is under warranty, is it not. check it out. or create merry hell with the installer.

Jan 11, 2014 | Comfort Zone Heating & Cooling

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My Comfort Zone Oil filled CZ7007J Radiator is not heating, it was working just fine when I turned it off, but when I turned it back on, no lights, no heat, like it's getting no power. Bought it

doubt there is any warranty being made in 2010 but they do have a heating element very similar to an electric water heater .I know of no repair shops that work on them.nor where you might find an element . SORRY Personally I found these oil filed heaters cost more to operate than the ceramic. types

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1 Answer

When it comes on, it vibrates so loud can hardly hear over noise.

It sound like your fan is loose and needs to be tightened. Remove the four screws on the bottom of your unit, slide out and tighten the screws on top of unit. If you need to get in the unit remove the back screws, you will have to remove the temp sensor to remove the back panel. Remove the side panels on both sides. You should be able to get to the fan.

Nov 19, 2011 | Comfort Zone CZ1500WC Infra-Red...

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I bought a Comfort Zone (RedCore Concept R-4-20100625) three months ago and already have a problem! The heater makes a loud noise continually once it has hearted up and after I turn the heater off the...

If it's under warranty, the "hassle of shipping it off is small", compared to possibly doing more damage, while trying to repair it yourself and voiding the warranty. Once they repair it, the warranty starts over again. Just make sure you get authorization from Comfort Zone, before shipping it to them..

Mar 21, 2011 | Comfort Zone Heating & Cooling

1 Answer

My comfort zone is not heating I had a infarared bulb that went out replace the bulb the heater still want come on it is hard to get techical support to tell what's wrong.

The bulbs on the older (pre-fall of 2010) Comfort zone heaters are in pairs... if one bulb of the pair is burnt out the other will not work. Also they are not easy to line up when replacing them back into the recepticle...they must line up perfectly to work.

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2 Answers

Change temperature from Celsius to Fahrenheit on a comfort zone h

To change your heater display from Celsius to Fahrenheit: press and hold the "down" button and the "enter" buttons simultaneously for 5 seconds and release. - VS

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