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Hello ,I have a Rennai 417 Covector natural gas heater. After a period of 1-2 hours use the filter light comes up . then the heaters output is reduced. Both filters have cleaned thoroughly .Is there likely to be dust inside the unit that is causing the problem or similar issue that I can deal with.

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Blockage in combustion chamber or fan unit blocked with fluf and hair
clean filters on back of heater

Posted on May 25, 2011

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