Question about Reddy R155D Utility Heater

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Can not adjust air pressure to keep it running!!

I can get the unit fired but the pressure will not adjust. If put a clamp on the fuel line to restrict the pressure it runs fine (air pressure is still not right) , but when the top cover is placed on the unit the flame goes out!!!

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  • Anonymous Jan 14, 2009

    can't adjust presure

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  • 232 Answers

Provided the rotor and vanes are serviceable the pump should produce around 10 psi if you completely close off the airline tubing. If your gauge will not read with the tubing totally restricted, then I would check the relief valve to see if the ball is in first, then the spring, then the screw with the hole. These items should be in the longer of the 2 bosses. If no pressure reading at this time you either have a broken rotor or a defective gauge.

If you get some pressure with the tubing restricted, but there is not enough, then use soapy water to find the air leak. If there is a crack in the plastic end cover- replace it.

How to set the pump pressure

Posted on Dec 11, 2008

  • John Fleming Dec 07, 2011

    try replacing the air pump rotor and vanes, I had the same problem until I replaced them.

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