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My kerosene forced air heater is not working and i need to find out if the photo cell has gone bad ,because i add a piece of flute pipe on to the front and the carbon may back up.it is not working since i did this.
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A cad cell is a photo-electric device that reads the UV rays given off by flame after it has ignited. If it does not 'see' the flame, due to a flame failure OR a cad cell failure, the control circuit is locked out.
Make sure there is no carbon on the front (window)of the cell and make sure its adjustment is in perfect alignment to the flame.
If you can get to the photocell, make sure that it is clean. To test it you need an ohm meter. Hook the meter to it and set the meter to read Kohm.. See what it says, then shine a light on it and see if the meter reading changes. IT should drop. If it does not, or the reading is really high, replace the photocell.
Just repaired a 60 and a 115. Neither was pumping air to fuel nozzle. Both rotor assemblies were bad. Pull off the filter assembly and then take off the plate on the back of the motor. You will probably find that the rotor is in several pieces.
The R100 is a kerosene heater and the RLP100 is a propane heater so I am not sure when one you have. If it is kerosene then you may need to check the pump pressure. Also the Safety swith can give you a cut out after 30 seconds.
If the unit is Propane then you could have a bad control board or a flame sensor.
You can call our service department at 1-800-475-5660
When the heater hums is the fan turning. If it is I would add more Kerosene. There is no shut off but the Kerosene is sucked out a tube from the top of the tank. This tube does not reach quite all the way to the bottom of the tank. Your heater should hold about 9 gallons if it is empty. A couple of gallons would give it plenty to run though. Let me know.
The unit should have a fuel & air filter. Check that both are clear. Inside the burner tube, there will be a photo-cell, if the lense is dirty it will shut the flame off. The photo-cell needs to see the flame. You can carefully and gently, clean the lens with a tissue, soft cloth, or Q-tip. Please let me know how its coming along.
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