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How to Realign the Motor in a Space Heater

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The Comfort Zone CZ442 will produce a loud screeching noise if the motor is jolted out of alignment. Left in this state, the motor may eventually burn out completely. This guide covers the realignment of the motor.

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  1. How to Realign the Motor in a Space Heater, How to Realign the Motor in a Space Heater: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Before you begin, unplug the heater from the outlet.

    • Remove the four rear Phillips screws. Apply firm pressure when removing all screws to prevent stripping.

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  2. How to Realign the Motor in a Space Heater: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 How to Realign the Motor in a Space Heater: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Carefully remove the front heater panel.

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  3. How to Realign the Motor in a Space Heater: crwdns2935265:03crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 How to Realign the Motor in a Space Heater: crwdns2935265:03crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 How to Realign the Motor in a Space Heater: crwdns2935265:03crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Remove the four Phillips mounting screws from the heater assembly.

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  4. How to Realign the Motor in a Space Heater: crwdns2935265:04crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 How to Realign the Motor in a Space Heater: crwdns2935265:04crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Slide the top control switch panel out. Be careful not to pull, or apply excess pressure to, any of the wires.

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  5. How to Realign the Motor in a Space Heater: crwdns2935265:05crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Using pliers, remove the fan’s center mounting nut.

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  6. How to Realign the Motor in a Space Heater: crwdns2935265:06crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Pull firmly to remove the fan from the motor.

    • Pull from the center of the fan. Do not pull on the fan blades.

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  7. How to Realign the Motor in a Space Heater: crwdns2935265:07crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 How to Realign the Motor in a Space Heater: crwdns2935265:07crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Slightly loosen both of the motor retainer screws about one full rotation.

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  9. How to Realign the Motor in a Space Heater: crwdns2935265:08crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Push down on the motor bracket and adjust the motor by hand so it spins freely and does not scrape.

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  10. How to Realign the Motor in a Space Heater: crwdns2935265:09crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Turn the thermostat selector fully clockwise, and the heater selector to “Fan.”

    • Make sure that the heater selector is clearly turned to the "Fan" setting. Any other setting could cause burns, fire, or electric shock.

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  11. How to Realign the Motor in a Space Heater: crwdns2935265:010crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 How to Realign the Motor in a Space Heater: crwdns2935265:010crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 How to Realign the Motor in a Space Heater: crwdns2935265:010crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Make sure the safety switch on the bottom of the heater is not being pressed. Wear the leather gloves, and plug in the heater.

    • The safety switch's normal function is to turn off the heater automatically if it tips over. Here, however, we can use it as a button to test the fan.

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  12. How to Realign the Motor in a Space Heater: crwdns2935265:011crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 How to Realign the Motor in a Space Heater: crwdns2935265:011crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Press the safety switch briefly to confirm that the motor can spin. Slightly tighten the screws and adjust the motor's alignment by hand until it can spin freely. A light rattling or noise is fine and will be fixed later.

    • Keep your fingers clear of the motor while it is spinning.

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  13. How to Realign the Motor in a Space Heater: crwdns2935265:012crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Stand the heater case up, so the safety switch is pressed, and the motor is on.

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  14. How to Realign the Motor in a Space Heater: crwdns2935265:013crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 How to Realign the Motor in a Space Heater: crwdns2935265:013crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • While the motor is running, slowly tighten the retainer screws until the motor runs smoothly and quietly.

    • If the screws are too loose, the motor will rattle or screech. If the screws are too tight, the motor cannot turn.

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  15. How to Realign the Motor in a Space Heater: crwdns2935265:014crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Set the case back on its side, so the safety switch is no longer pressed, and the motor turns off.

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  16. How to Realign the Motor in a Space Heater: crwdns2935265:015crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Align the fan to the motor axle, and press firmly to reattach it.

    • Press on the center of the fan only. Do not push on the fan blades.

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  17. How to Realign the Motor in a Space Heater: crwdns2935265:016crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Briefly press the bottom safety switch to verify that the fan runs smoothly and quietly. If it does not, return to step 6.

    • Make sure your hands and other objects are clear of the fan

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  18. How to Realign the Motor in a Space Heater: crwdns2935265:017crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Unplug the heater.

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    • Reverse steps one through five to reassemble the heater.

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  20. How to Realign the Motor in a Space Heater: crwdns2935265:019crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Test the heater to verify that everything is working quietly and properly

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Adam Moser

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Colorado Springs, Team 8-2, Mcmichael Spring 2016 crwdns2935289:0Colorado Springs, Team 8-2, Mcmichael Spring 2016crwdne2935289:0

UCCS-MCMICHAEL-S16S8G2

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The shaft on mine still moves in and out. Any suggestions?

Jonathan Williamsburg - crwdns2934203:0crwdne2934203:0

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