Question about Mitsubishi WD-57732 Projection Television

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Error Message When the set comes on it states the TV will shut down in a few seconds because the airflow is blocked. There is no blockage and the lamp door is secure. The TV is 3 1/2 months old. Some direction and advice would be appreciated.

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  • Anonymous Mar 11, 2008

    tv is one week old. error message says fan is blocked & it will shut down. nothing is blocking the lamp or the fan.

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. Set shuts off after displaying the message "TV will shut down in a few seconds. Please check if the air flow is blocked." After shutdown, it may have a yellow status LED, self diagnostics indicates error code 38. To repair, replace the Lamp Thermal Sensor with the new version, part # 299P313010A. The sensor is located on the Lamp Cartridge Housing. See Service Tip VS-72B. Under rare circumstances, when a replacement thermal sensor is not available, refer to the original Service Tip, VS-72 (page 2 and 3 of VS-72B) If error 3-4 then this maybe problem:. Check to see if the lamp is on when the unit is off (in standby) if it is components on the Power PWB... K9A20 and/or K9A21 are shorted. Also, R9A02 may be open. Possible side effects ... deformed lamp exhaust duct and damaged lamp. Replace PWB-POWER part # 934C228003 and if necessary, Lamp part # 915P049010, Lamp Exhaust Duct part # 642B155010, and/or Lamp Exhaust Duct Cover part # 642B156010. See Service Tip VS-73 2. If the lamp never lights suspect the Lamp part # 915P049010

Posted on Aug 22, 2007

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Area around TV is clear, nothing is blocking TV or air flow. When we use the TV we frequently get this message: The TV will shut off in one minute. Check to see if air flow is blocked. Happening more...
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Have a mitsu wd-52631 - get message "tv will shut down in a few seconds - chk for air flow blockage" then shuts down - wil turn on after sit for several hours. No blockage evident.
Well....the reason you are getting an "airflow message" is that there is a thermal sensor on the BACK of the lamp cage, and the connections on it get to be "intermittent" after awhile...and when this happens...the computer thinks that the lamp is overheating due to a dirty filter or fan--and shuts down the set.

It is a small, white plastic sensor, with 2 wires on it, that go to a connector and it has a black and red wire(usually) in a twisted pair that connects to the sensor connector. The connectors need to be REMOVED and the sensor HARD-WIRED (directly connected to) the other pair of wires. IF you have done some electrical work before...this is easy. You only need about 3" of spare wire to patch in between the sensor and the other connector, after you cut the connectors off. BUT...if you do NOT have repair experience...I suggest you call a COMPETENT, FAIR tv shop in your area, if you do not have a service plan...and tell them you have a mits. set that needs the "airflow sensor problem" repaired . this CAN be done -in-home, in about an hour or less, and for under 300, including service call.

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1 Answer

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If the set is only 3 1/2 months old, you should still have warranty coverage. Opening up the unit will void the warranty, so don't open up the set. Call for warranty service. In all probability, the air flow sensor is defective. The message you are seeing is a result of the air flow not being detected or not sufficient. In any case, this is a covered problem and should cost you nothing to fix.

Dan

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Good Day, drdeath57;
Make sure your air vents are clean but more than likely you should suspect the TV's Lamp Thermal Sensor

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i had the same problem on 10/24/07 and i called a Mitsubishi warranty company near me and they came out and replaced the Sensor part # 1299P313010A. No problem since

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