Passport 8500 Radar Detector "self" Questions

...in wich the Whistler is silent during the startup test It is annoying for me to listen that it is self-cheking all bands. I don´t know how I turned on the voice when the Whistler is

Service required Several times I have got a message about Self Calibration and then it works after it calibrates. But this morning, after 3 Self Calibrations, I got the Service Required message. What ...

service required self test failed. service required This message is generated only after a Bel or Escort radar detector has repeatedly encountered problems while trying to self-calibrate its radar ...

...- along with other high-end types that require a microprocessor to analyze signals - performs a self-test when powering up.  This is done for the same reasons a Power On Self Test is done on ...

...during a rain storm. I wondered if it had gotten wet, but it booted up fine. All displays work and self test seems ok, although I've lost the manual. And I seem to get the usual false signals from ...

...this procedure roughly every 10 to 20 minutes during operation. Occasionally you might get a Self Cal error if there is a strong radar source nearby or due to voltage fluctuations during the ...

my whistler 1750 radar detector sound is getting hard to understand. it could be a bad speaker. You can change it your self. Call 800-531-0004 and one of Whistler's reps will help you.

says service required when turn on "Service required" means that the detector failed the self test when it was powered on. I would call Escort at (800) 964-3138 and see if they are able to repair it.

comes up service required. fault code cal7. ka band not functioning. any solution? CAL7 is a broad self-test failure code. It will have to be sent to Escort for diagnostics on the specific problem ...

no sound Have you tried turning up the volume control? If the volume is turned up, does the unit make sound during its self test. If so, check the units quiet mode options, one of them could be on.