Saturday evening, the 6th of December.
Hello, I saw your posting, and I was wondering: could you offer any guidance for repair of the Littermaid Mega (catbox)?
I have been given the task of maintaining this machine (by my wife). Unfortunatly, it appears to have responded badly to my attempts at cleaning. After removing the used litter (Everclean), and washing out the pan/rake area, I reloaded with new litter. After engaging the power supply (it's the original AC variety), the indicator lamp began flashing, at about the rate of slightly more that once per second. Note: no user manual was available to me.
I left the machine, and returned after about 20 minutes (purchase of additional litter). Meanwhile the Rake had moved to the end of the machine with the container. The lamp was no longer flashing. After reseating the power supply (20 minutes, cooling time, not excessivly warm), the rake returned to its starting position. Since that time it/the machine will only move the Rake a short distance {is this a reset?} after applying power. After an additional 2 hour wait time, the Lamp will flash 3-5 times, {rake runs for a few seconds and stops}, and then hold steady{the Lamp}.
Is this related to the possible excess humidity from cleaning?
Thank you, David R. Lewellen leworks AT yahoo DOT com
Quoting from an earlier UseNet posting. ... I designed the electronics for three different self cleaning litter pans representing two different companies. One is on the top of the market, one is only just now emerging onto the market, and the other will be on the market next year. There are no other self cleaning litter pans so its a very safe bet that I know yours intimately. I don't know which pan you have, but here's the scoop...... One uses a Voltage regulator for the entire circuit including the motor drive with plenty of heatsink in case the customer uses a different wall adapter than provided. Increasing the DC power input to this circuit will not change anything. The second draws its motor power directly from the rectified AC input, using an AC wall adapter rather than a DC one, so increasing the power input will make the motor move the rake faster (higher rectified voltage), but with less torque due to "power limiting" designed to guarantee the same power rate to the motor regardless of higher VAC input and a safety threshold that does not permit the motor to work harder than a defined rate to prevent overheating. This was to ensure UL/CSA/VDE compliance. ...