Hunter Ceiling Fan Remote Control Receiver

[Michael Andrew Iverson]

Hello,

I have a hunter fan with a wireless remote contol (Fan model 25736,
receiver
model CP-9110R) A few days ago, the receiver unit went on to meet its
maker.

A replacement model is US$75, for a fan which cost US$120. Naturally,
the part probably cost about $1.50 to manufacture in quantity.
I managed to get Hunter to ship another unit under warranty, so all
should be fine in 5-7 business days.

Now, my problem:

Given the obscene price for this gizmo, I'd like to repair the broken
one,
in the event that the new one starts "pushing up the daisies" as well.
If
anyone has any experience with these toys, your help would be
appreciated.

Here are the details:

The unit has the following functions:

3 fan speeds, and an off button, a light control, and a reverse button.

The reverse button works fine.

The "medium" and "high" fan speeds work fine.

The "low" speed works, but the fan motor make a horrible buzzing noise.

The fan will not turn off. the "off" button produces an effect similar
to
"low".

Since I don't have a light on this fan, I haven't tested this function
yet,
although I intend to when I find the time.

Thanks,
Mike

[Sam Goldwasser]

In article <31988C...@ee.eng.ohio-state.edu> Michael Andrew Iverson <ive...@ee.eng.ohio-state.edu> writes:

RE: Hunter fan remote reciever.

Given the obscene price for this gizmo, I'd like to repair the broken one,

The unit has the following functions:
3 fan speeds, and an off button, a light control, and a reverse button.
The reverse button works fine.
The "medium" and "high" fan speeds work fine.
The "low" speed works, but the fan motor make a horrible buzzing noise.
The fan will not turn off. the "off" button produces an effect similar to
"low".

Since I don't have a light on this fan, I haven't tested this function
yet, although I intend to when I find the time.

I wouldn't be surprised if the logic itself is fine and it is just
the thyristor or its control that is not producing the proper phase
shift - assuming that this is a modified light dimmer type circuit
(not ideal for an induction motor but much simpler than a true proportional
frequency-voltage control.

If it were mine, I would start by examining the power circuits to determine
if there are any smoked parts or bad connections - both quite likely. You
will probably be dismayed at how simple it really is - your $1.50 estimate
is probably not far off. Chances of obtaining a schematic are probably
next to nil - you will have to reverse engineer it.

Or just depend on Hunter's reputation and assume that you will be able
to convince them to send you another one free next time as well.

--- sam