problem with Tekonsha Prodigy - C gone missing on display

Yes,
mine's never had the C and it's never been a problem.
It all works perfectly.

Thanks to all for responses. Dunaruna and Flash, it's helpful to know the missing C is normal. It does seem to work ok on the road but I thought the lack of the C was flagging a (potential) problem. Cheers. Rob.

If the angle is too high or too low a pair of bars will appear in the display.

A disappearing c is normal as long as the dot remains.

Not according to the instruction manual, I can also physically change the angle by a couple of degrees which changes the c. The dot remains and the controller works ok.

n does not and will never appear on it's own.

When plugged into the van .c should be on the display, not n.c

If all is well, there is no delay when when the van is plugged in, .c will display immeadiately, not after 15 seconds.

Sorry Peter, your post is full of errors.

I have reread my post and I can not see where I indicated that "n" appears on its own. Which line does that occur on?

When I have the van plugged into the tug and one of the brake wires has become disconnected then I have a display of (n.c.) on the controller. I only get the display of ( .c.) when the brake wiring is all OK. I have not has an occasion where the wiring has broken and both brakes are not working, If I had I would expect that I would have a display of ( . .) - same as the plug not in.

I have not ever observed the display within 15 seconds of plugging the van in. I have just repeated what is on the card that I read whilst composing reply 7. The card may not be applicable to some models of Prodigy controllers or misleading.

Upon re-reading my post, your followup and the card I see no errors in my posting.

PeterD

This is your post (reply 7). My comments are in brackets {}
I wish I could highlight or bold but don't know how on this site.


At rest the display should show ( . .). {Only If boost is on, one dot if boost is off} When you plug your van in you should see the 15 seconds of flashing (n.c.). {No, should read .c} The display should then show ( .n.) {No, .n. will never appear} for 15 minutes and if there has been no activity (touching brake pedal etc) during that time the controller will go to sleep and the display should go blank. If you then touch the brake pedal the display should light up with ( .n.) {Once again will never show .n.} If there is any other indications or blank display when there should be something showing, then you have a fault.

The fact that you get the first 15 seconds of ( .n.) {?} shows that there is some amount of brake load on the unit. As the first couple of replies suggested thoroughly check the wiring to the unit, especially the battery and earth connections. The positive supply wire should go directly to the battery positive terminal through a thermal self resetting circuit breaker. It should not be attached to the vehicle wiring or have a fuse in circuit.

If you have any problems in the trailer brake circuitry as suggested in the third reply you should get a display indication of (n.c.). If not then the Prodigy is most likely faulty. I have had the (n.c.) display come up the other day and it was a break in the wiring to one of the brakes. If you get that display, climb under you van and tug at each joint or suspect looking wire – if they come apart they were either faulty or about to become so.

When the controller goes to sleep the display blanks completely, it does not display the two dots ( . .) as suggested in reply 6. When you touch the brake pedal the controller should wake up and display ( .n.). {?}

PeterD