Changed batteries in remote starter and it will not work.

on remote press the middle button for 15 sec. after three flashes on remote, put key in ignition and turn ignition on but dont start it. press button on antenna, release and then hold until horn honks or led flashes on antenna. lastly press lock within 5 sec

are your brake lights functioning properly? remote starts sometimes use this as a fail safe, or a bent hood pin switch? Also It may need the tach reprogrammed if used. there may be a seperate fuse for the starter.
here is the link to the installation manual: http://www.directeddealers.com/manuals/ig/viper/n4102v_2008_09_web.pdf
and the page regarding this issue: • The remote start will activate, but the starter never engages.
1. Check for voltage on the purple starter wire two seconds after the remote
start becomes active. If there is voltage present, skip to Step 4. If there is
not voltage present, advance to Step 2.
2. Check the 30A fuses.
3. If the gray/black wait-to-start wire is detecting ground upon activation, the
starter will not crank.
4. Make sure the purple starter wire is connected on the starter side of the
optional starter kill/anti-grind relay.
5. Does the vehicle have an immobilizer? Some immobilizer systems will not
allow the vehicle to crank if active.
6. Check connections. The heavy gauge remote start input wires on the
heavy gauge 10-pin connector should have a solid connection. "T-taps"
or "scotch locks" are not recommended for any high current heavy gauge
wiring.
good luck.

It probably needs to be re-programed
I have a viper model 5101 and this is how you program it Hope it helps !

Programming the Viper Remote Starter 5101

Unlock the doors before starting

Push and hold f button for 8-10 seconds until amber light is on solid

Push Remote start button for about 4 seconds till amber light flashes 3 times

Put key in IGN to the on position but don

Here is a copy of your requested guide.
http://www.directeddealers.com/manuals/OG/Viper/G4102V_2008_09_web.pdfsee pages 13 and 31
Please let me know if you have any problems with it.
Thanks
Bruce

go to www.directed.com this is the manufacturer of the viper remote starters, there you should be able to download instructions.

Here is how you program the viper 5101 remote.

Programming the Viper Remote Starter 5101

Unlock the doors before starting

Push and hold f button for 8-10 seconds until amber light is on solid

Push Remote start button for about 4 seconds till amber light flashes 3 times

Put key in IGN to the on position but don

You will need some type of interface module to bypass the transponder in the key inorder for the remote start to turn on the van.

Have you tried this site yet?
Here is a copy of your requested guide.
http://www.directeddealers.com/manuals/OG/Viper/G4102V_2008_09_web.pdfsee pages 13 and 31
Please let me know if you have any problems with it.
Thanks
Bruce

Programming the Viper Remote Starter 5101

Unlock the doors before starting

Push and hold f button for 8-10 seconds until amber light is on solid

Push Remote start button for about 4 seconds till amber light flashes 3 times

Put key in IGN to the on position but don

First off, is it in neutral? It can't engage the starter motor if it's in gear. Secondly, If it was professionally installed, why not just take it back and demand that they fix it?

Your wiring should somewhat match this.

The start/stop 3x thing could be one of a few main issues. You need a bypass module or it needs to be reset. You need to program the tach if you're using it. Make sure with the new models(5101, 5301) it's programmed for auto transmission. The come default for manual transmissions.