HWH slide no work

mike brez wrote:
I have a single slide wont go in or out. Air leveling. Pump does no run not even a clicking noise to be heard. I tried the trouble shooting guide that is on line but no luck. I have power from the slide room key. My extend/retract switch has power on the middle two contacts. If I flip the switch while using a test light to ground and touching either the top or bottom contact and press switch the test light will light for a milli second and that's it. I have power at the pump and pressing the switch in either direction cuts that power to pump. I installed a new switch and it does the same thing.

Sounds like you have a bad ignition relay or other safety feature. Find and bypass this relay's contacts with a heavy wire, as it most likely won't allow the required current to pass. In other words, you have voltage present, until you put a load on it and then it's sucked dry, so to speak. Look under the hood and on the firewall for this and for beginners. Pull the relay if it's a plug in type and make up a heavy jumper with female connectors on each end. You probably need to plug this jumper in the socket, where the relay's NC contacts are.
Hope this helps and can only make an educated guess without doing my own troubleshooting. If it works and you can remember how to properly operate your slide, you can now throw the relay away. Either that, or carry a spare on board as these components are obviously prone to failure.