having trouble with motor. it operates going down but not up. How can I test whether its the motor or other problems. any suggestions?

Hi cmaker, welcome to the forum. Just so you'll know, the lift motor does NOT run during lowering. You simply open a valve to lower the top. The lift motor DOES run to raise the top however, it has to pump hydraulic fluid out of the reservoir to do this.

So, from your post, I'm guessing you are not hearing the motor run when you press the lift switch to up? Since it lowers, it would appear you have the Master switch in the correct position during these attempts. Do you hear a "click" when you push the Lift switch to the "up" position? If not, you possibly have a bad solenoid, or, it is not getting power. In the case of no "click", check for 12V power at the solenoid terminals when the Lift switch is activated using a multimeter. This is a 2-person job.

If the solenoid is getting power, it may be frozen. Replace it. If it's not getting power, you need to trace the wiring to find the fault. It could be nothing more than a bad ground.

Hope these thoughts help.

- Jack

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Hi-Lo 1707T - Tire Minder TPMS on Tow Vehicle and Trailer, 300W Solar Battery Charger, Equal-i-zer WDH, Progressive Dynamics Converter, Fan-Tastic Fan, LiFePO4 battery 12V DC Electrical System
2014 F150 Platinum 4x4 3.5L EcoBoost SCrew

Hello Mr. Jack,

In think I am having the same issue. At times the top will not go up. I have purchased a new marine battery but at times I still have to jump it from the truck. seems like when I push the up it does nothing. then after several tries it starts going up. I thought maybe I have a bad switch since it is the original. but I will google and look for a solenoid.