u/Difficult_Position66

I never had a Promaster and had no clue what I was in for.

3 weeks later no heat or a/c. I did a lot of reading in a lot of Ram forums they all talked of broken wire, I checked everything and found bad resistor I pick one up at AutoZone part store do to the fact many said that the cheaper ones would not last and a auto parts store was the best place. After I replaced the resistor everything worked great for a day and a half, then nothing again. I tested it and it showed bad resistor os I picked up a new one on warranty, after I replaced it the something nothing. That led me down many rabbit holes.

All tests came back to the resistor my neighbor who is a mechanic found the same thing bad resistor, he said that I may of just got a bad one so I got anther one on warranty.

I installed the new resistor and nothing, Now week of rabbit holes I took It to a mechanic in town I use he spent 2-1/2 days on it on the first day he said bad resistor I was like no away but he went down all the same rabbit holes as me, he was sure it was the resistor he replaced the resistor and nothing. We both made sure to check the connections and resistor was tight.

The last day they found when he moved the cable to the resistor it worked so he replaced the wire. The heat and a/c worked fine for 3/4 the of the day then nothing.

This time I had planed on picking up a switch and relay and run the motor on high only.

I took it to a promaster repair shop and the master tech looked at it and said that it has a bad resistor I just laughed he lesson to me said lets just give it a try Then he said that the OEM one may be better then after markets, I thought about it and remembered many times I found it to be true, After they replaced it again it working for the first time its working over a week'

And it was just the resistor.

-20* Blast freezer

2017 Ram Promaster 1500 I bought this van with only to work on high.

Tyler M# N5FG5A reach-in with doors. I need to replace the heater under the evaporator