I have a Coleman Mach 15K AC unit (#48254C869)on my 2018 Rockwood 2606ws. My Champion 3400 dual fuel will run the AC on econo-mode on propane just fine, but will stall when the AC cycles off then back on. I want to run it on econo if at all possible because it is quieter.I purchased the Supco SPP6 for $10, but later noticed on the Supco website that it is not approved by OEM manufacturers like the SPP6E which is approved. Accordingly I am paranoid about the SPP6. I have also learned that Coleman has a hard start kit for my AC (#8333A9021) for $30. However, it "looks" much smaller than either of the Supco capacitors. I can find no review of the Coleman hard start kit.Does anyone have an opinion on what I should do? Using the Coleman part would not seem to affect my warranty, but is it any good? Or, is this a case of you get what you pay for, i.e., $30 vs $10?

They are just capacitors. Nothing else. Installed correctly, I don't think they can void your warranty. But, that's easy for me to say. It's not my warranty. For only about ten times the Coleman kit price, you can get a MicroAir Easy Start kit (Web Site). It really does a better job at controlling start-up timing and spreading the surge. But, it is pricey. I put one in my trailer. I'm very satisfied.

IMO you're worrying about nothing. I've used the SPP6 on every A/C I've owned including my current Dometic Brisk II but I would now not bother and instead ante up for a Micro-Air Easy Start Soft Starter Kit which will significantly ease A/C compressor start up, regardless of whether the power source is line or genset. I only haven't bothered to date because we use our A/C so infrequently, otherwise the Easy Start would unquestionably be the better solution.

1. Your warranty will not be affected2. NOBODY will notice the Supco add on kit if you have a warranty problem3. OEM's can have RVP install the Hard Start Kit from RVP as original equipment if the OEM desires too. Some OEM's will do that on Towables, because they expect some of their customers will be using NON RV Gensets to run the roof AC. Here is how to tell if the RVP has a OEM hard start kit. You do not have the RVP Hard Start kit. Doug2ND NUMBER AFTER THE LETTER IN MODEL NUMBER TELLS THE TALEIF 5 O6 THEN NO HARD START KITIF 7 -8- OR 9 HAS HARD START KIT

I'm in Florida and travel to New Mexico so AC is issue. If the hard start capacitor relay does not disengage once the compressor starts, due to various possible problems, it can burn out the compressor windings. That is why the SPP6E has an extra safety disconnect feature, and I assume why it is 'approved' by OEM manufacturers, and why the SPP6 is not.The suggested $300 solution seems to not be an easy install after reading the manual, and a real potential for me to screw things up.

Timeking wrote:The suggested $300 solution seems to not be an easy install after reading the manual, and a real potential for me to screw things up.As mentioned I've not yet installed an Easy Start myself but any reports that have been posted here on the forums suggest installation is a no-brainer ... any questions, just call Micro-Air for clarification. JMO, but since it sounds like you're going to be using A/C a lot there's no question the Easy Start would easily prove it's worth in no time at all.

Coleman or Supco hard start kit? | Good Sam Community

24 Replies

Timeking
Explorer
Mar 03, 2018
I'm in Florida and travel to New Mexico so AC is issue.

If the hard start capacitor relay does not disengage once the compressor starts, due to various possible problems, it can burn out the compressor windings. That is why the SPP6E has an extra safety disconnect feature, and I assume why it is 'approved' by OEM manufacturers, and why the SPP6 is not.

The suggested $300 solution seems to not be an easy install after reading the manual, and a real potential for me to screw things up.
dougrainer
Nomad
Mar 03, 2018
1. Your warranty will not be affected
2. NOBODY will notice the Supco add on kit if you have a warranty problem
3. OEM's can have RVP install the Hard Start Kit from RVP as original equipment if the OEM desires too. Some OEM's will do that on Towables, because they expect some of their customers will be using NON RV Gensets to run the roof AC. Here is how to tell if the RVP has a OEM hard start kit. You do not have the RVP Hard Start kit. Doug

2ND NUMBER AFTER THE LETTER IN MODEL NUMBER TELLS THE TALE

IF 5 O6 THEN NO HARD START KIT

IF 7 -8- OR 9 HAS HARD START KIT
SoundGuy
Explorer
Mar 03, 2018
IMO you're worrying about nothing. I've used the SPP6 on every A/C I've owned including my current Dometic Brisk II but I would now not bother and instead ante up for a Micro-Air Easy Start Soft Starter Kit which will significantly ease A/C compressor start up, regardless of whether the power source is line or genset. I only haven't bothered to date because we use our A/C so infrequently, otherwise the Easy Start would unquestionably be the better solution.
RSD559
Explorer
Mar 03, 2018
They are just capacitors. Nothing else. Installed correctly, I don't think they can void your warranty. But, that's easy for me to say. It's not my warranty. For only about ten times the Coleman kit price, you can get a MicroAir Easy Start kit (Web Site). It really does a better job at controlling start-up timing and spreading the surge. But, it is pricey. I put one in my trailer. I'm very satisfied.

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Coleman or Supco hard start kit?

24 Replies

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