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Ruho · 04-27-2016, 03:44 PM

I own a 2013 diesel thor siesta. 2011 Honda CR-V toad. Had brake master 9060 installed at camping world in spring 2013. Worked great for next 180000 miles. Then compressor quit. Got it running again after I checked relay contacts near compressor. But now.....Air compressor runs constantly under motor home; ABS, BAS, ASR, ESP warning lights come on at sprinter instrument panel, cruise control stoped working, air cylinder in tow car applies brake and holds, red diode tow car breaking indicator stays on. Disconnect compressor and warning lights disappear and cruise works. Not sure what to do next. This sound familiar?

walt2137 · 04-28-2016, 03:38 AM

Russell start with the installation book and check Camping Worlds installation I personal would not trust their work, I have seen to many complaints. I have the Brakemaster but not the air compressor so not familiar with the air compressor hook up but would think the compressor would get its signal from the brake light can't see why it would be in the circuit of the ABS and other.

Hikerdogs · 04-28-2016, 08:36 AM

I would suspect you have a problem with either the proportioning valve in the brake line or the solenoid that operates it. It's possible that you have a bad ground or there's been a problem with rodents chewing on the wires. If the system worked for over 2 years I doubt it was incorrectly installed.

I'm guessing you meant it's worked for 18,000 miles not 180,000 miles. 180,000 miles in less than 3 years is highly unusual.

Here's a link to the Installation Instructions:

http://roadmasterinc.com/pdf/85-1811-18.pdf

On page 3 there's a wiring diagram for the entire unit including the proportioning valve. Starting on page 28 there is a trouble shooting guide, which includes the constant running of the compressor.

Here's a link to the owners manual:
http://roadmasterinc.com/pdf/85-1991-16.pdf

It shows several photos of all the parts from different angles. Part of the problem is that you may have an open drain valve on the storage tank. Depending on the way it's mounted it may be difficult to see.

YosemiteBobR · 05-01-2016, 07:28 PM

Wow, first off their number is 800-669-9690, I have the same system, but never had any of that. When the dash light is on, your brakes are being applied, I'm sure you know. When the compressor "went" what do you mean, did it blow a fuse, or did you have to replace the compressor. Are you talking about the one mounted under your coach? Also, what are you towing? If your compressor is running constantly, it's leaking somewhere. Your going to have to check all your lines. Disconnect the air line going to the towed vehicle and see if it stops. Are you towing a Jeep? It could also be a diode, have they gotten really wet lately? The diodes that is. If one of the diodes are bad, it would cause current to travel back to the motorhome and activate the brake master solenoid it could leak current back into the towed vehicle. The reason I ask if you are towing a jeep, is the dash lights can come on if this happens, it is why jeeps are suppose to have the battery disconnect installed for that particular reason. I don't, but I always check the operation of the lighting circuits to make sue all is good. Also make sure that the drain valve on the bottom of the air tank is closed also check the drain valve at the bottom of the breakaway reservoir is closed as well. One reason for the break cylinder attached to the brake pedal to not retract would be a kinked air line, so you need to check for this as well. Are your air lines near any "hot" item i.e., exhaust pipes, make sure they are not melted. A bit more complicated task would be making sure dirt didn't enter one of the air ports on the tow and/or towed vehicle to check this you would have to disassemble the quick exhaust valve and make certain it is not jammed.

OK, I just read your not towing a jeep. But, check those diodes anyway for the dash light thing, and your airlines for the running compressor, it really sounds like two separate problems at one time here.

SuperGewl · 05-04-2016, 01:28 AM

Verify your wires are connected correctly at the relay contacts first. Disconnect the Toad from the MH and see if the compressor shuts off. If not then disconnect the output air line from the compressor and see if it shuts off or better yet listen for an air leak and fix it.
But I will bet that electrically something is amiss due to the electrical problems you described.

Ruho · 05-20-2016, 04:27 PM

Quote:

Originally Posted by walt2137

Russell start with the installation book and check Camping Worlds installation I personal would not trust their work, I have seen to many complaints. I have the Brakemaster but not the air compressor so not familiar with the air compressor hook up but would think the compressor would get its signal from the brake light can't see why it would be in the circuit of the ABS and other.

I replaced the proportional valve, all problems solved.

Ruho · 05-20-2016, 04:28 PM

Replaced proportional valve, all problems solved.

Ruho · 05-20-2016, 04:30 PM

Replaced proportional valve, all fixed.

YosemiteBobR · 05-20-2016, 05:24 PM

Glad to hear all is well. I'll put that into my log just in case it ever happens to mine. Thanks for coming back and giving the results, I sure wish everyone did that.