Troubleshooting Roadmaster Invisibrake that Doesn't Build Pressure

Question:

The air pressure is not maxing out it will loose pressure when traveling for long distances like 3 hours. Dealer install it and I have taken it back to them 3 times. My warranty is about to run out and I could use any help form invisible brake.

asked by: Kenneth

Expert Reply:

I spoke with my contact at Roadmaster and he told me that the first place to check is the vacuum line that leads to the engine. If that is kinked it will prevent it from building any pressure.

He did say that if you sit for long enough the pressure will eventually bleed off. So what you could be seeing is normal if the RV is sitting for an extended period of time.

expert reply by: Jameson C