If you do some research of your own, you can be knowledgeable enough to either repair it yourself. Or worst case scenario, you can know a little about how the system works so you may know when someone is pulling the wool over your eyes.
BTW the check suspension message can come on for many different reasons, but from what you've described, it sounds like the system is "timing out". When the module(brain) makes the decision to raise or lower, it only gives the system a certain amount of time to fullfill the goal. If it does not do it in enough time, it will turn the message on and shut down the system. The system gives 90 seconds on the raise cycle and 45 seconds for the vent cycle.
Again, if your half way handy, you could probably do this repair yourself and save a ton of cash
Sunday, February 6th, 2011 AT 6:53 PM