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Going to give you a service manual you can look at if both the rooms and slides are not working but the pump is running it sounds like it could be the shuttle valve. Click HERE for some detailed info and troubleshooting, you will need a volt meter. Also click HERE for some info on the shuttle valve. I am pretty sure that is your set up, HWH has many variations so if you start to look at this and it does not appear to be correct please let me know, I am around daily and respond when I can....
Hi...Was just checking in to see if my answer helped?? If you have more questions or concerns please feel free to contact me..