If you're sure its the capping station that's clogged you can heat up some distilled water and soap so its warm / hot, pull that through the capping station manually or use the pump system if the HM1 has it. Use an Eye Dropper or syringe to keep adding fluid to pull it through while it's nice and warm.
After you run a bit of warm soapy water through you can run straight ammonia through the capping station to help clear things up.
After you run a bit of warm soapy water through you can run straight ammonia through the capping station to help clear things up.