Something is missing from the troubleshooting guide. If the vent hose (the clear one) is crimped in the hole in the counter, you will get a very small trickle out of the hot water dispenser. If so, loosen the nut connecting the faucet to the countertop and pull the hoses through a few times to be sure they are not being squeezed. Then re-tighten the nut.

The product itself is excellent.