Cascade 2 Water Heater Problem

JohnM20
JohnM20 Forum Participant Posts: 1,416
1000 Comments
edited April 2019 in Caravans #1

A friend has an old caravan which has a Cascade 2 water heater. Whilst he can get water to flow through the cold taps in the caravan he can't get anything through the hot system. Anyone got any ideas what may be causing the problem and what the solution is?  I'm afraid I'm not familiar with this heater. Thanks in advance