Worth a look, might pick up a steal if it's in working order. Feed the solution back into the tank while setting up vaccing,pre spray,agitate -come back to the machine and cold tank water will now be warm-hot , then rinse with the heater inline and you should have steaming hot solution at the wand.
Now Mr muzzy- I appreciate this doesn't have much relevence to your origional post so back on topic lol. That's a lot to go wrong on low hours, how is the after sales tho?
Lew