Won't stay lit

check gas pressure if ok check orfices for spider webs

Sounds like the button is bad. Try replacing it

i have the exact same heater with the exact same problem. tested the thermocouple seems to be fine, tested the relay, it seems to be fine, could it be the gas valve????

Problem with the thermocoupler its not producing a minivolt of 250 plus that is needed to open the main gas valve

http://www.laarsman.co.uk

Miles

Problem with the thermocoupler its not producing a minivolt of 250 plus that is needed to open the main gas valve

http://www.laarsman.co.uk

Miles

it is most likely the thermocouple needs replacement

http://www.cart32hosting.com/estore/template/thumbnails.php?id=010780&cid=39

It sounds like a thermocouple has gone bad. this is a very common problem with gas powered things ie; water heaters, furnaces, hot tubs. The telltale sign is when you release the pilot light button it won't stay lit. This is a safety feature and is relatively inexpensive and easy to repair.

sounds like dirty flame sensor,clean with fine emory cloth