I completely agree Able that it needs to be taken care of but if Doug's so busy he cant go get it looked at then he's gonna have to listen and try something. He told me he has no heat I told him how to get it to heat.
I'm not
sapphire I dont care either way, Able if you have a fuel fired heater and it goes out you have to get it repaired or replaced.
Take the two hoses off the bimba manually pull the shaft out it cant reclose and you'll get smoking water until you can get it fixed,
The shaft is easily moved manually to turn it on or off. I agree the mac valve shouldnt fail but I'm sure its under warranty.
If it is the mac valve Dougs gonna need to take it in to get it replaced. If Doug cant move the heat bypass shaft at all and its stuck the breaker would pop and and bimba would have to be taken apart and cleaned.
alot of these problems stem from the machine not shutting off and water going thru the blower.