Thor Forums

[RonK]

We have a 400D Aqua-Hot in the motorhome and it is working fine with the exception of no heat from the Aqua-Hot. Plenty of hot water. The burner and electric element is working fine.
The Aqua-Hot electronic controller board has been replaced with the same result, no activity on the motorhome side of the board. There is a unit labelled Firefly G5 Controller Module between the Firefly and the Aqua-Hot Electronic Controller Board. I can see the LEDs light up on the G5 controller when heat is requested to the various zones but no lights on the Aqua-Hot controller board or voltage to the heat exchangers in the motorhome. I have searched for any information on this G5 controller to no avail, even looking on FireFly Integration web site revealed nothing.
Any ideas would be appreciated!

RonK