I decided I ought to check/top up the inhibiter in my open vented system last week, so ordered some F1 via Ebay. Delivery wasn't due until next Friday, so I thought Saturday would be a perfect day to do it, with SWMBO on hand to assist. No such luck, it turned up this morning, SWMBO left for work at 11:30, so I thought no problem, I would manage the simple job on my own. Stop tap off, drain a couple of mop bucketfuls out of the system via a handy drain cock close to the back door, pour the inhibitor in and back on. With no earache if anything went slightly not to plan.
Lucky she wasn't in, it went very badly wrong. Ecofit Pure, simply would not respond to the VRC 470f remote unit. 470 sometimes flashing up a heat source (boiler) problem. Boiler frequently showing F73, or F83. I bled the system, rebled it and rebled it again. Heat was getting up to the 3-port when the boiler rebooted and ran for it initialisation test run, each time I reset the boiler. When it didn't go to fault, wacking the 470 upto 30C, the boiler did absolutely nothing, it just sat there grinning at me. I tried several times taking the batteries out of the 470 and back in. It was showing contact with boiler, VR21, and outdoor sensor. Checked the pump was definatly running.
I have been at it almost solidly all afternoon and was beginning to panic - SWMBO is due home from work shortly after 6. I was even beginning to think that maybe something was blocking the flow to the boiler.
I gave it one last shot - in the past few minutes, before doing a full drain down, of bleeding the entire system again, the boiler gave a tremendous gurgle and fired up and kept going.
The water is perfectly clear, I have drained much more out before just to fit a new F&E and a 3-port, refilled and away it went. This time it must have somehow air-locked with the two bucket fulls I drained out - Panic Over!
Lucky she wasn't in, it went very badly wrong. Ecofit Pure, simply would not respond to the VRC 470f remote unit. 470 sometimes flashing up a heat source (boiler) problem. Boiler frequently showing F73, or F83. I bled the system, rebled it and rebled it again. Heat was getting up to the 3-port when the boiler rebooted and ran for it initialisation test run, each time I reset the boiler. When it didn't go to fault, wacking the 470 upto 30C, the boiler did absolutely nothing, it just sat there grinning at me. I tried several times taking the batteries out of the 470 and back in. It was showing contact with boiler, VR21, and outdoor sensor. Checked the pump was definatly running.
I have been at it almost solidly all afternoon and was beginning to panic - SWMBO is due home from work shortly after 6. I was even beginning to think that maybe something was blocking the flow to the boiler.
I gave it one last shot - in the past few minutes, before doing a full drain down, of bleeding the entire system again, the boiler gave a tremendous gurgle and fired up and kept going.
The water is perfectly clear, I have drained much more out before just to fit a new F&E and a 3-port, refilled and away it went. This time it must have somehow air-locked with the two bucket fulls I drained out - Panic Over!
