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Boiler on with all HR92 OFF
Posted: Sat Feb 02, 2019 12:52 pm
by Paul
I have seen this on a few occasions, one of the zones will be showing 100% demand on the screen, but if you go to that zone the actual valve position (Parameter 10) is showing 0%, if the valve is re calibrated it sets the screen back to 0% and the boiler goes off, anyone else seen this?
Re: Boiler on with all HR92 OFF
Posted: Mon Feb 04, 2019 5:30 pm
by Richard
Only normally seen this when the TRV (valve body) is faulty or HR92 doesn't have very good signal strength...
Re: Boiler on with all HR92 OFF
Posted: Mon May 06, 2019 8:44 pm
by Badgerbroon
Recently purchased this system and having problem with boiler not shutting off. I've already been round all 5 Hr92s and unlocked them taken them off and then replaced to allow it to calibrate stroke. I am in a situation where the Controller system summary shows all 5 Hr92s at 0% and the BDR91 at 0% yet the damn boiler is still running. I should note that I previously had a zoneless Honeywell programable heating controller and so I have reused the BDR91 but have gone through the 15sec press for factory reset before binding to new controller. Any help would be greatly appreciated.