I have a Hormann powered up and over double garage door - single section - that has worked for years and years with no issues. Now it stalls just on opening - the door moves a couple of cm then stops. Pressing the remote button again and it closes as it should. If you encourage the door to open...
Looks like that was the issue: the motor had seized with the microswitch closed so the pump was continually running. I've replaced the motor and now it's behaving as it should: water temperature is now consistent with the thermostat setting. Thank you for the input!
OK - I have taken the Honeywell valve off and found that microswitch was rammed closed and the motor was stuck. I took the motor out and found it to be sticky so have ordered another motor. That's certainly one fault found. Hopefully it's the only one.
I have a megaflo driven by an oil boiler, and there are several problems, maybe related. These are the symptoms:
a) the central heating is off, Danfoss zone valves upstairs and downstairs are closed, as expected.
b) the pump continues to run. This is such a common problem with my system that I...
I'm not thinking of any particular resin: just something that flowes and will make a good seal. The galvanising had already failed before I sanded it. The rust is being caused by condensation I am pretty sure.
I have a rusty metal plaster angle bead in my bathroom on the window frame. I have rubbed the paint off, sanded the beading to bare metal and applied rust kill products, oil-based primer but the rust returns. Most recently I tried Jenolite DirecttoRust spray paint in loads of layers but the rust...