Dunkirk Boiler Troubleshooting –
Functioning with an older boiler, you might often come across difficulties that seem unusual, or which don’t correspond to anything in the manual. One particular such instance of this is an older boiler that continues operating even when the thermostat is turned down and the programmer is off. This can result in problems with overheating the residence, not to mention the expense of constantly obtaining the boiler running. If you are obtaining that your boiler does not shut off unless you turn off the energy to the home then you might need to contact in a expert boiler engineer, but there are a few factors that you can do to correct the problem before you have to take that step.
Verify the Thermostat
After it becomes clear that your boiler is heating the home when it isn’t needed, you should turn the thermostat down. If the boiler does not respond, then you should remove the thermostat handle from the wall and take off the wiring at the back (right after turning off the principal current). Place the thermostat face down on a counter, and open the back. You may possibly find a blown fuse, loose wires, or other obvious faults that can be repaired. When this is checked, wire the thermostat back into the wall and turn the mains back on. If the boiler is still not shutting down, then you will want to take into account other causes.
Examine the Programmer
The subsequent area to appear is at the programmer. This controls the operation of the boiler, even overriding the thermostat. Turn off the energy again, and take away this from the wall. Check for loose wires, and replace the fuse. You should also verify the relay connection, where the handle is joined to the side of the boiler. This can come loose, or the relay itself can be damaged. You can check the power to the thermostat by wiring it to yet another programmable device, and leaving it to go off. In the meantime, verify the rest of the boiler.
Appear at the Valves
Inside the relay connection, valves allow the flow of gas to and from the boiler. If you are obtaining difficulty turning your boiler off, then the dilemma could be that these valves are stuck in the “on” position. Be cautious about how you release these valves, as they are powerful and can damage your fingers. If, upon examination, the valves appear to be stuck, you need to contact in a skilled to remove the program and repair the dilemma.
Check the Wiring
If none of these answers have solved the dilemma of your boiler consistently running, then you must remove your boiler from the energy provide, and verify all of the wiring. Examine the shut-off temperature controls, particularly the low-temperature switch, which keeps the boiler running if it thinks that the water inside is not getting heated. You ought to also check the temperature of the water. If the two devices don’t match, try removing the handle switch, and then retesting your boiler. Examine all of the wiring, and replace any loose wires or fuses before trying the energy once again.