Hi guys.
I was wondering if anybody could help me.
I've been having lots of problems with my boiler recently. At first it wasn't firing for heating or hot water; I changed central heating valve and also the hot water valve as well, and found the micro switches were faulty. I changed both micro switches. I then found the PCB was playing up, which I then changed. I took out the heat exchanger and cleaned it up and put it back in. It was working perfectly after this for a month.
I then started having problems with the hot water; when the central heating is switched on, the heaters would heat up at a very high temperature and the boiler would switch itself off after a couple of hours - after this is stopped coming on for central heating OR hot water.
We kept on having to reset everytime it cools down and leaving it on hot water mode to get hot water. Everytime we switched on the heating we would lose both hot water and heating.
Also, the water pressure would rise from 1.5 bar to almost 3 bar.
After juggling with it for a couple of weeks like this and having spent nearly £400 on new parts for the boiler, it is refusing to fire at all. I have tried to reset it but the fan doesn't come on - I took the micro switches off the valves and checked if the water pressure was pushing those little knobs out of the valves and they are both working okay. I then tried to put the little pin through micro switches to see if the switches are working okay, and when I press the switch it makes a click, tries to do something, but the fan still doesn't come on. The last thing I checked was to ensure the micro switch was pressed with a screw driver to check to see if the fan is receiving any power - and what I found was there was no power being received by the fan at all.
With the little knowledge I have I feel the fan is being supplied power by the PCB and the micro swiches are working okay, the water pump is working fine - could it be the PCB where the problem lies, again? Because the last PCB was reconditioned.
Also, I have called 3 engineers in the past week and they have advised me to purchase a new boiler, however I am wary of this option as it will cost about £1500 to install a new one. After spending all that money on trying to get this one fixed, I really do not want to buy a new one. I would appreciate it if anybody could help....
PS I have also put a new thermostat in and hot water and central heating sensors.
What else can I do?
I was wondering if anybody could help me.
I've been having lots of problems with my boiler recently. At first it wasn't firing for heating or hot water; I changed central heating valve and also the hot water valve as well, and found the micro switches were faulty. I changed both micro switches. I then found the PCB was playing up, which I then changed. I took out the heat exchanger and cleaned it up and put it back in. It was working perfectly after this for a month.
I then started having problems with the hot water; when the central heating is switched on, the heaters would heat up at a very high temperature and the boiler would switch itself off after a couple of hours - after this is stopped coming on for central heating OR hot water.
We kept on having to reset everytime it cools down and leaving it on hot water mode to get hot water. Everytime we switched on the heating we would lose both hot water and heating.
Also, the water pressure would rise from 1.5 bar to almost 3 bar.
After juggling with it for a couple of weeks like this and having spent nearly £400 on new parts for the boiler, it is refusing to fire at all. I have tried to reset it but the fan doesn't come on - I took the micro switches off the valves and checked if the water pressure was pushing those little knobs out of the valves and they are both working okay. I then tried to put the little pin through micro switches to see if the switches are working okay, and when I press the switch it makes a click, tries to do something, but the fan still doesn't come on. The last thing I checked was to ensure the micro switch was pressed with a screw driver to check to see if the fan is receiving any power - and what I found was there was no power being received by the fan at all.
With the little knowledge I have I feel the fan is being supplied power by the PCB and the micro swiches are working okay, the water pump is working fine - could it be the PCB where the problem lies, again? Because the last PCB was reconditioned.
Also, I have called 3 engineers in the past week and they have advised me to purchase a new boiler, however I am wary of this option as it will cost about £1500 to install a new one. After spending all that money on trying to get this one fixed, I really do not want to buy a new one. I would appreciate it if anybody could help....
PS I have also put a new thermostat in and hot water and central heating sensors.
What else can I do?
