2 weeks ago my boiler would fire up for about 2 mins then cut off. Now it does not fire up at all. during this time I have had two different plumbers round who have changed various parts... PCB board x 2, fan, air pressure switch, water pump and motorised 3 port valve head... luckily I can get these parts at cost but still now getting expensive! What else is left???
The boiler and pilot light is on when calling for heat. Does anyone have any suggestions as to what else could be causing the problem?
Re: Baxi solo 2 30pf will not fire up.. please help!
First off ensure water is getting to boiler, next, No pilot = pressure switch. On my baxi solo 40 pf pressure switch is replaced 8-10 times a year cures your problems,,,,,,,, momentarily , and have had all your other parts,but with no effect to speak of,.......sorry............ solution = [ change boiler ].sounds like gas pressure or lack of water to system or **** boiler like mine .........good luck.
Re: Baxi solo 2 30pf will not fire up.. please help!
Plumbers are great, but they are there to supply the water...
try having a skilled and knowledgeable gas tech come and check your system. Not 100% sure on this model, but is there is a motorized valve you are using it for heating as well, or the option is there... i might be a faulty flow switch or there could be a small bypass is your hot to cold valves,,, meaning not enough flow going though the unit activating the flow switch, this is where the plumber is used....
hard to say with out seeing the unit, but try a gas tech that is what they do not a plumber
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it might be the thermal coupler....it is a piece of wire that goes from the pilot to the thermostat. very inexpensive. .I am a 50 yr old woman, and I changed mine on my furnace twice..Home Depot or equivalent should be able to help. Google "thermal coupler"
When the fan stops working it also stops the boiler. Safety. Check that the fan is turning and blowing air out. You can hear it turning at the top of the boiler and at the vent pipe exit. With the electrics off, remove front cover and test the fan by moving the blades by hand. Any element of stiffness or jerking or if the fan does not turn freely - replace. These have an induction motor - no repair Check the electrical contact wires to fan are ok. If the fan is ok check also the 2 plastic tubes to & from the air pressure unit [usually close to one side of the fan] are intact [no splits or holes and will maintain pressure and vacuum] and fully connected to their metal terminals. Next is to examine the pcb (the electronic board behind the switches) Look for any block connections loose and any obvious signs of black marks on the board. If the latter, replace
you could have a flow problem due to sludge or scale in the boiler, it could be a pump problem as it may not be circulating enough water around the system. or it could be a faulty thermostat if it is not cutting out soon enough.
1st try turning the boiler stat down to its minimum, if it still over heats then it is probably the stat.
if you have a switch on your pump to increase the speed make sure it is on setting 3. if the pump is old then it may be time for a replacement.
hi this problem sounds like a pump problem. now if its not in the airing cupboard, sometimes they can be besides the boiler in a cupboard or under the floor where the boiler is sited, or boxed in in a dummy casing either side of the boiler/fire unit.
i suspectthatthe pump is stuck & needs releasing or worse case scenario a new unit fitted.
The reason you mentioned about frequently getting air in the system is condusive of sludge build up or the pipe-work configuration is not installed correctly giving rise to air being drawn into the system & posing future probs such as component failure.
If the pump is sited under the floor by the boiler it is at risk of collecting sludge as its at the lowest point in the system.
Recommendations re-site the pump if possible & look to have the system power flushed, to assist the life expectancy of the system
the problem there a relay stuck or thermostat bring on the pump & you can lower your high limit aquastat!! also the flow valves can bypass hot hot water risers time to put in a seperate water heater domestic coil are not energy efficient !!!! aquastat high limit set @ 180f deg low limit set @ 140f deg!!!
good luck!!! tim