water hammer

[wishihadntstarted]

I hope one of you kind people out there can help me .

The pipes start to hammer after half an hour of CH or HW or both.
overheat on the boiler then needs to be reset
pump is working
midpoint actuator is moving
engineer changed pcb problem still occuring
its a baxi solo 3 50 pf

help please
thankyou all for your help here is a bit more detail

changed water tank thermostat
actuator changed
have not yet changed boiler thermistor
have not changed room thermostat

I put the boiler on and after half an hour the pump stopped working
the boiler was still going and started to hammer
i then turned off boiler manually
pump did not come on to disperse heat





suggestions please

 

[seco services]

is the pump working properly.
try higher speed.

 

[nogoodatfaultfinding]

I hope one of you kind people out there can help me .

The pipes start to hammer after half an hour of CH or HW or both.
overheat on the boiler then needs to be reset
pump is working
midpoint actuator is moving
engineer changed pcb problem still occuring
its a baxi solo 3 50 pf

help please

So you called out an engineer for water hammer.
Boiler working however pipes making this noise
he changes PCB and charges you for it and you pay?
Get him back to put in your old PCB and refund you then install a shock absorber on your Main Cold Feed.
Has your area had water meters fitted recently?

 

[seco services]

install a shock absorber on your Main Cold Feed.
Has your area had water meters fitted recently?

it's not water hammer he's on about.

 

[nogoodatfaultfinding]

install a shock absorber on your Main Cold Feed.
Has your area had water meters fitted recently?

it's not water hammer he's on about.

Sorry
read title
read pcb put 2 and 2 together and got 5

 

[nogoodatfaultfinding]

install a shock absorber on your Main Cold Feed.
Has your area had water meters fitted recently?

it's not water hammer he's on about.

Still nowt to do with PCB though surely

 

[wishihadntstarted]

is the pump working properly.
try higher speed.

The pump is on highest speed and runs properly as far as i can tell

 

[Andygasman2010]

Sounds like the thermistor is not cutting the burner out when it reaches temperature. If the board is new then i'd try a thermistor, it's cheap and dry pocket too!

 

[seco services]

is the system clean or pushing treacle round.

 

[wishihadntstarted]

install a shock absorber on your Main Cold Feed.
Has your area had water meters fitted recently?

it's not water hammer he's on about.

engineer coming back out and will sort refund

nothing done to system at all apart from day to day use

 

[wishihadntstarted]

Sounds like the thermistor is not cutting the burner out when it reaches temperature. If the board is new then i'd try a thermistor, it's cheap and dry pocket too!

thanks will try tomorrow

 

[wishihadntstarted]

is the system clean or pushing treacle round.

system pretty clean

 

[nogoodatfaultfinding]

Sounds like the thermistor is not cutting the burner out when it reaches temperature. If the board is new then i'd try a thermistor, it's cheap and dry pocket too!

thanks will try tomorrow

Id go for a blockage myself.
Get a good strong magnet and put it round the pipes in the cylinder cupboard if it sticks anywhere thats the problem

 

[wishihadntstarted]

So you called out an engineer for water hammer.
Boiler working however pipes making this noise
he changes PCB and charges you for it and you pay?
Get him back to put in your old PCB and refund you then install a shock absorber on your Main Cold Feed.
Has your area had water meters fitted recently?[/quote]

maincold feed ok
no work carried out on system prior to this
engineer will sort pcb refund

 

[wishihadntstarted]

Sounds like the thermistor is not cutting the burner out when it reaches temperature. If the board is new then i'd try a thermistor, it's cheap and dry pocket too!

thanks will try tomorrow

Id go for a blockage myself.
Get a good strong magnet and put it round the pipes in the cylinder cupboard if it sticks anywhere thats the problem

will try that also
thanks