Powermax 140 combi help - tripping out

[Jonellis12345]

Hi

First post so please go easy! Checked the stickies and have a fair idea what's gone wrong but after some advice and recommendation of a local independent who can help.

So boiler stop lighting around 10 days ago, got a guy out who was very helpful but didn't know the Range Powermax too well. His diagnosis was that the pump wasn't running therefore the thermistor (?) was tripping the system. He checked the power to the pump, reset the trip and turned the pump up to 2.

All good for a week then tripped again. He came back and showed me hoe to reset myself. I should add that we're moving house in two weeks...

However it's gone a couple more times and not comfortable with moving out and leaving this issue for buyers.

Having done some research I think it's either the pump, faulty thermistor or faulty pump relay. Can anyone give me some advice on how much diagnosis and repair would be? Also a recommendation of some local to North Birmingham? Have seen the Heateam fixed service but if it's something simple maybe cheaper to have an I dependant fix?

Thanks

Jon

 

[45yearsagasman]

http://www.powermax-repairs.co.uk/

Have a look at this site, but on no account try to DIY this appliance. It requires expert attention. It is not classed as a combi either.

 

[Jonellis12345]

Thanks, already familiar with that site.

Aware that I need expert help, do you know of anyone in the Midlands.

 

[Jonellis12345]

http://www.powermax-repairs.co.uk/

Have a look at this site, but on no account try to DIY this appliance. It requires expert attention. It is not classed as a combi either.

I think it's this BTW:

10) Relay failure. The Powermax runs a pump while the burners are alight to prevent stratification in the heatstore. If the pump stops running, stratification occurs and the boiler overheat thermostat trips, turning the boiler OFF. A visiting technician will often spot this tripped thermostat and re-set it, then declare the boiler 'fixed'. The problem will return though unless s/he also addresses the reason for the tripping. The pump which ought to be running is operated by a relay on the upper left hand side of the wiring panel. This relay is very prone to failure and will usually be found to have failed whenever the overheat thermostat has tripped. An easy repair but one which foxes many inexperienced technicians.

 

[45yearsagasman]

I think you may have answered your own question.

 

[Jonellis12345]

I think you may have answered your own question.

Thanks, any idea on how much this would cost to fix?

 

[45yearsagasman]

I have no idea of parts cost. The part is shown as available on parts arena.
There aren't many engineers willing to work on these appliances. BG might be an option for a repair, but I guess, and it is only a guess, you're looking at £150+.