instal new thermostat?

I want to instal boiler thermostat on myson orion boiler but the old thermostat has 4 terminals and new one has only 3 how do I connect them myson orion fanfare 40si41 795 07

Can anyone help me with my Myson Boiler?

I have a Myson Back Boiler and it is 21 years old, it ignites when I put it on and then gos out, after a while it starts clicking to ignite again but it maybe does it sometimes up to 9 times. The h ... more

Myson marathon 60c?

How do I wire an external programmer to boiler terminal block on Myson Marathon 60c.

how do I change the times on my Myson 40/50 MF?

The time clock is two hours out and i need to reset it.

Myson Economist + Towerchron Programmer approx 1987?

My programmer can only be switched to 'on' or 'off', the timer has stopped working, please can you tell me if it is possible to get a repalcement?

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myson heater replacement resistor?

Further to Tony C's question in 2008 on the same subject did anyone find an answer? I now have the same problem with a 320 ohm reistor that is burnt out. It is part of the fan speed controller circiut

boiler just switches off?

our potterton myson 50 works perfect for an hour or so then just stops as if losing the pilot light or gasflow,no lockout light and nothing happens after reset button is pressed,any ideas??

how to remove top myson rad valve ?

i have a myson radiator valve it is at least 10 years old it has two lugs underneath the top cover that pull out completely and i want to get the cover of to check the pin i need some advice how to re ... more

will not ignite after flames go out?

my myson fanfare 60 will ignite from cold but after flames go out motor will run continous but will not ignite again unless switch off completely and back on. as suggested previously i change motor ... more

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my heating and hot water needs fixing?

Hello,i have a myson orion boiler. we had an extension and the boiler had to be moved a few feet. before this we had hot water,and heating was controlled by the timer. Now i can only get hot water if ... more

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Myson Marathon 80c?

what can cause water surge from the boiler vent pipe that hangs over the boiler header tank?. The filler valve from mains has been checked and that's ok shuts off at 2" below over flow but it appears ... more

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where can I get a timer for a Myson oil heating system 40/60, 60/80 please?

a manual timer for a Myson oil heating system bought in 1990

fan?

is it possiable to replace the fan on a myson apollo fanfare 15/30s by d.i.y

Myson Marathon 80c?

Job done properly no complaints on that just the price for a days work and allowing £100 materials wear and tear of vehicle etc. A friend has done it against advice to ask for a rough price to ... more

fan replaement?

is it possible to change the fan in a myson fanfare 15/30 by d.i.y

Myson Orion 30Si - Fan/Vac Switch cable form?

Seems my previous plumber fitted the last extractor incorrectly which cased the cable form to get scorched and now having ground issues when hot. Looking to replace the damaged cable, (not myself j ... more

Myson Orion won't fire up - please help?

When I switch the heating on, the vent fan comes on and the pilot light ignites and stays on, however, the system continues to click constantly and the main burner does not ignite. It was previous ... more

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myson apollo boiler?

my myson apollo boiler wont stay alight. does anyone no whats wrong

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How can i over-ride the Myson thermostat's PIN number?

I have a Myson thermostatic control in my house and for some reason it is asking me to input a PIN number before it will let me change the temperature? Unfortunately it is locked on high and you gues ... more

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Faulty Myson Apollo Fanfair boiler?

It appears that the fan on the boiler keeps operating every 3 or 4 minutes for approx 30 seconds and then shuts off.This happens when the hot water or radiators are both switched off at the honeywell ... more