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Mend Optima Home Heating Systems

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Worcester 30 Cadillac combi boiler won’t fire up and the EA?

my worcester 30 cdi combi combi boiler wont fire up and ''ea'' keeps flashing? my worcester 30 cdi combi bo... [Read more]
Mend Heating, Home Heating Systems
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Greenstar 24Ri boiler, fast flashing - can I reset?

Greenstar 24Ri boiler won't light and the blue light is fast flashing. From the manual I can see that the iss... [Read more]
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Oil fired boiler thermostat?

I have a Velaire 110/135 oil fired domestic boiler. I think the boiler thermostat may be faulty. The manual sa... [Read more]
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Mend Optima 901

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We have 38 questions about mending 'optima 901' in category Heating, Home Heating Systems

How to mend Optima 901

Pages 21
Mend central heating water works

optima 901 C/H not igniting?

My optima central heating is not igniting, the hot water side of it works fine, when I turn the thermostat on ... [Read more]
Mend water pressure drain
2

How do I stop water from flowing outside from my ferroli optima 901 boiler?

Pressure bar is constantly at 3. If I drain radiators, pressure reduces but then creeps back up again. I have ... [Read more]
Mend problem hot runs
1

ferroli optima 901 c/heating problem?

heating will not come on but hot water ok. pump runs. boiler fires up when stone cold for c/h eventually but w... [Read more]
Mend 901 optima running

ferrioli 901 optima boiler?

boiler when running keeps pressure spot on,when boiler shuts off the pressure slowly drops off and needs to re... [Read more]
Mend hot water replace
1

The hot water sensor on ferroli Optima 901 keeps needing to be replaced?

I have had to replace the hot water and also heating sensor on our Ferroli Optima 901 combi boiler several tim... [Read more]
Mend optima 901 ideas
1

I have a ferroli optima 901 which keeps loosing presure?

It keeps loosing presure through the prv , I have renewed the prv and still loosing presure any ideas please
Mend boiler 901 heating

how can i fix my boiler?

i have a ferroli optima 901 boiler i changed the pressure vessel as my heating engineer said that was the prob... [Read more]
Mend ferroli optima 901

How do you fit a Ferroli optima 901 clock/timer ?

How do you fit a Ferroli optima 901 clock/timer
Mend p c b unit

p c b unit?

wiring instructions for ferroli optima 701-901 pcb unit
Mend hot heating years
1

Hot water?

I have a Ferroli Optima 901 and I am only getting hot water when my heating is on the unit is ten years old
Mend valve ferroli optima

fitting new prv valve ferroli 901?

i have a ferroli 901 optima com boiler and i need to change the prv valve ,ihave purchased a new valve can you... [Read more]
Mend hot taps radiators

How can I fix my Ferroli Optima 901 ??

The water pressure is on 1. I am still getting hot water although it comes out of the taps brown but the radia... [Read more]
Mend timer combi boiler help

how to set the timer?

I have lost the timer instuctions for my Ferroli optima 901 combi boiler can you help please steve
Mend Heating, Home Heating Systems

optima 901 how can I get a users manual not installation manual?

Optima 901, looking for a users manual not the installation manual.
Mend moved hot water
1

ferroli optima dhw is lukewarm?

Hi I have a Ferroli Optima (not sure of the model as this was here when i moved in). Recentley I have noticed ... [Read more]
Mend flame going days

How can I fix my ferroli optima 901?

My bolier flame keeps going out. It will stay on for a while and then after 1/2/3 days it goes out. We had s... [Read more]
Mend ferroli central boiler

How can I fix my Ferroli Optima 901 Central Heating Boiler?

I have a Ferroli Optima 901 C/H boiler and Scottish Hydro have diagnosed a leak from the 'isolation valve'. ... [Read more]
Mend ferroli optima boiler
1

FERROLI OPTIMA BOILER?

I have a ferroli optima 901 boiler which i am experiencing problems with. I have recently changed a radiator a... [Read more]
Pages 21

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Central Heating Water WorksWater Pressure DrainProblem Hot Runs901 Optima RunningHot Water ReplaceOptima 901 IdeasBoiler 901 HeatingFerroli Optima 901P C B UnitHot Heating YearsValve Ferroli OptimaHot Taps RadiatorsTimer Combi Boiler HelpMoved Hot WaterFlame Going DaysFerroli Central BoilerFerroli Optima Boiler
Mend optima diverter valve

Optima 701 Diverter Valve?
Mend boiler wall gas

Optima boiler?
Mend diverter valve air

Optima 701 Diverter?
Mend Heating, Home Heating Systems

optima 701 pressure rises when heatings on drops when off?
Mend fire boiler flame lit

Optima failing to fire up?
Mend boiler turns off

boiler turns off and on?
Mend turning combi boiler

Why does the Hawk II Optima keep turning on central heating without request?
Mend hot gas combi

No Hot Water OPTIMA 701 gas combi boiler?
Mend time optima mains

time clock failure?

How to mend ...

Mend Baxi Mend Bosch Mend Boulter Mend Britony Mend Dimplex Mend Drayton Mend Ferroli Mend Halstead Mend Heatline Mend Kohlangaz Mend Myson Mend Potterton Mend Remeha Mend Siemens Mend Switchmaster Mend Vaillant Mend Vokera Mend Worcester

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