Recent: No lights and water in bottom of machine?

Mend Prima F 40 Home Heating Systems

Mend Heating, Home Heating Systems
Find out how to mend it for free.
Ask Question
Mend Heating, Home Heating Systems
Mend repair fix Prima F 40 home heating systems

Mend Home Heating Systems

Mend radiator thermostatic stuck
1

One radiator in a bedroom is always cold?

One radiator in a bedroom is always cold. It used to work fine. I have tested the thermostatic value and the... [Read more]
Mend sabre pressure water

Sabre 29 water pressure drop?

sabre 29 water pressure dropped, how to increase the pressure
Mend boiler greenstar cdi heating

Worcester Greenstar CDi boiler won't fire up the central-h?

flashing green light near the CH select button new batteries in transmitter
Mend Heating, Home Heating Systems
1

How do i stop the time from flashing on the Siemens RDJ100RF?

How do i stop the time from flashing on the Siemens RDJ100RF unit
Mend Heating, Home Heating Systems

Flamerite Isis Fire?

i need a new mother board for my flamerite isis fire do you know where i can purchase one
Mend Home Heating Systems

Mend > Home Heating Systems

Mend Prima F 40 Boiler Thermostat Control Panel

heating will only come on if the ext water option is selected?

the heating will only come on when i select the ext option form the control panel,when the ext for the hotwater is off and i try to put the heating on i can hear the thermostat click but thats it,the boiler will not fire up, there seems to be no activity coming form the boiler,, can anyone help please ???
the boiler is a old prima f 40,
regards
chris

c high
March 2008
PrimaPrima F 40Heating, Home Heating SystemsBoiler Thermostat Control Panel
It sounds like you have a valve problem in your airing cupboard, if you have 2 zone valves then the ch one is not switching, if you have a 3 way valve, then it looks like the microswitch on this is not operating, either way it seems as though the valve is opening so you will most likely only need to replace the operator (actuator)

gary.wright53@googlemail.com
March 2008

Automatic Answer

We may have found other answers which could help you.

Click here for Boiler Thermostat Control Panel
Mend Worcester Combi Ignition

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

Remove boiler cover?
Mend radiator thermostatic stuck

One radiator in a bedroom is always cold?
Mend boiler thermostat replacement

Oil fired boiler thermostat?
Mend Heating, Home Heating Systems

How to fix my fireplace?
Mend Heating, Home Heating Systems

How do i stop the time from flashing on the Siemens RDJ100RF?
Mend vaillant ecotec boiler

Vaillant ecotec 831 plus?
Mend thermostat heating siemens

Siemens RDJ10RF thermostat problem?
Mend boiler heating lockout

Greenstar 24Ri boiler, fast flashing - can I reset?
Mend heating boiler Worcester Bosch

Boiler cycle?
Mend Heating, Home Heating Systems

Remove cover off gas boiler?
Mend heating radiators boiler

Worcester boiler dripping water?

Other models...

Prima F

How to mend ...

Find out how to mend just about anything howtomendit.com for free repair help, information and advice.
Mend Home Heating Systems ...

Related Categories

Mend Convector Heaters
Convector Heaters
Mend Fan Heaters
Fan Heaters
Mend Oil Filled Radiators
Oil Filled Radiators

Mend Heating, Home Heating Systems
Mend repair fix Prima F 40 home heating systems