Mend > Home Heating Systems

the green light on my pulsacoil boiler has gone off no hot water..any ideas?

Ive got a pulsacoil boiler and the green light on the boiler the control circuit power button has gone off..an... [Read more]

greenstar cdi ?

Hi I have a Greenstar CDI boiler that will not reach over 18 c I've bled the radiators reset the boiler check... [Read more]

seimens wrb6?

When I rest control panel a message comes up 2p16

my seimens rwb6?

The display has a flashing 12am on front.panel won't let me later time or any other thing on it.reset it.took ... [Read more]

Boiler on constant?

I have Glow Worm swift flow 80. I have just installed a new control board but the boiler is now on constantly ... [Read more]

Keston boilers code E02 & E18?

Please tell me what does code E02 & E18 means on Keston boilers

banging sound?

worcester zwb 7/27 combi. It is making a loud banging sound from within the boiler. The whole boiler shakes

siemens rev23.03rf?

Hi we have a Siemens rev23rf transmitter and Rev-r.03/1 receiver. All was working fine until the battery ran ... [Read more]

Why is heating on at night?

Although aour Vaillant boiler is set on timer for mornign and evening the heating comes on through the night a... [Read more]

my wired climapro isnt working properly?

My glowworm combi ultracom 24cxi hot water is working fine. The boiler fires up to full capacity but when the ... [Read more]

feroli optimax fault code a4 ?

could this be flue temp sensor

Siemens RDH10RF not turning on when temperature drops?

I have a Siemens RDH10RF thermostat and the receiver unit is not causing the heating to come on. It will come ... [Read more]

bosch 280 rsf boiler?

We are having problems boiler wont work at all gone by manual and it advises us to get a driver board. This is... [Read more]

How do I release the pressure on my greenstar 25Si/30Si boiler?

The pressure on my boiler is low which means I cannot get hot water. I have read through the instructions and ... [Read more]

Shut down on heating and hot water?

Blue light indicator fast flash. Lockout reset button off. Instruction book says volatile lockout.

rads not getting hot?

rad sign is flashing rads not very hot

my rdh10rf siemans thermostat will not send signal to my boiler. ?

Both the wall unit and the wireless control panel are on and all the lights are on but it is not communicating... [Read more]

Hot front cover?

My Gas boiler a myson Orion 75si is working ok but I am concerned that the metal housing gets hot could it be ... [Read more]

potterton netaheat profile no ignition?

our old potterton boiler has not been used for around two years and was working well then but today there is n... [Read more]

Suprima 50?

When the boiler fires up it throws the main electrics trip? It does it just as the boiler appears to light. ... [Read more]