How to mend ... Runs Hot Cold

Fault on Ariston micro Genus HE combi boiler ?

radiator side of system ok, but it is not producing hot water from the taps. System seems to briefly try to f... [Read more]

hot water running hot then cold then hot again?

combi boiler water runs hot then cold then hot again

Shower not working properly on baxi with calor gas?

I have a combi baxi which is run on calor gas. The central heating seems to work fine but the shower is now no... [Read more]

vaillant cant see model number?

central heating working fine but hot water runs cold after a short while.

Worcester Bosch 400BF Hot Water Cutting Out?

Hi I have a problem when running hot water it is hot for a while then runs cold then back to hot the CH light ... [Read more]

vaillent 824 6 radiator system?

first five radiators work ok, 6th radiator only gets half hot which runs from the fifth radiator on 15mm pipe... [Read more]

Potterton Performa 30 HE Central Heating Sensor?

Hi all, I'm experiencing some intermittent problems with my Potterton Perform 30 HE. If anyone could advise... [Read more]

Ferroli HE 31 C no hot water?

Heating works fine but i cant get any hot water just runs cold, any ideas. Thanks Toll

Ariston Mircrogenus HE 32 MFFI - Hot water not getting up to temp?

Hi Guys, I have a HE32 MFFI Boiler, recently the Hot water has not been getting up to temperature. i... [Read more]

my Vokera Linea 24 Combi Boiler hot water runs hot and cold?

when I turn my hot water tap on it runs hot the after a short while goes cold then start running hot again, an... [Read more]

my ariston combi boiler only gives luke warm water and then runs cold?

i have an ariston type c boiler the heating works fine but the hot water comes out luke warm for a short time ... [Read more]

BAXI 105E Instant. System pressurising when on DHW only?

Baxi 105e instant. Diverting valve operating head keeps clicking on and off Pressure guage building up press... [Read more]

hot and cold shower?

i have a cascade shower 3yrs old runs off my combi boiler 2 yrs old , it intermittently runs hot then cold ! c... [Read more]

how can i fix my halstead quattro?

halstead quartto boiler. water runs/cold then off to hot,more cold than hot

Ariston microGenus He 32 mffi?

my boiler shows no water pressure E 02 error code .correct code for no water pressure . fill up system with bu... [Read more]

Vaillant boiler VCW 242/282 EB, Hot water problems?

Hot water is excellent to other DHW taps in the house. Recently changed Kitchen mixer tap (aereated water ).No... [Read more]

water runs hot then cold?

we have just had new gas valve,and harness fitted on our heatline30 combi,by british gas. since then our hot w... [Read more]

alpha 280e ocean boiler problem?

i am losing hot water as i run the tap. the central heating is fine but when i put on the hot water it runs ho... [Read more]

Vokera linea ag plus. Domestic hot water cycling hot and cold?

I have the same problem with taps or showers. Checked again and its not just the showers, hot tap turned on an... [Read more]

Greenstar si combi - Hot then cold?

Hi, my worcester bosch is playing up; the c/h works just fine, but just recently the hot water from the taps r... [Read more]