How to mend ... Dhw Hot Cold

Boiler stays Lit but look warm?

I have a modena 102 combi and have just put in new heat sensors for for the CH and DHW as the flame kept going... [Read more]

Ravenheat RSF 100ET dhw ?

domestic hot water goes hot then cold, central heating works ok, 3 way valve appears to be working ok. where w... [Read more]

baxi 80e hot water going cold?

hi this baxi 80e the hot water runs then after few mins of running it runs cold the temp light on from cont... [Read more]

DHW on RSF82E?

My hot water will only work when switched to both CH/DHW but is starting off hot then goes cold constantly, ca... [Read more]

BIASI Combi produces heating but no hot water?

I am at my mums and for weeks it would appear she has been living with this problem. The BIASI Combi runs the ... [Read more]

Why is my water still to hot?

Previous Q & A :- I have a recently installed worcester 24i (LPG). The tap water gets very hot and after a wh... [Read more]

Combi Gas Boiler?

My boiler is turned up to maximum on both domestic hot water and radiator temperature. The DHW is warm to medi... [Read more]

Glow-worm Cxi 38?

I have a 4 to 5 year old cxi 38 which has been working fine, how ever now the water only heats up to a Luke wa... [Read more]

Intermittent hot water problem?

I have a Vokera Maxin 28e combi boiler and it has started only providing intermittent hot water. This makes i... [Read more]

dhw heating fault?

I have a heatline Vizo 24 but have problems with the domestic hot water running hot & cold.

Valiant vuw 242/1e dhw fault #2?

I have similar boiler with similar fault. During summer when mains water is warmer, shower taps are mixed more... [Read more]

hot water is getting cold ideal c28?

my ideal c28 mini combi hot water seams to be getting colder dhw heat exchange is clear

Hot water cutting out after 20 - 30 secs, but coming back on 20 secs after?

We have a Baxi Combi 80e boiler which fires up okay, but after about 20-30 secs the hot water goes cold. This... [Read more]

DHW clicking on and off when in use?

Hope someone can assist......have a slight fault whereby when the DHW is being drawn, but not full (ie.shower)... [Read more]

water running hot and cold?

dhw tends to run hot then warm on sink taps , but warm and cool on bath taps worchest bosch combi boiler

you may need to do drawings before you answer this one ?

This one will put you to the test…….. I have came across an situation in a pub/restaurant where I have a ... [Read more]

ideal isar he 24?

ideal isar he 24 dhw open tap to draw hot water the boiler fires up and pump is running fine, it can take 20... [Read more]

Problem with Ravenheat RSF 820/20 combi boiler?

I have just drained the hot & cold water from the system, when re-filled the central heating works fine, but t... [Read more]

while running hot water boiler runs hot & cold for the duration tap is on?

tested gas supply 21 mb flow rate 12 ltr removed heat exchanger dhw clear changed both ch &dhw sensors checked... [Read more]

DHW?

I have a vaillant turbomax the central heating workes ok but when I call for hot water the burner goes on the ... [Read more]