Question about Heating & Cooling

1 Answer

Pump running all of the time

My central heating and hot water system is an ideal classic with 2x 2port danfoss motorised valves and a pump. my hot water pump is running all of the time even when the bolier is not on and thermostats (heating and water) are up to temperature. the only way the pump stops is when i turn off the main power supply for the whole heatingsystem.... can anyone advse what is wrong? thanks

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Heating & Co... Master
  • 2,598 Answers

One of the valve is sticking open calling for heat or hot water , or cylinderstat is calling or pump over run on boiler is not working

Posted on May 30, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My ideal logic combi 30+ is saying ignition lockout and my radiatiors arent heating up as well as my water not turning hot. How can i fix this please?


Lockout is a safety feature. Usually a latching condition and needs to be investigated rather than blindly reset. (The Combi has a bit more intelligence.) With the ignition locked out, you can't hi-fire the boiler, so no hot water of either type. The 'L' should also show a code number - check your user manual (google) for more guidance.

I've had a lockout on a non-combi: it was caused by lack of circulation of central heating water through the boiler.... The system boiled and the trip tripped. The pump WAS running, but wear in a valve actuator resulted in the valve feedback saying valve open while it was physically shut.

Dec 31, 2016 | Water Water Heaters

1 Answer

How to use Central Heating only on an IDEAL W2000 CF50 boiler


you should have a programmer that will let you have the hot water and heating on or off . You could have a motor rised valve on the system which controls both . depends on what system you have . Fully pumped of just pumped on the heating side .

Jun 14, 2017 | Water Heaters

1 Answer

I've just moved and the boiler is an Ideal Classic


it should be a fully pumped system , which pumps heating and the hot water i take you have ahot water tank /cylinder for hot water with a 3 way valve on it , hmm set the boiler thermstat to number 5 put you clock /programer to hotwater only,once aday or twice , its down to how much water you need . see if this helps .

Aug 24, 2011 | Heating & Cooling

1 Answer

On a back boiler central heating system my hot water works fine but cant get my central heating working i have changed the pump there are no motorised valves on the system i have checked the the expansion...


Hi,
In most cases problems with the circulator pump boil down to two problems.
The most common is air in the lines causing an air lock.
The next problem is that the pump gets stuck and is not running even though itmay be hot and seem to be running. In this cause the pump can sometimes betaken apart, cleaned and it will work, but usually it needs to be replaced.

Here is a tip that I wrote that will explain circulator pump problems in moredetail.

Heating Circulating Water Pump Problems

heatman101

May 09, 2011 | Water Heaters

1 Answer

My Honeywell ST 6400C won't heat the hot water the light comes on but pump doesn't run or boiler fire. But does work on C/Heating.I can get hot water only by running the C/H and manually opening the hot...


it sounds like the motor in the motorised valve is not working on some models you can just change the head /motor , check cylinderstat (hot water stat) is working

Dec 14, 2010 | Honeywell Heating & Cooling

1 Answer

Have a back boiler. Central heating working fine. Hot water not.


Depends on type of control system but usually you will have a three-way motorised valve somewhere. This is contolled by the tiimer and the thermostat on your cylinder. Look for a box that has one pipe going in to it and two further pipes coming out. I suspect yours is stuck on heating. Some models had a manual lever to put it to just hot water. End of the fday you need to get someone out to fix this one.

Jun 16, 2010 | Heating & Cooling

2 Answers

Ideal classic boiler no heating only hot water when heating is switched to on there is no sound from system but there is when water switched on. the rads upstairs were warming up but not downstairs now...


Hi it sounds like the pump is not working or diverter valve not working check to see if pump is working on ch mode as well as valve , pump could be stuck ,

Apr 12, 2010 | Heating & Cooling

1 Answer

St6400c thermostat wont run the central heating independantly


This does not sound like a thermostat problem. I would be looking for a zone valve or circulator pump problem.

Nov 05, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

Central heating comming on,on it own


check motorised valve if you have one on the heating system

Jun 18, 2009 | Protech Systems FasNSeal FSWMKE4 4" Vent...

1 Answer

Ariston micro genus combi boiler central heating works okay but domestic hotwater fails to rise but burners seem to be lit and the boiler doesnt appear to cycle dhw temp gets to about 30 degrees instead of...


having found a circuit diagram, realised that the divertor valve was electrically operated.i unplugged this then unclipped the motor from the valve body,the diverter valve is spring loaded and once i'd removed the motor the spring raised the valve to divert water through the dhw heat exchanger,giving us hot water but no heating, if i refit the motor the problem comes back heating no dhw.ordered new motorised valve assembly £30 next day order .
this was a simple fix without having to drain the system down.

Dec 07, 2008 | Heating & Cooling

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

211 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

Paul Carew

Level 3 Expert

2598 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...