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Posted on Apr 29, 2010

Thema condens f24e when my boiler is on hot water only raidators

Thema condens f24e when my boiler is on demestic hot water only the radiators get hot

5 Related Answers

kma836

Kiddbrother

  • 7 Answers
  • Posted on Oct 18, 2008

SOURCE: boiler overheating

the problem there a relay stuck or thermostat bring on the pump & you can lower your high limit aquastat!! also the flow valves can bypass hot hot water risers time to put in a seperate water heater domestic coil are not energy efficient !!!! aquastat high limit set @ 180f deg low limit set @ 140f deg!!!
good luck!!! tim

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larry rosen

  • 17 Answers
  • Posted on Nov 27, 2008

SOURCE: COMBI BOILER /CENTRAL HEATING

the boiler should modulate to controll the radiator temperature but the central heating will go off whilst you are drawing hot water

Scott Magill

  • 70 Answers
  • Posted on Jan 23, 2009

SOURCE: Very Hot water coming out of overflow pipe

Is your boiler heating your domestic hot water if so i would turn water off to water maker and see if your boiler pressure stays down below 20 psi. If so water maker is bad. The other thing that could cause this problem would be the boiler pump is out.

Anonymous

  • 462 Answers
  • Posted on Jun 02, 2009

SOURCE: not continuous hot water and radiators

If it has a distance from the boiler to your use the water in the lines and the lines themselves ahve to warm up before you will get hot water, Let me know more if this dosnt help. Please rate me as high as possible if it does help you understand your trouble.

Anonymous

  • 1 Answer
  • Posted on Jan 11, 2010

SOURCE: Problem with hot water from Vokera Excell 80sp boiler

Hi - hope someone can help. I have a VOKERA EXCEL 80SP combi boiler and been without hot water/central heating for two days. The pilot light is on, the fan is on, but boiler not triggering once the hot water tap is turned on.
Hopefully someone come to look at it today but hoping for some advice. Anyone else had this problem?
Thank you.

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Related Questions:

0helpful
1answer

I have an old solid fuel fire with a back boiler behind it...the pump is making a buzzing noise....some radiators hot some not...please help

Tell us more: What is the Solid Fuel?-- Coal?-- Wood? Is this a Steam boiler?- or a Hot water boiler?-- It sounds like Hot water, for you mention a pump-- Perhaps it is a Hot Water Circulation pump?
Does the Boiler have a sight glass?-- What is the water level?
Tell us more, so we can help you figure things out.
Mack B.
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Low pressure Saunier Duval therma condens boiler

May need to replace valves (appear to be corroded and plugged with deposits) and install a water conditioner in the inlet line if you have hard water.
3helpful
2answers

Problem with hot water from Vokera Excell 80sp boiler

Hi - hope someone can help. I have a VOKERA EXCEL 80SP combi boiler and been without hot water/central heating for two days. The pilot light is on, the fan is on, but boiler not triggering once the hot water tap is turned on.
Hopefully someone come to look at it today but hoping for some advice. Anyone else had this problem?
Thank you.
0helpful
1answer

I have a Baxi WM old boiler. Hot water only needed

there should be a switch which toggles between hot water only /// hot water + central heating /// & possible off on
Either on the boiler or on a separate timer control
0helpful
1answer

Bled radiator and now boiler is losing pressure

if your boiler is a combi re-pressurise locate filling loop and refere to manual
0helpful
1answer

Radiator hot even when system is not on;boiler very hot to touch.

Your boiler is on, re-check t-stat. Turn breaker off and rad and boiler will cool.
0helpful
1answer

Heatslave diverter valve

clicking rads are due to pipe expansion when getting hot.
If the hot water [secondary circuit] gets hot and the boiler stays on [does not keep going on and off] even with a constant low water flow then the diverter should be ok.
there is a valve to prevent the primary circuit [central heating] [ CH] from sending water to the rads. this or its control may be at fault.
both the
Both the CH pipes to & from the boiler should have manual valves to turn off. do this then try the hot tap-full on. If the boiler goes into overheat mode and the overheat stat kicks in to turn the boiler off -- then :-
Check also the heat exchanger, it may be furred up especially if you are in a hard water area. It means taking it off and manually checking [pour water through] If you're lucky it will be just muck to be forced out with hose pipe pressure, if not a new one

0helpful
1answer

Very Hot water coming out of overflow pipe

Is your boiler heating your domestic hot water if so i would turn water off to water maker and see if your boiler pressure stays down below 20 psi. If so water maker is bad. The other thing that could cause this problem would be the boiler pump is out.
0helpful
1answer

COMBI BOILER /CENTRAL HEATING

the boiler should modulate to controll the radiator temperature but the central heating will go off whilst you are drawing hot water
0helpful
1answer

Boiler overheating

the problem there a relay stuck or thermostat bring on the pump & you can lower your high limit aquastat!! also the flow valves can bypass hot hot water risers time to put in a seperate water heater domestic coil are not energy efficient !!!! aquastat high limit set @ 180f deg low limit set @ 140f deg!!!
good luck!!! tim
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