Question about Heating & Cooling

3 Answers

F20 error on vaillant eco28 combi boiler - Heating & Cooling

Posted by on

3 Answers

  • Level 1:

    An expert who has achieved level 1.

    Governor:

    An expert whose answer got voted for 20 times.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 13 Answers

F20 is a flow sensor error. Can be due to a defective sensor/ not correctly fitted, or you may have poor circulation, a big difference in flow and return temperatures, can sometimes make the boiler think it has a defective sensor, check good circulation through system, or if you have thermostatic radaiators valves on every single radiator, take 1 head off, as if you dont have a bypass fitted, it needs a radiator as a bypass circuit

Posted on Mar 03, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Prodigy:

    An expert who has answered 500 questions.

  • Expert
  • 540 Answers

Checkout the co. website.!

Posted on Aug 30, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Check the internal rubber connection hoses on the flow and return, if they feel crunchy, that's probably your problem.

Posted on Sep 22, 2015

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

If my vaillant eco tech combi boiler intermittently loses pressure does it mean I have a leak in the system somewhere


It could be have you bleed the rads of air . check the pressure relief valve it may be passing water .

Dec 07, 2016 | Heating & Cooling

1 Answer

Hi can anybody help,i have a vaillant combi boiler and i cannot turn the heating off on the radiators can anbody help cheers!


If you they won't go off when your timer is off. There's a possibility it's clock keeping it on although its turned off, which is fairly rare. However depending in which model of Vaillant you have, if your boiler has a hot water pre-heat on it. Some models which have this the diverter was prone for sticking thus leaving the port for the radiators open when in hot water mode.

Oct 03, 2013 | Heating & Cooling

1 Answer

Vcw gb 242e installation manual


english -
http://www.acwilgar.co.uk/Boiler-Manual-PDF/Vaillant/Combi%20compact%20and%20thermocompact%20logical%20fault%20finding.pdf



russian -
http://www.vaillant.ua/stepone2/data/downloads/cd/33/00/IA_VC_182E_VC_242E_Scan.pdf

Nov 11, 2012 | Computers & Internet

1 Answer

Manual for a Vaillant combi boiler, ecoTEC pro28


my eco tec wall mounted boiler cuts out after about 10to15 days this unit was fitted in august this year

Sep 29, 2010 | Heating & Cooling

1 Answer

Vaillant Combi boiler


LOOK ON ONE OF THE COVERS 75% OF ALL CODES ARE ON THE INSIDE OF A COVER FOR SERVICE TECHS, NOT MUCH HELP BUT HOPE IT LEADS YOU DOWN THE RIGHT PATH

Jan 23, 2010 | Heating & Cooling

1 Answer

Girlie - Cannot set combi boiler timer


Being the girl that you are, I'll step forward and ask your need. Can you take a phone cam pic and send it to me so I can see what the rtimer looks like. co7196@yahoo.com

Oct 06, 2009 | Desa International CBN30T Central Heating...

1 Answer

Vaillant combi boiler,dirty water comes out of hot and cold taps ,just been serviced by british gas,could you tell me the problem


Hi ,

Can you please tell me the model of the vaillant, and the approx age?

I can solve this problem

I await your reply

Thanks

Steve :)

Jul 16, 2009 | Water Heaters

1 Answer

Vaillant 831 combi boiler timer help


check to see the time clock is set with the clock symbol. there are three settings on analog clocks I , O and clock the I setting is constant running, the O setting is off and the clock setting is timer.
also try setting the thermostat up higher to see if the boiler fires.

Mar 25, 2009 | Water Heaters

1 Answer

Vaillant combi boiler problem


when the tap is turned on and the water light on the boiler doesn't this means the diverter valve is not operating it could be down to low water pressure in the house this can be checked at the cold tap in the kitchen. if there is plenty of pressure then it could be the diagphram in the diverter valve is worn or split. the diagphram is only a few pounds but it depends on the engineer you get as to how much money he wants to fit it.
the egg timer symbol (or two pyramids together) is an ignition indicator turn off and on again to see if it will fire with the tap running. reset the boiler with the lower right hand control knob.

Dec 31, 2008 | Heating & Cooling

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

Related Topics:

4,237 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

paulcarew

Level 3 Expert

2096 Answers

Dan Webster
Dan Webster

Level 3 Expert

8205 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...