Question about Heating & Cooling

2 Answers

There was no hot water so repressurised as the pressure wass low the red light remained on but occassionally when turn hot tap on the green light comes on there is hot water then it shuts down and red ligth comes back on. it is vokera boiler. can you help as the call out is 175 pounds!

Posted by on

  • rebeccashaw8 Aug 06, 2008

    the so called soloution is something i can not understand nor believe is a viable soloution .the boiler is flahing red not green and has been repressurised and still no hot water but if you put hot water tsp on it fires up for a couple of seconds then cuts out any ideas why before i have to pay a call out fee of 175!

×

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 813 Answers

U need to go with a professnol repairer

Posted on Aug 06, 2008

  • 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.

  • Master
  • 3,037 Answers

These sure were not out for long. The bright red button is a pressure release valve which could be faulty hence allowing water to bypass out of the system and not having hot water. Try strapping a bag around the pipe that goes outside and see if it fills with water. To top up your system look on the pipes just below the boiler. There should be a cold filling loop or a connection for one. If not get one from a plumber and ask them how to fill system up, its straight forward enough and your problem should be fixed with this info

let me know if you have further questions

my best to you

Posted on Aug 05, 2008

  • Benjamin Patri
    Benjamin Patri Aug 06, 2008

    I'm sorry but this is a rare boiler to have. After doing research on this boiler. I found that the following information will fix your problem.

    "This is a common problem, google 'Vokera diaphragm excel' etc to find postings.



    The 96e manual can be downloaded as a pdf from the Vokera website (www.vokera.co.uk ,literature, discontinued products)



    The boiler knows you need hot water when a fulcrum arm is moved when
    you turn on a hot tap, this operates a microswitch. The most likely
    cause of your problem is that the arm is not moving because the
    domestic hot water diaphragm has a hole in it.



    You need the manual, look at page 33 for the exploded diagram of this
    bit of the boiler. Turn off the boiler and disconnect from the
    electricity, turn of the cold water going in. Remove the case. Remove
    the fulcrum arm by unscrewing the slot headed pivot screw. Remove the
    grille below the boiler to improve access (two cross headed screws
    right & left front) remove the five screws (posidrive/spanner) from
    the brass cover over the diaphragm. Remove the shot diaphragm and
    carefully clean off all traces of it left stuck on the plastic pusher
    plate and the brass insides; this is important, if you don't do this
    the replacement will not last long. Fit a new diaphragm and
    re-assemble. If you get drips from where the actuating pin passes
    through the brass cover you need a new 'o'ring holder guide thing. This
    is provided as part of service kit t0019, fitted in a standard Vokera
    service. If this does not fix the problem (it should) then it is
    possible that the microswitch is faulty, replacement is
    straightforward, cut the leads to the old and wire in the new with a
    chocolate block connector or use the crimp connectors supplied with the
    replacement.



    In general you should be careful working on gas appliances, as mistakes
    could leave them in a dangerous state (though diaphragm replacement
    isn't too risky IMO)



    Your boiler has presumably not been properly serviced for a couple of
    years, now might be a good time to get it done, it will prevent other
    common ailments such as hot/cold domestic hot water temperature
    cycling, wild fluctuations in pressure associated with using the
    central heating, and it also gives a general safety check. Phone Vokera
    for a local trained service man. Always use someone familiar with your
    specific boiler, generalists can be costly and slow as they learn the
    quirks of your boiler at your expense."

    Information from www.howtomendit.com


×

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

The heating element continues to heat even after the hot water tap is turned off thus popping the thermal switch. The red light is off on front of unit but you can hear the water heating. Any ideas?


check the pressure control that switches the element on or off
if it is faulty then it switches on when the tap is turned on dropping the pressure but it will not recognize that the increase in pressure when the tap is turned off so it keeps heating the water.

Apr 07, 2015 | Stiebel Eltron TEMPRA 24 Tankless Water...

1 Answer

Boiler pressure saunier duval


Appear to be corroded/plugged inlet valve. De-pressurize system and check inlet valves and line.

May 11, 2013 | Water Heaters

1 Answer

Rheem rte13 standby (green) light not on


You might have crossover problem caused by bad faucet cartridge.
http://waterheatertimer.org/Crossover.html

The green standby light should come on when 240Volt power is applied. Page 6 manual.
Both red lights should come on when tankless is activated. Page 6 manual

RTE 13 requires 60 amp breaker and 6 gauge wire
http://waterheatertimer.org/How-to-wire-Tankless-electric-water-heater.html
http://waterheatertimer.org/pdf/Rheem-TanklessElectricUC_AP15447.pdf

Factory temperature setting is usually default 120 degrees.
Adjust temps page 11 manual
Thermostat calibration is always approximate.
120 degrees is not hot enough to burn the skin.
Exceptionally cold incoming water temperature can cause tankless not to heat enough hot water: install tempering tank to preheat water to room temperature.
Tankless cannot be exposed to more than 11 grains hardness in water. Delime tankless yearly, clean water filter monthly, do not install low-flow restrictions or conserve water since the flow rate must remain high for tankless to activate.
Rheem does not post service manuals for their tankless water heaters.
Call Rheem 800 432-8373

Aug 05, 2012 | Rheem Tankless Hot Water Heater...

1 Answer

My triton shower won't turn off and has no hot water


Your supply pressure is too high for the unit, it is too much for the solenoid to shut off, you need to put a pressure limiting valve inline.

Mar 10, 2012 | Home

1 Answer

Our rheem pronto tankless rutg-74xp red light will come home indicating hot water and stay on about 2 minutes and then turns off we have turned off and back on and let water run for 5 minutes and will come...


Before calling service technician, open following link for Rheem troubleshooting resources.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

List of causes MIGHT include one of following:
Bad household circuit breaker that powers electronics, or loose wire inside outlet where tankless plugs in.
Tankless fuses and control board.
Water flow rate too low. Minimum .8 gallon required (depending on model)
Tankless inlet filter clogged.
Household aerators clogged at faucets.
Crossover at single-handled faucet
If installed, there can be crossover at mixing valve.
Faulty household check valve, including check valve on re-circulation system if that system is installed.
Restriction in household water line, such as clog at elbow.
Unequal pressure in household hot and cold lines, caused by restriction in hot line. When single-handled faucet turns on, the cold water pressure is higher so hot does not flow and tankless will not turn on.
Loose wire connection inside tankless.
Unit temperature set too high.
Unit temperature set too low.
Water temperature is very hot coming out of tap, so more cold is added, but that reduces amount of hot water flow, so tankless turns off because flow rate is too low.
On some tankless, if water is preheated by solar or other indirect source, the burner will not activate.
High mineral content in water > delime tankless yearly
Misaligned temperature sensor
Low gas pressure. Wrong type of gas. Undersized gas line.
Too many faucets on at same time.
Faulty tankless water valve. Water valve stuck.
Fluctuating household water pressure, for example MUD and PUD district water pressure problems or water well pressure.
Faulty household pressure reducing/regulating valve if installed.
Faulty household pressure tank, if installed -or- pressure tank needs to be installed.

Apr 24, 2011 | Rheem RTG-74PVN-2 Natural Gas Pronto Whole...

2 Answers

No hot water when heating tempreture reached.flow switch is operating, power at flow switch terminals on pcb (three wires),? but when working hot water runns for ever and heating runs ok too untill the...


I have a triton opal shower.

I turn shower on low pressure and cold water. then no low pressure and piping hot water for a very short time then low pressure and cold water.

I've changed the solenoid and the little black plastic ball.

Help !

Aug 21, 2009 | Water Heaters

1 Answer

Repressurise Potterton Performa 24 boiler


hope this is helpful. On my potterton 24 combi boiler it is the valve that sits the lowest, with a slight indent in the black tap. if you turn this for a short period you will hear a hiss and the pressure will quickly build to the desired pressure, when you can them turn the tap back off.

Jan 07, 2009 | Heating & Cooling

1 Answer

Re pressurise the BAXI DUO TEC COMBI 28 HE A


I represurised mine by the following:
1. unscrew the left hand circular tap all the way
2. slowly unscrew the right hand circular tap untill you hear the water coming through.
3. turn off both taps when pressure is good

Dec 28, 2008 | Kitchen Appliances - Others

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

Related Topics:

325 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

paulcarew

Level 3 Expert

2184 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...