Question about Honeywell Programmable Thermostat Heater

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Festa 1.1 heater not working replasted the control valve under the bonnet still not working seems to be not bad water pressur thank you

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Replast water pump working well now thanks

Posted on Jan 05, 2009


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Rheem 71 30d

You should be able to control hot water temperature by adjusting the thermostats. Either or both may have failed, causing heating to increase to the maximum. The "spitting" is caused by boiling water. Likewise, the pressure relief valve is operating as it should resulting in the overflow you observe. You need to get your heater serviced immediately!!

Oct 10, 2013 | Rheem Tankless Hot Water Heater...

1 Answer

Rheem hot water heater not kicking flame to high heat

1) Copy following link to troubleshoot by type of gas control valve:

2) Bad gas control valve, low gas pressure, dirty combustion parts, inadequate venting, clogged flame arrestor screen located under burner

Mar 06, 2013 | Rheem Water Heaters

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Burner is not kicking in high flame

Hello William
1) Copy following link to troubleshoot by type of gas control valve:

2) Bad gas control valve, low gas pressure, dirty combustion parts, inadequate venting, clogged flame arrestor screen located under burner

3) Add a comment Feb 2013 and say what you discover

Mar 06, 2013 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

Water boiling out of the pressure relief valve

1) Copy following links for troubleshoot resources:

2) Problem indicates bad gas control valve thermostat.
The dial located on gas control, is part of the thermostat on gas water heater. Copper probe protrudes into water heater, and this probe contains the ECO energy cut off and thermostat. Thermostats get out of calibration, or they fail. Replacement should be done by experienced person, otherwise it is relatively simple using pdf link above.

Feb 17, 2013 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

Does the vent motor come on when you turn on a powervent hot water heater

`1) Copy following link to troubleshoot by type of gas control valve, blower motor links, pressure switch testing, and other professional resources:

2) Power-vent blower motor can go bad.
Plug motor directly into outlet, or turn on-off switch on, and see if motor works.
Check outlet for correct polarity, and for at least 80% of rated voltage.
Check vacuum switch. Blower creates vacuum, and the vacuum switch detect vacuum, and signals gas control valve that burner sequence can continue.
Gas control valve can also go bad. Wiring etc can go bad.

Feb 04, 2013 | Rheem 50 Gallon FVR NATGAS Water Heater...

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If you have overheating, the elements are working fine and are not suspect.
Also electric power and circuit breaker are eliminated.
ECO reset is not tripped, so that points to faulty TP vlave, but water temperature has to reach 180 degrees F for ECO to trip.
Open link to see ECO located on upper thermostat.

Remaining suspects are 1) bad thermostat or 2) faulty TP valve or 3) Stacking or 4) combination of the 3.
Raise TP lever and gently let back down and see if something was lodged in the valve.

1) If you are certain that water feels hotter than normal, then replace both thermostats:

2) If water seems normal temperature, then replace TP valve:

3) If TP releases water after frequent water use, then Stacking could be part of problem:

Jul 30, 2011 | RHEEM 40 GAL ELEC Water Heater 6YR SC...

1 Answer

Water gets to hot even when turned down all the way thus opening pressure release valve

I can get you started but might need more information.
Do you have tank-type electric or gas water heater?
Or indirect heater, or boiler, or tankless, or condensing, or under-counter?

If you have ordinary tank-type electric water heater, the thermostat is probably bad.
Replace thermostat(s)

If you have ordinary tank-type gas water heater, then thermostat can be bad, and thermostat is located on the gas control valve

Add a comment for more help.

Upvote the help.
And take advantage of fixya expert assistance live.
For a price, expert works with you while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.


2 Answers

Engine temp normal,fan works, blows cold. tem set to max

under bonnet drivers side back of cylinder head is a electrical operated tap for the hot water going into the heater ,look here first ,then get back to me if you need anymore info as er indoors want the internet and iam being scorned to say the least sorry

Feb 06, 2011 | Jaguar XJR Cars & Trucks

2 Answers

My heater in my Ford KA 1999 has stopped blowing hot air and now only blows cold air. A friend has suggested it might be a fuse, just wondering if anyone knows where the fuse box is or any other...

Fuse box is behind a panel under the dashboard on the steering wheel side. Heater solenoid is #12 I believe.
A cold heater is most likely a bad solenoid valve. This pulses off and on to give the required water flow into the heater matrix. It seems a common fault that this solenoid fails or the valve itself gets blocked. Ford parts are expensive (£50?) and scrap yards don't seem to have them. A competent DIY'er can do the job in about an hour if they have the replacement part. Requires taking off the cover between bonnet and windscreen and grovelling down behind the bulkhead (apparently). I know all this 'cos I need to do the same - my daughter's Ka has the same problem!

Dec 28, 2009 | Ford Escape Cars & Trucks

1 Answer

Heater on festa

you can pinch off the heater supply hose (hose diameter about 1 inch [25mm]) to heater core...look under hood near firewall...special pliers are actually made for this, but you can improvise with 2 pieces of plywood and a pair of vice grip pliers

also, you can close the heater control should be near these hoses...

don't forget...rate me solved.

Jun 27, 2008 | Ford F Cars & Trucks

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