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Honeywell s4582d has the big brown resistor labelled as r2 being open circuit, the colour banding is that poor cant make out its value, anyone have any idea?

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  • Water Heaters Master
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If it put out enough heat to fail, and the legs are a larger diameter... it gives clues to the size and watts of the original. You can wildly guess and do a better job than having the water heater not work at all. Perhaps try a 100 ohm if it has trouble working try a 10 ohm

Posted on Oct 22, 2013

Testimonial: "it would appear to be the feed to the fan/blower, the colour coding is utter **** quality on it, but guessing by what the colours may be, its either 16 17 or 18k resistor, so gonna attempt one in the middle lol"

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Judith that information is on the package or information sheet provided .they even provide labels to mark your wires with .

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Color code for theromstat


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How-To-Wire-It.com
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Hi i have a wireless room thermostat i wish to fit to my potterton boiler can anyone advise me thanks


in general-
wireless thermo has 2 units - room thermo and furnace rcvr.
if thermo is battery powered no wires to connect - if not needs 24V connected - then why do they call it wireless?
rcvr connects to same 4 wires as current therm except at the furnace - 24v power and 2 control lines
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but I have found them messed up by "professional" installers so u need to verify before connecting or go by the terminal labeling.

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How can I make a thermostat connection?


Good morning Yakup.

The best way is to write down how the old t-stat was wired. If that's not available, the only way to determine for certain where each wire goes, is to check what the installer did at the terminals in your home comfort system. Please note the there is high voltage electric in each piece of equipment so if you decide to open up panels, there is always the risk of damaging the equipment or worse, injury or death if you are not a qualified service technician. However, typical color assignments are as follows:
R= (24v from heating appliance) Red
RC= (24v from cooling appliance) Red
These two are only separated when you have two different appliances providing seasonal comfort, like a boiler and an air handler. If you have a warm air furnace with an air conditioner or a heat pump attached then R+RC will have a jumper across them and only one RED wire will be landed there
W= (heat) White
Y= (cool) Yellow
G= (fan) Green
Those colors are pretty standard
The rest of the colors depend on availability in the jacket and are really up to the installer. You mentioned 7 wires but 8 conductors is more likely so I'm assuming the remaining colors are black, brown, blue, and orange.
I always use the following:
C= (common) Black
O/B= (reversing valve for a heat pump) Orange if the valve is energized for heat and Blue if the valve is energized for a/c.
Aux/E= (auxiliary or electric heat) Brown
L= I believe this is a diagnostic terminal for some systems with feedback data and is not used frequently.
After wiring there is some programing to do to set up your new thermostat to your type of system.

Hope that helps. God bless and be careful.

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Is the honeywell wv8840B1109 like a smart meter. I was concerned after they installed this on my new water heater. It's basically an alarm for if the pilot shuts off. Seems awfully big to just be for that....


Thanks for photo link. Not a smart meter.
Just ordinary water heater gas control valve, with small circuit board to support error codes:
Copy following link for handy resources:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
http://www.thetankatwaterheaterrescue.com/forums/forum3/
http://waterheatertimer.org/How-to-replace-Honeywell-gas-control-valve.html
How the newer gas control valves are different: Old water heater had thermocouple which supplies very tiny current to gas control valve. When pilot light blows out, the thermocouple no longer sends tiny current and gas control valve shuts off gas to heater.
New gas water heaters have thermopile (just like modern furnaces and stoves), which is basically several thermocouples bunched together. So thermopile sends more current to gas control valve, and supplies enough current to power small circuit board. The circuit board records error events and issues simple error codes. If pilot blows out, then thermopile no longer sends current and gas control valve shuts off gas to heater.
Moreover, the new gas control valve can be repaired and replaced without removing from tank. So tank does not have to be drained... saving time and repair cost.
Gene

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Which water heater??
Look on label on side of product for label that shows brand and type
Add a comment, for response 11-3-12 after 5, or call service plumber.

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com=common= [ L ](live)same, the one that kills you. =red/brown N - neutral=black/blue Earth=green or green&yellow striped old colours= red, black, & green. new colours= brown, blue & green/yellow. L,N E.......... If you are uncertain of your abilities to wire up ,ask a competent electrician .........your life is worth more than £50.00.

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