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Honeywell L7103 Electronic Aquastat installed on a Aero Bradford/White domestic hot water heater. Digital readout on aquastat is 126 deg F. Actual water temperature at faucet is 102 deg F. How do I increase output water temperature?

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You need to increase the water temp in tank. Your read out is not correct. Just raise the temp and you should be fine here is how. Instruction book says to press the UP, DOWN and I buttons on the circuit board all together for 3 seconds. Then press the I button until the item you want is displayed i.e. the upper limit set point. Then press the UP button until you have set the temperature you want. After 60 seconds without any inputs, the temp is set and the system goes back to READ mode.

I just got one and need to set my upper limit from 130 to 140 degrees. Showers are a bit cool.

Hope this helps.

Posted on Oct 02, 2009

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1 Answer

Why will my boiler not fire up for heating but works fine on hot water


you have a triple aquastat that maintains a temperature level needed to provide hot water. but you are not getting the thermostat to operate the central heating. The thermostat is a switch that operates by temperature. if you have tried raising the thermostat and the system did nor kick in try jumping the thermostat terminals in the aquastat . if that works then the problem is either in the thermostat or the wiring to the thermostat. also with a electrical tester." while the thermostat is jumped" test the c1 and c2 terminals to see if power is going to the circulator. If not then you need a new aquastat. if you have power and the pump is not moving water replace it.

Oct 11, 2014 | Water Heaters

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How do I disable low limit


WHY???????????????????
Only common sense option is to remove the Aquastat as you can adjust the lower limit down but NOT disable it. Bigger question may be What are you trying to do and do you know what you are doing???
Aquastats are made to START and STOP Pumps in Recirculation systems at settable limits not run them 24/7.
Running a pump 24/7 voids the heater warranty.

Sep 11, 2014 | Honeywell L8124a 1007 Triple Aquastat...

1 Answer

Want to raise the water temp


Stand alone water heaters have temperature controls in different locations.

11_23_2012_12_50_47_pm.jpg
Most residential electric water heaters operate on 240 volts. Please, shut off power first whenever you need open or remove panels for adjustments or servicing.

"Traditional" electric water heaters have them behind removable panels - like the top and bottom gray panel on the water heaters on the right side of the photo. Both panels have adjustable controls behind them and both should be adjusted to the same setting.

Some newer electric water heaters use electronic controls. These may be accessible without removing panels and even have digital displays. Others have controls that are located on the top of the heater - behind a panel. Electronically controlled water heaters may or may not need to be powered on when making adjustments. Check your manual if in doubt.

Gas (propane & natural gas) type water heaters have the temperature control on the gas valve. There are often two controls on the valve, one for the pilot (off, light and on positions) and a second for temperature adjustment.

A tankless water heater built into your home's furnace is controlled by an "aquastat". An aquastat is a fancy term for a thermostat to control water temperature. A typical aquastat is mounted directly on or very near the furnace and looks like this:

11_23_2012_1_08_47_pm.jpg
Inside, are several temperature settings. Here's a photo of the interior of the Honeywell aquastat:


11_23_2012_1_12_16_pm.jpg
The Hi dial should never be set to a value lower than the Lo dial. "Safe" settings are Hi = 180, Lo = 160 and Diferential (above "Lo") = 10. You'll need to tweak these up a bit to make water hotter. You should read more about settings for these aquastats here. Skip down to the section titled "What Settings To Use on a Heating Boiler Aquastat Combination Control"

I hope this helps & good luck!

Nov 22, 2012 | General Electric GE SmartWater Household...

1 Answer

How do l replace the electronic gas control valve on a whirlpool hot water heater tank?


Whirlpool is made by American water heater.
Gas valve is made by Honeywell.
Whirlpool electronic control is version of Honeywell 'Icon' gas valve: There are several versions of this gas valve.

http://waterheatertimer.org/pdf/Bradford-White-service-manual.pdf
Start page 24 shows: Testing, disassembly and replacement of typical Honeywell gas valve.

Whirlpool phone number 1-877-817-6750
Whirlpool manuals:
http://www.whirlpoolwaterheaters.com/support/manuals.aspx

Aug 10, 2011 | Whirlpool Water Heaters

1 Answer

I want to increase the boiler temp by using the your aquastat


Warning! Can cause electrical shock! Here is the instruction manual
for L7248c
http://customer.honeywell.com/techlit/pdf/PackedLit/68-0281.pdf

Jan 12, 2009 | Water Heaters

1 Answer

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

Oct 08, 2008 | Water Heaters

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