Honeywell L4064B2236 Fan/Limit Control Heater - Page 6 - Answered Questions & Fixed issues

What is model of the Thermostat

2-fywiog52uc2ssdn5xk2mhim4-2-2.jpg Did you check the Circuit Breakers to make certain you have not simply tripped a breaker?

In general, depending on where you live: If you will need Heat select Heat then set the desired Temperature
If you will need Cooling select Cool and then set the desired Temperature.
Fan should be set on Auto.

Honeywell... | Answered on Apr 28, 2019 | 32 views

press button below where it says unlock.
Enter code...1234
press up/down button until you get 1
then press select.
repeat until you get 1234 on screen
then press select, should unlock it.

Honeywell... | Answered on Apr 11, 2019 | 62 views

What does 2 flashes mean ?.
Maybe the controller is bad

Honeywell... | Answered on Apr 06, 2019 | 38 views

Where was the jumper on the old thermostat .Was it from R to Rc

Honeywell... | Answered on Apr 06, 2019 | 51 views

possible high pressure cut out, low pressure switch, thermal overload, no fan...

Honeywell... | Answered on Mar 26, 2019 | 78 views

Honeywell has the manual for the RTH7600D thermostat is available on the product page: . Click on the Manuals tab. Both the installation and operating manuals are available. The current link to the installation guide is . The operating manual is here: .

I hope this helps.

Cindy Wells

Honeywell... | Answered on Feb 24, 2019 | 77 views

Im assuming that--
you waited long enough for the valve to open
you used the manual lever to check for flow
same thermostat
boiler isn't off on reset
theres power to the boiler
Do you hear the valve energize? If not--
The orange wires are interchangeable so it dosnt matter. the zone valve is normally closed so it wont open unless it gets power from a call for heat. Follow the blue and brown wires down to the control and make sure they aren't cracked. Check for water in control panel. Pull relay and look for small soot mark inside (blown).If wires have been spliced at any point remove wire nuts restrip wire and use NEW wire nuts to reconnect.At control remove wires one at a time clip and strip and reconnect. make sure the wire is wrapped around screw and tighten. If valve still isn't opening check the corresponding TT terminal connections clip and strip and reconnect.Still no water? With wires removed jump the TT terminals. If it powers after at least 15 sec then it may be either you thermostat or the wire going to it.
It could also be on the water side. If the plunger inside the valve body is stuck closed or clogged you can either isolate and drain the zone, remove the brass plug and dig around or buy a zone valve WITH the brass body. isolate and drain the zone, sweat off the old one and sweat on a new one. I know...good times :-{

Honeywell... | Answered on Feb 24, 2019 | 65 views

Blinking amber light indicates a shorted or tripped damper motor circuit. I would check to see if there's power to the damper motor if there is check to see if damper is jammed and not allowing full motion of damper. If there isn't find out why and restore it. Then test zone for proper and full motion.
This link may help.

Honeywell... | Answered on Feb 13, 2019 | 336 views

Chances are it's a bad daamper. You can bypass any tstat by wiring red green and yellow together. Bypass the tstat, if still blinking you'll know it's the damper. You can then swap that damper to another zone and be sure the new zone then starts flashing.

Honeywell... | Answered on Feb 25, 2019 | 1,207 views

Get it serviced. If a service switch has tripped there may be a component failure or circuit issues. Also, gas boilers are required by law to be inspected and serviced annually so if your service light is on or it's overdue for a service, only a licensed tech can service it.

Honeywell... | Answered on Jan 27, 2019 | 91 views

So is the unit running ? Hz311 is a zoning board, how about your tstats, is air blowing in the rooms with the tstats when the unit is running?

Honeywell... | Answered on Jan 26, 2019 | 442 views

Pull power or battery from the thermostat, then restore power. If you get the same display, the thermostat is bad and will need to be replaced. It is not a hard job, just note what color wire is attached to which terminal, and install the new one the same way. It doesn't have to be Honeywell. You just need to know what is being controlled. Is it for Heat only, or A/C only, or A/C and heat, or a heat pump.

Honeywell... | Answered on Jan 24, 2019 | 124 views

More information is needed to be certain: What is the Interterm model number? What terminals were the wires connected to on the interterm, wire color and terminal ?

Honeywell... | Answered on Jan 22, 2019 | 89 views

is it in the cooling or heating mode. check system button.

Honeywell... | Answered on Jan 19, 2019 | 62 views

Is that a NEW thermostat? If so, not all thermostats are created equal. Some are made for gas, some for electric and some are for heat pump but ALL are different. Ones set up for electric don't have switching for electric gas valves and ones for electric and gas don't have switching for the aux. 10 Kw heat strip in a heat pump. Thermostat wiring color codes are also different. If you accidentally got a "stat" for a heat pump, the color markings for the wiring inside it may be the same but could connect to something completely different in your gas heater. Good luck.

Honeywell... | Answered on Jan 16, 2019 | 64 views

It's going to go to the s1 terminals but if you're on redlink you should be getting the outdoor temp from internet

Honeywell... | Answered on Jan 13, 2019 | 59 views

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