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I have a 2 zone hvac system controlled by a mastertrol mark 5 system. I would like to remove the trol-a-temp wall mount and mercury thermostat and install a honeywell 5-1-1- programmable thermostat

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Carrier Performance Edge Programmable Thermostat

Are you a qualified refridgerator mechanic with an eletrical liscence? If not get someone who is because doing it yourself will not only void the warranty of the unit but will also void your house and contense insurance in the event of a fire.

Posted on Mar 16, 2008

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SOURCE: Need help with wiring thermostat

first do you have a heat pump unit or standard a/c? standard a/c connections at the thermostat go like this red wire to rh-rc which is the 24v power and you don't have to remove the jumper.white goes to w which is the heating wire yellow goes to y which is the cooling wire green goes to g which is the fan wire and blue goes to c which is the common wire. so if your stat has rc- rh ywgc you should be set if the wires on the furnace correspond with the same alpha may be used if u have a heat pump unit otherwise it may just be a spare you cap off and leave behind the subplate.

Posted on May 31, 2009

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SOURCE: Hi, I have a Honeywell Thermostat

if you thermostat doesnt use batteries and it has no power, that means there is a problem with the air conditioing system itself. 90% of the time it is a safety switch such as a float switch (drainage problem), which cuts the power to the system to prevent damage to your house from condensate water leakage or just further damage to the system itself. Call the a/c guys, this is going to require expertise.

Posted on Oct 09, 2009

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SOURCE: please tell me how to reset my honeywell hz322

There is a way to restore the Factory Defaults via the Advanced Configuration Mode. Be careful, this will require thorough knowledge of you system to reconfigure based on your particular system. Here is a link to the manual to assist you with the Advanced Configuration Mode.
Specifically, pages 6 & 7. Visit this link:

Posted on Feb 14, 2010

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SOURCE: Looking for a manual for

google mitsubishi hvac . there should be a number to call . give the person the model & serial number to that unit they should be able to help you .

Posted on Aug 11, 2010

Testimonial: "Thanks. I finally found it on the Mitsubishi site for discontinued items."

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2006 mercury milan blower wiring diagram free wiring diagrams .Enter your vehicle info. year , make , model and engine size . under system click on HVAC , then under subsystem HVAC controls will pop up on it's on . Click the search button ,then the blue link's one at a time . Does your vehicle manual or electronic automatic temp control ?

Sep 23, 2017 | Mercury Cars & Trucks

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Remote will not communicate with wall unit

try repacing batteries-or/and turn off high voltage to system waite 5 minutes -turn back on---if this doesn't work call an hvac contractor or go on line for troubleshooting advice

Oct 13, 2015 | Sanyo 09KHS71 9,000 BTU Single Zone...

1 Answer

Yourhome honeywell com

To start, most tstats pull straight off of its base, or pull away from the bottom and lift from the top. Yours should be a touch screen and pulls straight out. Hopefully the installer secured the base well enough to the wall. At the tstat that has dehum. capability, see if it has a terminal marked D or H for dehum. If so, there is a wire connected. Now at the 1 you would like to replace, remove tstat from base, and check the number of wires you have available. If you don't have a "spare" wire for the new tstats' H(humidity) terminal, it won't work out because you'll need an extra wire. Also the existing tstat may have that option, but isn't configured for dehumidification. Might check that too. It is possible to add dehumidification to any and all zones depending on available wires. Also, at the geothermal, this "extra" wire needs to be connected.

Mar 10, 2017 | Heating & Cooling

1 Answer

Roof a/c's wont come on unless you set temp to 55 degrees

Tried another thermostat? Also check that where thermostat is mounted isn't a warm zone, that is detecting higher temperatures. Put another thermostat on wall beside it to check. Another thing is to take thermostat of the wall and let it hang and try it. I've had some where warm air was blowing/sucking past hole for wiring in wall, and throwing thermostat off.

Sep 26, 2012 | Dometic Rooftop RV Air Conditioner

1 Answer

Which termostat works fine to operate AC and Heat with Mastertrol mark v and i did check there is only 2 wires red and white.

You could use a dual thermostat and this is a three wire to control cooling and heating.

Aug 31, 2011 | Heating & Cooling

1 Answer

02 dodge ram 1500 heat on passenger side of vechile only

If you are getting heat only on the pass. side then I believe the blend door has failed. Dodge has a fix and the job is not easy as almost the whole dash needs to come out in order to get to the heater box and the door. I have read that a simple flush of the heater core will cure it, But that diidn't work for me. I think because dual climate control was an option the door is set up to control the two sides of the cab. When it fails only the pass. side gets heat.

Unfortunatly you do have to remove the dash to access any of the blend door or fresh air door actuators
here is a step by step proceedure this takes aprox 5 hrs in a shop so plan on a weekend at home good luck




Disconnect and isolate the battery negative cable.
Remove the instrument panel assembly from the vehicle.


Fig. HVAC housing, dual zone shown (single zone similar)-nut (1), passenger blend door actuator (2), nut (3), inlet baffle (4), recirc door actuator (5), recirc air door (6), driver side blend door actuator (7), HVAC housing (8), bolt (9), defroster door actuator (10), mode door actuator (11)

Remove the electrical connector from the actuator.
Remove the mounting screws from the actuator.
Remove the actuator from the HVAC housing.

Install the floor-defrost door actuator to the HVAC assembly.
Install the mounting screws and tighten to 2.2 Nm (20 in. lbs.) .
Install the actuator electrical connector.
Install the instrument panel assembly into the vehicle.
Connect the battery negative cable.

I suggest check (or replace if is necessary), the blend door it is a huge project you have to remove the dash board. There is a repair kit available either way it is a 8 hr shop time project.

Hope helps.

Dec 27, 2010 | 2002 Dodge Ram Maxi

1 Answer

The wall mounted thermostat in a condominium unit (central HVAC in a high rise) is defective. I need to know 1. how to take out the existing thermostat (Honeywell T6069A1008) and 2. what replacement is...

i think you may have a fan/control board problem, if the thermostat turns on the fan, and you dont touch it, then the fan stops in a short time...
plus the fan is connected to a control board, like i said those thermostats hardly go bad...

Dec 19, 2010 | Honeywell Heating & Cooling

1 Answer

Problem with dual zone heating only one side i check control thermost botton is ok

Sounds like the blend door actuator. It separates the driver and passenger side from getting air on the AZC system. Here are some instructions on replacing it:
The passenger side blend door actuator is used on all models equipped with Automatic Zone Control (AZC). This actuator is located on the front of the HVAC housing to the right of the floor panel transmission tunnel and cannot be removed from the passenger compartment without instrument panel or HVAC housing removal.

NOTE: This procedure is for AZC Systems (Passenger side only).

  1. Disconnect and isolate the battery negative cable.
  2. Remove the glove box door. See: Body and Frame\Interior Moulding / Trim
  3. Remove the lower I/P glove box door surround panel.
  4. Remove the dash assembly. See: Body and Frame\Interior Moulding / Trim\Dashboard / Instrument Panel\Service and Repair\Instrument Panel Assembly
  5. Remove the HVAC assembly. See: Housing Assembly HVAC\Service and Repair
  6. Unplug the wire harness connector from the blend door actuator.
  7. Remove the 2 screws that secure the blend door actuator to the HVAC housing.
  8. Remove the blend door actuator from the HVAC housing.
INSTALLATION - AZC (Passenger side only)

  1. In stall the blend door actuator on the HVAC housing and tighten the two mounting screws to 2.2 Nm (20 in. lbs.).
  2. Plug in the wire harness connector to the blend door actuator.
  3. In stall the HVAC unit into the vehicle. See: Housing Assembly HVAC\Service and Repair
  4. Install the instrument panel assembly into the vehicle. See: Body and Frame\Interior Moulding / Trim\Dashboard / Instrument Panel\Service and Repair\Instrument Panel Assembly
  5. Evacuate the HVAC system.
  6. Recharge the HVAC system.
  7. Connect and the battery negative cable.
Hope it helps! If you need more, just send me an email at familyguy77351 at yah I wil be glad to finish helping you with more detail.

Dec 12, 2010 | 2000 Jeep Grand Cherokee

1 Answer

The Zone 1 (basement) and Zone 3 (second floor; no

On the zone damper motor, there should be a little lever allowing you to open the damper for emergency heat. Probably a bad zone motor or connection.

Dec 26, 2009 | Honeywell Electronic Programmable...

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