Hunter 40120 Support Question
Hunter 40120 Support Question
Find answers below for this question about Hunter 40120.Need a Hunter 40120 manual? We have 3 online manuals for this item!
Question posted by samkatwa425 on October 13th, 2020
What Can I Do If It Won't Shut Off
In midsummer it started running and wont shut down. Have to turn off main furnace breaker to start/stop.
Current Answers
Answer #1: Posted by INIMITABLE on October 13th, 2020 11:44 PM
INIMITABLE
Member since:
April 3rd, 2020 Points: 2,082,030
Member since:
April 3rd, 2020 Points: 2,082,030
1. My heating or cooling will not turn on or off.
1 a. Check the HE/HG switch to ensure it is set to the correct
position.
1 b. Check the circuit breakers and switches to ensure there is
enough power to the system.
1 c. replace the batteries with fresh AA alkaline batteries.
1 d. If applicable, make sure the furnace blower door is closed
properly.
I hope this is helpful? PLEASE "ACCEPT" and mark it "HELPFUL" to complement my little effort. Hope to bring you more detailed answers
-INIMITABLE
Related Hunter 40120 Manual Pages
Owner's Manual - Page 1
Electronic/Mechanical Thermostat
installation and operation manual
Model 40120
1
44018-01 04-01-2008
Owner's Manual - Page 3
Table of Contents
Important Information 5 Tools 6 Uninstalling the Existing Unit 9 Installing the Thermostat 12 Installing the wall plate 14
connecting the wires 15 attaching the thermostat 17 Operation 20 Indicators & Adjustments 22 Troubleshooting 25 Wiring Diagrams 27
3
Owner's Manual - Page 4
Thank you for complete operation instructions.
4
Please read this manual before beginning installation and save this booklet for choosing a Hunter thermostat. Electronic/Mechanical Thermostat
Model 40120
Congratulations! Your new Hunter thermostat will provide years of reliable service and year-round energy savings.
Owner's Manual - Page 5
Fired Boilers Gas - Fired Furnace
Electric Furnace
This thermostat is designed to work on the following heating and cooling systems:
Gas - Standing Pilot Gas - Electronic Ignition
Gas - important information This thermostat is not designed for heat pump systems or 110/220 V baseboard heating systems.
If you are unsure what kind of heating and cooling system...
Owner's Manual - Page 6
Tools This thermostat includes two #8 slotted screws and
two wall anchors for mounting. To install your new thermostat, you will need the following supplies:
Flat-head screwdriver
Small Phillips-head screwdriver
Hammer
Electric drill and 3/16" bit
Two fresh 1.5 Volt (AA) size alkaline batteries
6
Owner's Manual - Page 7
The wires must be labeled prior to removal to ensure proper reconnection.
7 Do not disconnect the wires from the existing thermostat before reading these instructions. NOTICE!
Owner's Manual - Page 9
... power OFF from the wall.
(Some thermostats may be removed or disengaged.)
3. Locate, but do not disconnect the wires.
(If wires are not visible, they may have doors that must be connected to the HVAC system OFF at the main power panel or at the furnace.
2. Turn the power to the back of the...
Owner's Manual - Page 10
If your existing thermostat is marked... RH / r / vr / 4 w / h g / f
label the wire with this sticker:
24 Volt RH
heating W
fan G
G W RH
* See page 27 for complete wiring diagram.
10
Owner's Manual - Page 11
... wall plate.
11 uninstalling the existing unit, cont.
4. Using the provided stickers, label each wire according to the existing terminal designation for non-battery powered thermostats.
5. After all wires are not labeled, contact a
qualified HVAC technician.)
W RH G W
Note: Wire colors do not connect it to the wall as you have a wire...
Owner's Manual - Page 12
installing the thermostat INSTALLING THE THERMOSTAT
1. Remove the new thermostat from the back plate by pulling the two halves apart. Wall Plate
Thermostat 12
Owner's Manual - Page 14
... plate on the wall, pulling the wires through the opening .
3. Insert the mounting screws through the opening . installing the thermostat, cont. Tap the plastic anchors into the anchors. Verify that the thermostat is visually level and securely tighten both screws.
14 INSTALLING THE WALL PLATE
2. Reposition the wall plate on the wall...
Owner's Manual - Page 16
Wires should be inserted behind the black terminal shields. installing the thermostat, cont. Loosen, but do not remove, the terminal screws.
2. Tighten each screw after the connection has been made.
(The ends of any excess wire length ...
Owner's Manual - Page 18
Insert two fresh AA alkaline batteries. 6. ATTACHING THE THERMOSTAT
4. Restore power at the electrical panel or
furnace.
18 Set the switch to HG for electric furnaces.
5. Align the thermostat with the the wall plate,
and snap the two halves together. 7. Set the switch to HE for a gas furnace or oil burner. Locate the HE/HG switch...
Owner's Manual - Page 21
To run the fan continuously, slide the Fan Switch to the desired
temperature. 2. In a normal gas or oil furnace, the fan will be turned on by your system. The Fan Switch should normally be turned on along with normal
operation of the thermostat.
Operation 1. Note: In Auto , The fan will be located in
the Auto position...
Owner's Manual - Page 22
... fresh AA alkaline batteries at your system OFF. indicators and adustment 1. When this warning appears, the thermostat is the Shut-down and will remain shut-off until you install two fresh AA alkaline batteries.
22 Your system will turn your earliest convenience.
3. The Battery Indicator displays two stages of Weak Battery Warning, indicated by...
Owner's Manual - Page 24
... too often or not often enough, then use a small Phillips-head screwdriver to turn the Span Adjust left or right to change the cycle time. 1. Reattach the thermostat to cycle your system run LONGER, turn the Span Adjust counter clockwise.
4. Remove the thermostat from the wall plate.
2.
For maximum system efficiency and a sustained comfortable temperature...
Owner's Manual - Page 25
....
1 b. My system continues to operate when the
thermostat is set to ensure it is in the off .
1 a. Replace the batteries with fresh AA alkaline batteries. 1 d. If applicable, make sure the furnace blower door is enough power to ensure there is closed
properly.
2. 1. Check the circuit breakers and switches to the system.
1 c. Replace unit...
Owner's Manual - Page 10
RH / r / vr / 4 w / h g / f
label the wire with this sticker:
24 Volt RH
heating W
fan G
G W RH
* Vea la página 27 para el digrama eléctrico completo
10
If your existing thermostat is marked...
Owner's Manual - Page 6
les outils This thermostat includes two #8 slotted screws and
two wall anchors for mounting.
To install your new thermostat, you will need the following supplies:
Tournevis à tête plate
Petit tournevis Phillips
Marteau
Perceuse électrique et mèche de 3/16
Deux batteries alcalines de 1,5 Volts (AA
6
Owner's Manual - Page 10
RH / r / vr / 4 w / h g / f
label the wire with this sticker:
24 Volt RH
heating W
fan G
G W RH
* Voir la page 27 pour le diagramme de câblage complet
10 If your existing thermostat is marked...
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