KOBE CH7930SQ Troubleshooting guide

KOBE Brand Range Hood
Model No. CH7930SQ
CH7936SQ
CH7942SQ
CH7948SQ
CH-179 SERIES – 9” HEIGHT
INSTALLATION INSTRUCTIONS
AND OPERATION MANUAL

- READ AND SAVE THESE INSTRUCTIONS -
CONTENTS
IMPORTANT SAFETY INSTRUCTIONS......................................................................... 2
COMPONENTS OF PACKAGE....................................................................................... 4
INSTALLATION ............................................................................................................... 5
OPERATING INSTRUCTIONS...................................................................................... 18
MAINTENANCE ............................................................................................................ 19
SPECIFICATIONS......................................................................................................... 21
MEASUREMENTS & DIAGRAMS................................................................................. 22
PARTS LIST .................................................................................................................. 24
CIRCUIT DIAGRAM ...................................................................................................... 27
TROUBLE SHOOTING ................................................................................................. 29
DISCLAIMER ................................................................................................................ 30
WARRANTY.................................................................................................................. 31
PRODUCT REGISTRATION ......................................................................................... 33
- READ ALL INSTRUCTIONS CAREFULLY BEFORE STARTING -
ALL WIRING MUST BE DONE BY A PROFESSIONAL AND IN
ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES.

2
IMPORTANT SAFETY INSTRUCTIONS
- PLEASE READ THIS SECTION CAREFULLY BEFORE INSTALLATION -
WARNING : TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR PERSONAL
INJURY, OBSERVE THE FOLLOWING:
1) Installation and electrical wiring must be done by qualified professionals and in accordance
with all applicable codes and standards, including fire-rated construction.
2) When cutting or drilling into wall or ceiling, be careful not to damage electrical wiring or
other hidden utilities.
3) Ducted fans must be vented to the outside.
a) Before servicing or cleaning unit, open the light panel and SWITCH POWER OFF AT
SERVICE PANEL.
b) Clean all grease laden surfaces frequently. To reduce the risk of fire and to disperse air
properly, make sure to vent air outside. DO NOT vent exhaust air into wall spaces,
attics, crawl spaces or garages.
NOTE - This warranty is invalid without an authorized agent’s receipt or if
unit is damaged due to misuse, poor installation, improper use,
mistreatment, negligence or any other circumstances beyond the
control of KOBE RANGE HOODS authorized agents. Any repair
carried out without the supervision of KOBE RANGE HOODS
authorized agents will automatically void the warranty.
- KOBE RANGE HOODS will not be held responsible for any
damages to personal property or real estate or any bodily injuries
whether caused directly or indirectly by the range hood.
WARNING : TO REDUCE THE RISK OF PERSONAL INJURY IN THE EVENT OF A
RANGE TOP GREASE FIRE:
- Keep all fan, baffle/spacer/filter/oil tunnel/oil container and grease-laden surfaces clean.
Grease should not be allowed to accumulate on fan, baffle/spacer/filter/oil tunnel/oil
container.
- Always turn hood ON when cooking.
- Use high settings on cooking range ONLY when necessary.
- Do not leave cooking range unattended when cooking.
- Always use cookware and utensils appropriate for the type and amount of food prepared.
- Use this unit only in the manner intended by the manufacturer.
- Before servicing, switch power off at service panel and lock service panel (if possible) to
prevent power from switching on accidentally.
- Clean ventilating fan frequently.

3
What to Do In The Event Of a Range Top Grease Fire
- SMOTHER FLAMES with a tight fitting lid, cookie sheet, or metal tray, and then turn off the
burner. KEEP FLAMMABLE OR COMBUSTIBLE MATERIAL AWAY FROM FLAMES. If
the flames do not go out immediately, EVACUATE THE AREA AND CALL THE FIRE
DEPARTMENT or 911.
- NEVER PICK UP A BURNING PAN – You May Get Burned.
- DO NOT USE WATER, including wet dishcloths or towels – a violent steam blast will result.
- Use an extinguisher ONLY if:
a) You have a Class A, B, C extinguisher and know how to operate it.
b) The fire is small and contained in the area where it started.
c) The fire department has been called.
d) You can fight the fire with your back to an exit.
What to Do If You Smell Gas
- Extinguish any open flame.
- Do not try to turn on the lights or any type of appliance.
- Open all doors and windows to disperse the gas. If you still smell gas, call the Gas
Company and Fire Department right away.
CAUTION
1) For general ventilation use only. Do not use to exhaust hazardous or explosive materials
and vapors.
2) To reduce the risk of fire, use only metal ductwork. Sufficient air is needed for proper
combustion and exhausting of gases through the flue (chimney) to prevent back drafting.
3) Follow the heating equipment manufacturer’s guideline and safety standards such as those
published by the National Fire Protection Association (NFPA), and the American Society for
Heating, Refrigeration and Air Conditioning Engineers (ASHRAE), and code authorities.
4) Activating any switch on may cause ignition or an explosion.
5) Due to the size and weight of this hood, two people installation is recommended.
ELECTRICAL SHOCK HAZARD – Can result in serious injury or
death. Disconnect appliance from electric power before servicing.
If equipped, the fluorescent light bulb contains small amounts of
mercury, which must be recycled or disposed of according to
Local, State, and Federal Codes.

4
COMPONENTS OF PACKAGE
(Must keep all material for returns or refunds)
Range Hood Box Duct Cover Box (Sold Separately)
{A} KOBE Range Hood
{B} Warranty Registration Card
{C} Instructions Manual
{D} Vent Cover (Top)
{E} Oil Containers (Round)
{F} Oil Containers (Oval)
{A}
{B} {C}
{D} {E}
{F}
{G} KOBE Duct Cover (Model No. CH1120DC)
{H} Screws Package
{I} Duct Cover-Mounting Bracket
{J} Hood-Mounting Bracket
{G}
{H} {I}
{J}
- FOR MORE INFORMATION, PLEASE VISIT OUR WEBSITE www.KOBERangeHoods.com OR
CONTACT KOBE RANGE HOODS AT [phone].

5
INSTALLATION
PLEASE READ ENTIRE INSTRUCTIONS BEFORE PROCEEDING
Calculation before Installation
Calculate the length of the installation, before installing the hood. (All calculation is measure in
inches.)
- FOR UNDER THE CABINET -
TABLE 1
A = Height of Floor to Ceiling
B = Height of Floor to Counter Top
(Standard: 36”)
C = Preferred Height of Counter Top
to Hood Bottom (Recommended
27” to 30”)
D = Height of Hood
E = Height of the Cabinet
- FOR STAND ALONE (WITH OPTIONAL DUCT COVER) -
TABLE 2
A = Height of Floor to Ceiling
B = Height of Floor to Counter Top
(Standard: 36”)
C = Preferred Height of Counter Top
to Hood Bottom (Recommended
27” to 30”)
D = Height of Hood
E = Height of Duct Cover [F – D]
F = Height of the Hood Installation
[A – (B+C)]

6
SAFETY WARNING
HOOD MAY HAVE VERY SHARP EDGES; PLEASE WEAR PROTECTIVE GLOVES IF IT
IS NECESSARY TO REMOVE ANY PARTS FOR INSTALLING, CLEANING OR
SERVICING.
NOTE: BE CAREFUL WHEN USING ELECTRICAL SCREWDRIVER, DAMAGE TO THE
HOOD MAY OCCUR.
Installation Contents
UNDER THE CABINET INSTALLATION – TOP VENT............................................................. 7
UNDER THE CABINET INSTALLATION – REAR VENT .......................................................... 9
STAND ALONE INSTALLATION – TOP VENT ....................................................................... 11
STAND ALONE INSTALLATION – REAR VENT .................................................................... 14

7
UNDER THE CABINET INSTALLATION – TOP VENT
Preparation before Installation
NOTE: TO AVOID DAMAGE TO YOUR HOOD, PREVENT DEBRIS FROM ENTERING THE
VENT OPENING.
- Decide the location of the venting pipe from the hood to the outside. Refer to Figure 1.
- A straight, short venting run will allow the hood to perform more efficiently.
- Try to avoid as many transitions, elbows, and long run as possible. This may reduce
the performance of the hood.
- Temporarily wire the hood to test for proper operation before installing.
- Peel protective film off the hood (if any).
- For installing under the cabinet with recessed bottom, attach 4-inch wide wood filler
strips (not included) on each side. Refer to Figure 2.
- Measure and create access opening for electrical wires under the cabinet.
- Cut the multi duct exhaust according to the size of the venting pipe. Refer to Figure 3.
Figure 1 Figure 2
Figure 3
6” Round Vent 7” Round Vent 3-1/4” x 10” Vent
Hood Installation
CAUTION: If required to move the cooking range to install the hood, turn OFF the power on an
electric range at the main electrical box. SHUT OFF THE GAS BEFORE MOVING A GAS
RANGE.

8
1. Puncture the knockout holes on the hood as shown in Figure 4.
2. Unscrew the six screws on the bottom casing. Remove the bottom casing. If necessary,
arrange the electrical wires to run through the 1” diameter hole on the hood. Refer to
Figure 5.
3. Using references on Table 1 and measurements on page 21, center the hood in place
beneath the cabinet and flush with the front of the cabinet.
1” Diameter
Hole
Figure 4 Figure 5
4. Draw electrical wires through cabinet access opening.
5. Place screw (not provided) into the exact center of each knockout hole. Make sure all
screws are in place before tightening screws. CAUTION: MAKE SURE THE HOOD IS
SECURE BEFORE RELEASING.
Ductwork Installation
6. Use aluminum or steel pipe to connect the plastic exhaust on the hood to the ductwork
above. Use duct tape to make all joints secure and air tight.
7. Continued on page 16.

9
UNDER THE CABINET INSTALLATION – REAR VENT
Preparation before Installation
NOTE: TO AVOID DAMAGE TO YOUR HOOD, PREVENT DEBRIS FROM ENTERING THE
VENT OPENING.
- Decide the location of the venting pipe from the hood to the outside. Refer to Figure 6.
- A straight, short venting run will allow the hood to perform more efficiently.
- Try to avoid as many transitions, elbows, and long run as possible. This may reduce
the performance of the hood.
- Temporarily wire the hood to test for proper operation before installing.
- Peel protective film off the hood (if any).
- For installing under the cabinet with recessed bottom, attach 4-inch wide wood filler
strips (not included) on each side. Refer to Figure 7.
- Measure and create access opening for electrical wires under the cabinet or access
opening for the electrical wires at the rear of the hood.
- Remove the screws on the vent cover (rear) and cut along the line of the inner vent
cover (rear) opening. Refer to Figure 8.
- Cut the vent cover (rear) opening and reverse to the other side. Refer to Figure 9.
Reattach the vent cover (rear).
Figure 6 Figure 7
Inner Vent Reversed
Cover (Rear) Vent Cover
(Rear)
Figure 8 Figure 9
Hood Installation
CAUTION: If required to move the cooking range to install the hood, turn off the power on an
electric range at the main electrical box. SHUT OFF THE GAS BEFORE MOVING A GAS
RANGE.

10
1. Puncture the knockout holes on the hood as shown in Figure 10.
2. Unscrew and remove the multi duct exhaust. Replace with {D} vent cover (top) on page
3. Refer to Figure 11.
Figure 10 Figure 11
3. Unscrew the six screws on the bottom casing. Remove the bottom casing. Arrange the
electrical wires to run through the 1” diameter hole on the top or the rear of the hood.
Refer to Figure 12.
4. Using references on Table 1 and measurements on page 21, center the hood in place
beneath the cabinet and flush with the front of the cabinet.
5. Place screw (not provided) into the exact center of each knockout hole. Make sure all
screws are in place before tightening screws. CAUTION: MAKE SURE THE HOOD IS
SECURE BEFORE RELEASING.
1” Diameter Hole
Figure 12
Ductwork Installation
6. Use aluminum or steel pipe to connect the exhaust opening at the rear of the hood to the
ductwork. Use duct tape to make all joints secure and air tight.
7. Continued on page 16.

11
STAND ALONE INSTALLATION – TOP VENT
***This installation only applied with the purchase of an optional duct cover (Model No. CH1120DC).
Preparation before Installation
NOTE: TO AVOID DAMAGE TO YOUR HOOD, PREVENT DEBRIS FROM ENTERING THE
VENT OPENING.
- Decide the location of the venting pipe from the hood to the outside. Refer to Figure 13.
- A straight, short venting run will allow the hood to perform more efficiently.
- Try to avoid as many transitions, elbows, and long run as possible. This may reduce
the performance of the hood.
- Use duct tape to seal the joints between pipe sections.
- If necessary, prepare back wall frame with cross framing lumber for secure installation.
- Using references on Table 2 and measurements on page 21-22, decide the level of the
lumber. Refer to Figure 14.
Hood Preparation before Installation
- Temporarily wire the hood to test for proper operation before installing.
- Peel protective film off the hood and the duct cover (if any).
- Cut the multi vent exhaust according to the size of the venting pipe. Refer to Figure 15.
Figure 13 Figure 14
Figure 15
6” Round Vent 7” Round Vent 3-1/4” x 10” Vent

12
- If necessary, attach two rubber stands (provided) with two (4x8 mm) screws (provided)
to the back of the hood.
- Attach the hood-mounting bracket to the back of the hood with nine (3/16” x 3/8”)
screws (provided) as shown in Figure 16.
Hood Installation
CAUTION: If required to move the cooking range to install the hood, turn off the power on an
electric range at the main electrical box. SHUT OFF THE GAS BEFORE MOVING A GAS
RANGE.
1. Using references on Table 2 and measurements on page 21-22, mark the leveling point
of the hood. Position two mounting screws (not provided) on the wall, leaving 1/8” away
from the wall as shown in Figure 17.
Figure 16 Figure 17
2. Align hood-mounting bracket to the two screws on the wall and hook hood into place.
Tighten screws to secure hood to the wall. CAUTION: MAKE SURE THE HOOD IS
SECURE BEFORE RELEASING.
Duct Cover Installation
3. Mark the position of the duct cover-mounting bracket. Use reference Efrom Table 2 and
measurements on page 21-22. Attach and secure duct cover-mounting bracket with two
screws (not provided). Refer to Figure 18. NOTE: Inner duct cover will cover the duct
cover-mounting bracket.
4. Use aluminum or steel pipe to connect the plastic exhaust on the hood to the ductwork
above. Use duct tape to make all joints secure and air tight.
5. Connect electrical wires. Refer to “Wiring to Power Supply” on page 16.
6. Slide the inner duct cover up 2 inches before sliding the entire duct cover onto the hood.
Refer to Figure 19.
Mounting
Screws

13
Figure 18 Figure 19
7. Adjust the height of the inner duct cover to the duct cover-mounting bracket. Secure the
inner duct cover with two (4x8 mm) screws (provided) as shown in Figure 20.
Figure 20
8. Fasten outer duct cover to multi vent exhaust on the hood with four (4x8 mm) screws
(provided).
9. Continued at “Install Accessories” on page 16.
Attach Together

14
STAND ALONE INSTALLATION – REAR VENT
***This installation only applied with the purchase of an optional duct cover (Model No. CH1120DC).
Preparation before Installation
NOTE: TO AVOID DAMAGE TO YOUR HOOD, PREVENT DEBRIS FROM ENTERING THE
VENT OPENING.
- Decide the location of the venting pipe from the hood to the outside. Refer to Figure 21
- A straight, short venting run will allow the hood to perform more efficiently.
- Try to avoid as many transitions, elbows, and long run as possible. This may reduce
the performance of the hood.
- Use duct tape to seal the joints between pipe sections.
- If necessary, prepare back wall frame with cross framing lumber for secure installation.
Using references on Table 2 and measurements on page 21-22, decide the level of the
lumber. Refer to Figure 22.
Hood Preparation before Installation
- Temporarily wire the hood to test for proper operation before installing.
- Peel protective film off the hood and the duct cover (if any).
- Remove the screws on the vent cover (rear) and cut along the line of the inner vent
cover (rear) opening. Refer to Figure 23.
- Cut the vent cover (rear) opening and reverse to the other side. Refer to Figure 24.
Figure 21 Figure 22
Inner Vent
Cover (Rear) Reversed
Vent Cover
(Rear)
Figure 23 Figure 24

15
- If necessary, attach two rubber stands (provided) with two (4x8 mm) screws (provided)
to the back of the hood.
- Attach the hood-mounting bracket to the back of the hood with nine (3/16” x 3/8”)
screws (provided) as shown in Figure 25.
Hood Installation
CAUTION: If required to move the cooking range to install the hood, turn OFF the power on an
electric range at the main electrical box. SHUT OFF THE GAS BEFORE MOVING A GAS
RANGE.
1. Using references on Table 2 and measurements on page 21-22, mark the leveling point
of the hood. Position two mounting screws (not provided) on the wall, leaving 1/8” away
from the wall as shown in Figure 26.
Figure 25 Figure 26
2. Use aluminum or steel pipe to connect the exhaust opening at the rear of the hood to the
ductwork. Use duct tape to make all joints secure and air tight.
3. Align hood-mounting bracket to the two screws on the wall and hook hood into place.
Tighten screws to secure hood to the wall. CAUTION: MAKE SURE THE HOOD IS
SECURE BEFORE RELEASING.
Duct Cover Installation
4. Mark the position of the duct cover-mounting bracket. Use reference Efrom Table 2 and
measurements on page 21-22. Attach and secure duct cover-mounting bracket with two
screws (not provided). Refer to Figure 27. NOTE: Inner duct cover will cover the
mounting bracket.
5. Connect electrical wires. Refer to “Wiring to Power Supply” on page 16
6. Slide the inner duct cover up 2 inches before sliding the entire duct cover onto the hood.
Refer to Figure 28.
Mounting
Screws

16
Figure 27 Figure 28
7. Adjust the height of the inner duct cover to the duct cover-mounting bracket. Secure the
inner duct cover with two (4x8 mm) screws (provided) as shown in Figure 29.
Figure 29
8. Fasten outer duct cover to multi vent exhaust on the hood with four (4x8 mm) screws
(provided).
9. Continued at “Install Accessories” on page 16.
Attach Together

17
Wiring to Power Supply
SAFETY WARNING
RISK OF ELECTRICAL SHOCK. THIS RANGE HOOD MUST BE PROPERLY GROUNDED.
MAKE SURE THIS IS DONE BY SPECIALIZED ELECTRICIAN IN ACCORDANCE WITH ALL
APPLICABLE NATIONAL AND LOCAL ELECTRICAL CODES. BEFORE CONNECTING
WIRES, SWITCH POWER OFF AT SERVICE PANEL AND LOCK SERVICE PANEL TO
PREVENT POWER FROM BEING SWITCHED ON ACCIDENTALLY.
1. Connect the electrical wires.
- If necessary to hide the electrical wire connections, push wires back into the wiring box.
Access the wire connections underneath the hood by removing the bottom casing from
the six screws. Before reattaching the bottom casing, make sure wires do not slip
between motors, impellers, or any moving parts to prevent any damage.
- Connect three wires (black, white and green) to house wires and cap with wire
connectors.
- Connect according to color: black to black, white to white, and green to green.
- Test the operation of the hood before moving on to the next step. Make sure power is
supplied to the hood.
Install Accessories
1. Place the oil container (round) into keyhole under each safety screen. Turn clock-wise
until firmly in place. Refer to Figure 30.
2. Slide oil container (oval) into plastic slot behind each safety screen as shown in Figure
31.
Figure 30 Figure 31
Final Assembly
1. Turn power ON in control panel. Check all lights and fan operation.
2. Make sure to leave this manual for the homeowner.

18
OPERATING INSTRUCTIONS
This KOBE hood is equipped with four electronic controls with a 10-second standby startup &
30-second delay shutoff, two powerful centrifugal turbine impellers with safety screens, two
bright 12-volt 20-watt halogen lights, and four oil containers.
The four control buttons are Light Control, Speed Control A (cycles through Low, Medium,
High, QuietMode™), Speed Control B (cycles through Low, QuietMode™, High, Medium) and
the Power Control (On/Off). Refer to Figure 32.
Figure 32
Turn On:
- Press Power Control (On/Off) button once. (If any Control button is not pressed within 10
seconds, power will be automatically turned off).
- The KOBE hood will start on Low speed. Each press of the Speed Control button will cycle
through the various speeds.
- Press Speed Control A button to cycle from Low, Medium, High, or QuietMode™. Press
Speed Control B button to cycle from Low, QuietMode™, High or Medium.
- Press Light Control button to turn halogen light on.
Turn Off:
- Press Power Control (On/Off) button once, panel lights will flash and power will be
completely shut off after 30 seconds.
OR
- Press Power Control (On/Off) button twice, all power will be shut off immediately.
- If only the lights are on, pressing Power Control (On/Off) button once will turn power off
after 30 seconds.
Speed Control
A
(Cycles through Low, Medium, High,
QuietMode™
)
Power Control
Speed Control B
(Cycles through Low, QuietMode™, High,
Medium
)
Light
Co
n
t
r
o
l

19
MAINTENANCE
CAUTION: NEVER PUT YOUR HAND INTO THE AREA HOUSING THE FAN WHILE THE
FAN IS OPERATING.
For the optimal level of operation, clean the range hood surface, safety screens, and oil
containers regularly.
To Clean Hood Surface
CAUTION: NEVER USE ABRASIVE CLEANERS, PADS, OR CLOTHS.
*** Regular care will help preserve its fine appearance.
1) Use only mild soap or detergent solutions. Dry surfaces using soft cloth.
2) If hood looks splotchy (stainless steel hood), use an orange base cleaner to clean the
surface of the hood. Avoid cleaner to get on the control switches. Only spread a light
coating over the surface of the hood and leave on for a few minutes (do not leave on too
long or this may cause damage to hood finish). Use soft towel to wipe off the cleaning
solution, gently rubs any stubborn spots. Use a slightly damp towel to get rid of any
cleaning solution. Use dry soft towel to dry the hood.
3) To bring the glow back into a stainless steel finish, use a stainless steel cleaner.
4) DO NOT allow deposits to remain for long periods of time.
5) DO NOT use ordinary steel wool or steel brushes. Small bits of steel may adhere to the
surface causing rust.
6) DO NOT allow salt solutions, disinfectants, bleaches, or cleaning compounds to remain
in contact with stainless steel for extended periods. Many of these compounds contain
chemicals, which may be harmful. Rinse with water after exposure and wipe dry with a
clean cloth.
To Clean Oil Containers, Safety Screens and Impellers
CAUTION: DRAIN OIL CONTAINER BEFORE OIL CAN OVERFLOW.
1) Normal Cleaning
- Spray a mild degreaser into the fan and turn on high speed. Liquid residue will
accumulate in the oil containers.
2) Cleaning Oil Containers
- Remove the oil container (round) by turning counter-clockwise.
- Remove the oil container (oval) by sliding forward.
- Wash with warm soapy water. Dry completely before returning into place.
- Top rack dishwasher safe.
3) Cleaning Safety Screens
- Remove the safety screen screw and slide the safety screen out.
- Wash with warm soapy water. Dry completely before returning into place.
- Top rack dishwasher safe.