KOBE CH7730SQB Troubleshooting guide

KOBE Brand Range Hood
Model No. CH7730SQB
CH7736SQB
CH7742SQB
CH7748SQB
CH-77 SERIES – 10" HEIGHT
INSTALLATION INSTRUCTIONS
AND OPERATION MANUAL

- READ AND SAVE THESE INSTRUCTIONS -
CONTENTS
IMPORTANT SAFETY INSTRUCTIONS................................................................................1
COMPONENTS OF PACKAGE.............................................................................................. 3
INSTALLATION ......................................................................................................................4
OPERATING INSTRUCTIONS.............................................................................................17
MAINTENANCE ...................................................................................................................18
SPECIFICATIONS................................................................................................................20
MEASUREMENTS & DIAGRAMS........................................................................................21
PARTS LIST .........................................................................................................................23
CIRCUIT DIAGRAM .............................................................................................................26
TROUBLE SHOOTING ........................................................................................................28
DISCLAIMER .......................................................................................................................29
WARRANTY.........................................................................................................................30
PRODUCT REGISTRATION................................................................................................32
- READ ALL INSTRUCTIONS CAREFULLY BEFORE STARTING -
ALL WIRING MUST BE DONE BY A PROFESSIONAL AND IN
ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES

1
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:
1. 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.
2. Always turn hood ON when cooking.
3. Use high settings on cooking range ONLY when necessary.
4. Do not leave cooking range unattended when cooking.
5. Always use cookware and utensils appropriate for the type and amount of food prepared.
6. Use this unit only in the manner intended by the manufacturer.
7. Before servicing, switch power off at service panel and lock service panel (if possible) to prevent
power from switching on accidentally.
8. Clean ventilating fan frequently.

2
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 AREAAND 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.

3
COMPONENTS OF PACKAGE
(Must keep all material for returns or refunds)
Range Hood Box Duct Cover Box – (Sold Separately)
{A} KOBE Range Hood - 1
{B} Warranty Registration Card - 1
{C} Instructions Manual - 1
{D} Baffle Filter - 2 (for 30”, 36”, 42” hood)
- 3 (for 48” hood)
(E}Bottom Casing - 1 (for 30” hood)
- 3 (for 36” & 42” hood)
- 2 (for 48” hood)
{F} Vent Cover (Top)
{G} Oil Tunnel – 1
{A}
{B} {C}
{D} {E}
{F} {G}
{H} KOBE Adjustable Duct Cover - 1
{I} Screws Package – 1
{J} Duct Cover-Mounting Bracket – 1
{K} Hood-Mounting Bracket – 1
{H}
{I} {J}
{K}
FOR MORE INFORMATION, PLEASE VISIT OUR WEBSITE www.KOBERangeHoods.com OR CONTACT KOBE
RANGE HOODS AT (877-289-5689)

4
INSTALLATION
PLEASE READ ENTIRE INSTRUCTIONS BEFORE PROCEEDING
Calculation before Installation
To calculate installation, please refer to TABLE 1. (All calculation 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 WALL MOUNT (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)]

5
SAFETY WARNING
HOOD MAY HAVE VERY SHARP EDGES; PLEASE WEAR PROTECTIVE GLOVES IF
REMOVING 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
Top Vent…………………………………………………………………………………
Rear Vent………………………………………………………………………………..
WALL MOUNT
Top Vent…………………………………………………………………………………
Rear Vent………………………………………………………………………………..
6
8
10
13

6
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.

7
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 or remove the
baffle filters and spacers. If necessary, arrange the electrical wires to run through the 1”
diameter hole on the top or the rear of 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.

8
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

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.
1. Puncture the knockout holes on the hood as shown in Figure 10.
2. Unscrew and remove the multi duct exhaust. Replace with {F} 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 or remove the
baffle filters and spacers. If necessary, 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.

10
WALL MOUNT INSTALLATION – TOP VENT
***This installation only applied with the purchase of a 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

11
- 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

12
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

13
WALL MOUNT INSTALLATION – REAR VENT
***This installation only applied with the purchase of a 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

14
- 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 calculation Efrom Table 2 for
references. 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

15
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

16
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.
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. Attach oil tunnel. Refer to Figure 30.
2. Refer to Figure 31. Slide the baffle filter into the hood. Push the baffle filter
upward. Slide forward. Pull downward. Fit into place.
3. For bottom casing, repeat above steps.
Final Assembly
4. Turn power ON in control panel. Check all lights and fan operation.
5. Make sure to leave this manual for the homeowner.
Figure 30
Figure 31

17
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 or baffle filters.
The four electronic controls 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 Control

18
MAINTENANCE
SAFETY WARNING
NEVER PUT YOUR HAND INTO AREA HOUSING THE FAN WHILE THE FAN IS
OPERATING.
Cleaning Hood Surface
CAUTION : NEVER USE ABRASIVE CLEANERS, PADS, OR CLOTHS. DO NOT
USE PAPER TOWEL ON STAINLESS STEEL.
For optimal operation, clean range hood and all baffle/spacer/filter/oil tunnel/oil container regularly.
*** Regular care will help preserve the appearance of the hood.
1. Use only mild soap or detergent solutions. Dry surfaces using soft cloth. DO NOT USE PAPER
TOWELS.
2. If hood looks splotchy (stainless steel hood), use a stainless steel cleaner to clean the surface
of the hood. Avoid getting cleaning solution onto or into the control panel. Follow directions of
the stainless steel cleaner. Caution: Do not leave on too long as this may cause damage to
hood finish. Use soft towel to wipe off the cleaning solution, gently rub off any stubborn spots.
Use dry soft towel to dry the hood.
3. DO NOT allow deposits to accumulate or remain on the hood.
4. DO NOT use ordinary steel wool or steel brushes. Small bits of steel may adhere to the surface
and cause rusting.
5. 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 lint free cloth.
To Clean 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 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.
To Clean Baffle Filter
CAUTION: DRAIN OIL FROM BAFFLE FILTER BEFORE OIL WILL OVERFLOW.
1. Remove all the baffle filters and oil tunnel.
2. Using a sponge, wash with warm soapy water. Dry completely before returning into place.
(Note: Baffle Filters are top rack dishwasher safe.)