Accurex XB Installation, Operation And Maintenance Manual page 33

Troubleshooting
Problem: Pilot lights are being blown out or cooking equipment is being cooled by make-up air.
Are there drafts from make-up air?
Problem: Cold air can be felt by the cook at the hood.
Is this a short circuit hood?
Is this an air curtain hood?
Is the make-up air part of the hood
or an attached plenum?
Problem: The kitchen gets hot.
Is the hood capturing?
Is this an air curtain hood?
Is the make-up air part of the hood
or an attached plenum?
Problem: Cooking odors in the dining area.
Is the hood capturing?
Is there a draft through doors between the
kitchen and dining area?
Problem: Grease is running off the hood.
Is there grease on top of the hood?
Is the caulk missing or damaged?
Is the grease cup inserted properly?
Problem: Hood is noisy.
Is the fan running in the correct direction?
Are the filters in place?
Is the hood over exhausting?
Before calling your manufacturer's representative to report a problem, have the following information available:
1. Review / summary of troubleshooting section in
installation operation manual.
2. Hood model and serial number.
3. Current cooking equipment line-up.
4. Size of hood (length, width and height).
5. Island or wall configuration.
6. Multiple hoods on one fan.
7. Nature of spillage (one end; all around the edges).
8. Does the smoke make it to the hood?
Try turning off or reducing the amount of make-up air; block off portions of the
supply to direct air away from the problem area (test with cardboard first); remove
any obstructions in front of supply that directs air toward cooking equipment.
Turn off or reduce the amount of air supplied to short circuit.
Turn off or reduce the amount of air supplied to the air curtain; heat the supply air.
Try turning off or reducing the amount of make-up air; heat the supply air.
Hood is not drawing enough air, see sections on fan performance and hood
capture.
Turn off or reduce the amount of air supplied to the air curtain.
Try turning off or reducing the amount of make-up air; cool the supply air.
Hood is not drawing enough air, see sections above on fan performance and
hood capture.
Decrease make-up air in the kitchen; increase exhaust air through hood.
Exhaust duct is not correctly welded.
Clean problem area and recaulk.
Put grease cup back in place.
See exhaust fan troubleshooting section.
Replace missing filters.
Slow down fan (see exhaust fan troubleshooting section)
9. Height hood is mounted above finished floor.
10. How make-up air is brought into the kitchen (hood,
ceiling diffusers, separate plenum).
11. Is exhaust system controlled by a variable volume
system?
12. Is the fan noisy?
13. Photos or videos of the issue/problem may be
helpful.
Kitchen Hoods • Type I and Type II 33