9.2
A
NNUAL
M
AINTENANCE
(
ESSENTIAL
)
Your unit is equipped with a wall controller (ACCGSC1 or 40425), which tells when to perform maintenance when the
Filter Maintenance
light stays ON
. Otherwise, this maintenance must be performed once a year to ensure your unit proper operation for years to come.
Proceed as the Semi-annual Maintenance (Section 9.1), but instead of replacing the prefilter (point 4), discard the complete HEPA Filter
cartridge (including prefilter). Install a new HEPA filter cartridge with a new prefilter on it.
NOTE: In annual maintenance, for 40425 wall controller, press simultaneoustly both and buttons for 5 seconds to reset the counter
and turn the LED off.
9. MAINTENANCE
(CONT’D)
- 35 -
9.3
O
PTIONAL
A
LPINE
/
PINE
F
ILTER
(
PART NUMBER
: ACCGSUP5)
During pollen season, or as needed, remove the assembled hood from its backplate by removing its
2 retaining screws.
Then, slide out the optional Alpine/pine filter and clean it under water. Let dry before reinstalling it on the
assembled hood. Reinstall the hood on its backplate.
VA0024
VD0124
screw
PROBLEMS
SOLUTIONS
1.Unit does not start at Low
• Check breaker or fuse in main distribution panel or GFI outlet.
or High position.
• Check there is 120V at the electrical outlet.
• Make sure the unit main switch is properly set in Normal or Boost position.
• If a wall control (ACCGSC1 or 40425) is connected, disconnect control wire from the
unit, then make sure the unit main switch is properly set in Normal/Remote or Boost
position.
• Check the fuse on electronic board. If blown, replace with the same type.
2.Unit does not run at Low
• If a wall control (ACCGSC1 or 40425) is used, disconnect control wire from the unit.
speed, but runs at High.
Then, if the unit runs at Normal speed, check control wiring and wall control connections.
3.Unit is not operating as per
• Check if the unit main switch is in “Normal/Remote” position.
the selected mode.
• Check wall control wiring.
4.Wall control indicators do not work
• Check wall control wiring.
properly or not at all.
5.On 40425 wall controller only, 1 or 2
• Check if the unit main switch is in “Normal/Remote” position.
light indicators are flashing every second.
• Check wall control wiring.
6.On 40425 wall controller only,
• Check wall controller wiring.
wall controller screen indicates E1.
7.On 40425 wall controller only,
• The temperature sensor is defective. (The unit will automatically switch to OFF mode
wall controller screen indicates E2.
if this happens.)
10.TROUBLESHOOTING
If the problem is still not solved, call your installer or the nearest approved Service Center.
Also, you can reach the Customer Service Departments or Technical Supports listed below.
Broan-NuTone LLC
• Customer Service Department:
Telephone:
1-800-558-1711
Fax:
1-800-356-5862
• Technical Support:
Telephone:
1-800-637-1453
Fax:
1-262-673-8709
