Toyotomi Laser 60AT Manual page 25

L A S E R
Section 3
STEP 3: Unplug Heater
Disconnect heater plug from outlet.
STEP 4: Check for Cause of Overheating
NOTE:
Over heating is usually caused by objects that
impede free air circulation.
Look for debris and other obstructions in front
of heater; near the circulation fan at rear of the
heater; and at the flue pipe top just outside the
dwelling.
STEP 5: Clean Circulation Fan Cover
STEP 6: Remove Front Panel Assembly and
Top Plate
STEP 7: Clean Heater Interior
WARNING:
Before proceeding to clean heater, be
sure that the heater interior is cool
enough to touch.
With a clean, lint-free, damp rag or
other appropriate cleaning material,
wipe all dust, dirt and debris from
exterior of cabinet, including the
exterior of the heat chamber and the
heat exchanger.
STEP 8: Replace Front Panel Assembly and
Top Plate
STEP 9: Reconnect Laser Heater Power Plug
to the Electrical Outlet
STEP 10: Switch ON Heater
STEP 11: Reprogram
STEP 12: Re-set the Timer
CAUTION:
Upon the completion of recovery
procedure, if the heater overheats
again, something is wrong!
Do not operate heater until condition
has been corrected.
H E A T I N G S Y S T E M S
Operation
S E R V I C E M A N U A L 22