Rheem 802V SERIES

72
Diagnostics
TABLE 13 (continued)
802V FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS
BLOWER FAULT - MOTOR CANNOT RUN
STATUS: This is a critical fault. The furnace will not operate in any mode.
(1) The static pressure is too high because the ductwork is improperly designed or is restricted for some other reason or the
filter needs cleaning
or replacing. Remove the obstruction or repair the duct so that static pressure does not exceed published
values in the specification sheets or installation instructions.
(1) The blower has hit the maximum speed or
torque limit specified by the manufacturer or is running at the temperature limit
because the static pressure is too high.
CAUSE
:
SOLUTION
:
60
BLOWER FAULT - BLOWER CAN STILL RUN
(2) Replace the Power Factor Correction choke.
(1) Remove obstruction or replace motor.
61
SOLUTION:
(6) The motor has failed catastrophically.
(3) The furnace model data is faulty or corrupted.
(3) Replace the furnace memory card with the correct replacement part from ProStock.
EXPECTED OPERATION
: All (including thermostat) operation should continue as normal. Blower operation may be slightly
compromised but will continue.
STATUS
: This is a non-critical fault experienced by the furnace. All operations (including thermostat calls) should continue as
normal with no perceivable difference in operation.
DESCRIPTION
: A blower fault which is non-critical allows the blower to continue to run but at less-than-optimal conditions.
(6) Replace the motor.
(4) Wiring to the motor and/or P.F.C. has become
compromised.
(4) Inspect and replace or repair wiring and/or connectors to the motor and/or P.F.C. as necessary.
(2) The motor Power Factor Correction (P.F.C.) choke is faulty and needs replacing.
CAUSE
:
(5) The blower wheel has become damaged or is not properly attached to the motor shaft.
(5) Replace the blower wheel and/or attach the blower wheel to the motor shaft properly.
(1) The motor has tripped on thermal limit because of
a restriction or bearing failure.
EXPECTED OPERATION
: If the furnace was in heating operation when this fault occurred, blower operation will immediately
stop and the furnace will shut down normally with post-purge at the correct speed. After the post purge (or immediately if no
heat call was present), no other operation (including thermostat calls) will occur until this fault is cleared.
This fault may be displayed in heating or cooling modes and may also be displayed in
heating mode after the main limit control
has been opened four times consecutively for more than 150 seconds (2m:30sec) each time. If this happens, the IFC
determines that the motor and/or blower is not functional and enters a hard
lockout condition requiring repair of the blower/motor
and manual reset of power to the furnace.