AVPTC Service Manual

SERVICING
39
ComfortNet ™
Thermostat Only
Symptoms of Abnormal Operation
(Communicating & Non-communicating
Thermostat)
Diagnostic/Status
LED Codes
Fault Description
Message Code
Possible Causes Corrective Actions Notes & Cautions
x Air handler fails to operate. x Integrated control module LED display
provides indicated error code.
x ComfortNet thermostat “Call for Service”
icon illuminated.
x ComfortNet thermostat scrolls “Check Air
Handler” message.
9 Flashes
x Data not yet on network.
NO NET
DATA
d0
x Air handler does not contain any
shared data.
x Populate shared data set using
memory card.
x Turn power OFF prior to
repair
x Use memory card for the
specific model.
x Insert memory card
BEFORE turning power ON. Memory card may be removed after data is loaded.
x Turn power OFF before
removing memory card.
x Error code will be cleared
once data is loaded.
x Operation different than expected or no
operation.
x Integrated control module LED display
provides indicated error code.
x ComfortNet thermostat “Call for Service”
icon illuminated.
x ComfortNet thermostat scrolls “Check Air
Handler” message.
11 Flashes
x Invalid memory card
data.
INVALID
MC DATA
d4
x Shared data set on memory card
has been rejected by integrated control module
x Verify shared data set is correct
for the specific model. Re- populate data using correct memory card if required.
x Turn power OFF prior to
repair
x Use memory card for the
specific model.
x Insert memory card
BEFORE turning power ON. Memory card may be removed after data is loaded.
x Turn power OFF before
removing memory card.
x Error code will be cleared
once data is loaded.
PCBJA101- PCBJA102 AIR HANDLER DIAGNOSTIC CODES