Carrier 38TDB Instrukcja Naprawy Pobierz pdf (Strona 8)

Software Revs 3,5,6,8,10, 12 Infinity /Evolution Troubleshooting (Rev. 2)

10-12-2006

8

User Interface Generated Fault Descriptions

Fault

Description

User Interface Display Action

Original

Models

-A models

Onboard

temp/humidity

sensor error

NO SENSOR

DATA on main

screen

TEMP/HUMIDITY

SENSOR FAULT

Sensor on User Interface has failed.

Replace User Interface or use remote

sensor for zone 1

Blower cutback

from indoor unit

EXCESS STATIC PRESSURE in fault

history

No error displayed on main screen

Max RPM was reached due to high

static pressure. In cooling and heat

pump heating, the airflow will step

down in an attempt to maintain system

operation. In furnace heating, if

minimum airflow cannot be achieved,

the Zoning Control will dump air where

possible or shut down the furnace

until more zones call for heat. In non-

zoned systems, the UI will not shut the

equipment down. See details in next

section.

Remote Room

Sensor failed

ZONE SENSOR

in fault history NO

SENSOR DATA

on main screen

for that zone

REMOTE SENSOR

FAULT in fault history

NO SENSOR DATA on

main screen for that

zone

Check wiring and ohm out sensor.

Smart sensor

zone x

communication

fault

SMART SENS ZONEx COMM in fault history

NO SENSOR DATA on main screen for that

zone

System cannot communicate with

smart sensor. Check bus voltages and

wiring.

Indoor unit

communication

fault

IDU COMM

FAULT in fault

history

CRITICAL

MALFUNCTION

on main

INDOOR UNIT

COMMUNICATION

FAULT in fault history

SYSTEM

MALFUNCTION on

main screen

User interface has lost communication

with indoor unit. Check voltages and

wiring. Perform communication bus

troubleshooting procedure shown on

page 21.

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 21 22

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