Error Codes - Friedrich VERT-I-PAK A-Serie Manual De Instalación Y Operación

Error Codes and Alarm Status
Unit Control Panel
The display shown below has four digits. The left two digits indicate the error code ( 1 to 24 ), The On/Off icons above these
two digits indicate the currents state of the error code. The right two digits show the history count (up to 99) of the associated
error code. The display contains a maintenance icon (wrench) that will illuminate to indicate when the unit needs mainte-
nance.
Error
Code
1 Front Panel Button Stuck For More Than 20 Seconds
2 Input Voltage Out of Specification (103 - 127 / 187 - 253)
3 Indoor Temperature Sensor is Open or Shorted
4 Indoor Coil Temperature Sensor is Open or Shorted
5 Outdoor Coil Temperature Sensor is Open or Shorted
6 Outdoor Coil > (grater than) 175 F
7 Indoor Coil < (less than) 30 F for 2 consecutive minutes
8 Unit Cycles > (greater than) 9 Times per hour
9 Unit Cycles < (less than) 3 Times per Hour
10 Room Freeze Protection
11 WallStat Problem or Connection Issue
12 Not Applicable
13 High Pressure Limit Switch is Open
14 Not Applicable
15 Heat Pump Error
16 Temperature Beyond Operating Limits
17 Equipment Doesn't Meet Minimum Configuration
18 Not Applicable
19 Not Applicable
20 Not Applicable
21 Not Applicable
22 Outdoor Coil Temperature < 30 F for 2 consecutive Minutes
23 Frost Protection
24 Not Applicable
16
Problem
Check Error Codes
1. Press the Enter key to activate the display.
2. Each press of the scroll key display the next error code.
Clear History Counters
1. Press & hold the Enter key and the Scroll Key for ~ 6 seconds
Continue to monitor for "OPEN" (Unstuck) switch. Do not process switch input.
Unit stops, open all relays until voltage is back within specs then resume operation.
Unit defaults to 75°F in COOLING or 68°F in HEATING and will continue to operate.
The unit's control board defaults 40°F. It will override the sensor and the unit will
continue to operate.
The unit defaults to 20°F, overriding the sensor. The unit will continue to operate.
Using Elec Heat if available for HEATING. If not available, it will use HEAT PUMP if
the outdoor temperature allows.
The unit will shut down for 5 minutes. resume operation for 3 minutes. If test fails 3
times, the severity is increased and the unit operation is locked out.
The compressor will turn off and the High Fan speed will run. When coil temp reachs
45°F the unit will resume operation after lockout time.
The unit will continue to operate and be monitored.
The unit will continue to operate and be monitored.
Only use if Electric Heat is available. Run High Speed and Electric Heat until room
temp reaches 46°F. The unit will display "FRZ" during operation. Logged Only
The unit will not operate.
Not Applicable
If unit is cooling or heat pump is on, shut down compressor. Run high fan until
switch closes, then resume operation. The third occurance in 1 hour locks unit out.
Applicable to 24K unit only.
Not Applicable
If indoor coil temperature is less than ambient temperature for 3 minutes the unit will
use electric heat to satisfy the heating demand.
Occurs if the ambient temperature range falls below 0°F or greater than 130°F. The
error code will remain on until the temperature reaches the operating range and then
the unit will return to normal operation.
The compressor must be enabled and have at least 2 fan speeds
Not Applicable
Not Applicable
Not Applicable
Not Applicable
Unit will use electric heat to satisfy heating demands until the temperature equals or
exceeds 45°F. Applicable for Heat Pump models only.
Unit will run active defrost for a minimum of 6 minutes when Heat Pump run time is
greater than 60 minutes and outdoor coil temperature is 26 F or less.
Not Applicable
Action