Manufacturer Troubleshooting Guide

System Reset

• • Turn the ON/OFF switch to the “OFF” position (Bottom of T-stat).
  • Simultaneously press and hold the “MODE” & “ZONE” buttons and then turn the ON/OFF switch to the “ON” position. 

• “FF” should appear on the display. At this point you can release “MODE” & “ZONE”

• If “EE” appears when the buttons are released, perform the reset again. If “EE” keeps displaying, there is a communication problem issue in the system.
• When a dip switch is turned on or off after initial configuration, a reset must be performed to allow the comfort control center to recognize the updated change. 
• Any time a component is added or removed, it is best to perform a reset.

Troubleshooting

When EE is displayed on the T-Stat

• Disconnect all communication cables to all units but the unit with the T-Stat (Zone 1) and do a reset.
• If that zone works, and no EE is present, you know the comm cable and control board for that unit is working. 
• Connect the next zone and reset. 
• With each zone connected do a reset. 
• When a zone is connected and the EE is displayed that zone has a problem with the cable or control board. 
• When you find out where the problems lies (specific zone) you will need to determine if the cable or the control board is the issue using a test RJ-11 Cable. 
• Remove the “installed” cable from the equation and use your test cable, do a reset, if the problem is still persistent then the board is defective. If the problem goes away you know the issue lies in the “installed” cable that was removed during testing with test cable. 

Manufacturer Troubleshooting Guide

Operating Instructions

Quick Reference

• With the thermostat turned off (screen backlit), simultaneously press and release the “Program”, “Fan” and “F/C” buttons. 
  
• Display shows “DIGN”, the zone and the diagnostic command.

• Use up & down buttons to cycle through commands.

Tip: You can go through these commands one of two ways. You can either go through commands 1-20 in a specific zone (Zone 1-4), or you can go into a specific command (5 – for compressor for example) and while staying in that specific command, hit the ZONE button to check the same command on the next zone and so on.

ERROR CODES

• E1 – Loss of communication 

• • • Two power module DIP switches set as same zone.
    • Possibly a faulty communication cable.
    • 12 Volt DC not clean, try direct DC from battery.
    • Causes power module to shut down.

• E2 – Room Air Sensor Open Circuit

• • • Unlikely to occur; if no remote sensor, CCC2 wall thermostat built-in sensor is used.
    • Useful in diagnostic mode to test if remote sensor is installed on zone or open.
    • No heat or cool operation.

• E3 – Room Air Sensor Short Circuit

• • • Error shown if either remote sensor or CCC thermostat built-in sensor is shorted.
    • No heat or cool operation.

• E4 – Outdoor Ambient Sensor Out of Range

• • • No heat pump operation.

• E5 – Freeze Sensor Out of Range

• • • No AC operation. 

• E6 – Open Circuit Humidity Sensor 

• • • Dehumidify operation is inhibited (not used on current units).

• E7 – 120 VAC not Detected

• • • 120 second delay to allow for GEN START operation.
    • All 120 VAC relays switched off (furnace relay not affected).
    • Verify white neutral wire on control board has good connection to run capacitor and that capacitor is good.

• E8 – Invalid Zone Configuration

• • • Heat pump & heat strip selected on same zone. Not allowed on the CCC 2 system.
    • No heat or cool operation on zone.

• E9 – Invalid Zone Configuration

• • • Dehumidify along with Heat Pump or Heat Strip
    • No heat or cool operation on zone. 

Analog

Operating Instructions

Troubleshooting

Bimetal

Troubleshooting