Operating instructions

Troubleshooting10
82 Operating instructions RC30 programmable room thermostat • Issue 02/2006
We reserve the right to make any changes due to technical modifications.
Code
Maintenance messages are identified by one three-digit code,
faults by two three-digit codes. These give the installer information
about the cause.
The first three-digit code is displayed directly.
Resetting faults (Reset)
Some faults can be rectified by resetting the system.
z Press the "Reset" button on the control panel to reset faults.
The display shows "rE" whilst the reset is implemented.
If the fault recurs, notify your installer as soon as possible,
especially if there is a risk of frost.
Press the "Display" button to display the second code.
CAUTION!
SYSTEM DAMAGE
through frost.
The heating system can freeze up in cold weather if it has been
switched OFF through a fault shutdown.
z Try and reset the fault.
z If this is impossible, immediately notify your installer.